Hi,
Anyone has this?
http://www.keomo.com/prod_id3_charge_chargebank.htm
If yes, how good is it?
gogol said:
If yes, how good is it?
Click to expand...
Click to collapse
I can't comment on that one - I have a similar product from APC though and am very happy with it:
http://www.apc.com/resource/include/techspec_index.cfm?base_sku=UPB10
Richard
Interesting, but how much is the capacity in mAh?
I saw only 10 Watt hours ...
PS: I ordered Keomo anyway.
rsolomon said:
I can't comment on that one - I have a similar product from APC though and am very happy with it:
http://www.apc.com/resource/include/techspec_index.cfm?base_sku=UPB10
Richard
Click to expand...
Click to collapse
gogol said:
Interesting, but how much is the capacity in mAh?
I saw only 10 Watt hours ...
PS: I ordered Keomo anyway.
Click to expand...
Click to collapse
Please do let us know (here) what you think! How does it charge? (The APC charges via a miniUSB port and outputs via a USB port - so you can use the same wall charger for it as for your miniUSB device.) How much did it cost?
I'm not 100% sure about the APC capacity - at 5V, 10WH is 2000mAh. (Watt hours is just Volts * Amp Hours). If you figure 3.7V lithium cell voltage it might be more like a 2700mAh battery....but since anything with a USB connector has to put out 5V I think 2000mAh is the right number to use - and hope APC rates the capacity at that connector.
The Keomo said it had a 2200mAh battery, so that's only ~8.1 WH. Even assuming 100% efficiency in the 5V upconverter you're at most looking at ~1600 mAh at the USB port. So I suspect the APC has a bit more capacity, though it's definitely larger. The flatness actually makes the size pretty manageable in my experience, but even smaller would of course be even better
Richard
I have not received it yet, hopefully this weekend or next Monday.
The device cost me 35 euro
I like the small factor of Keomo, but honestly, I did not find APC when I was searching this kind of battery. I could choose APC if it has more capacity btw.
For the same price I ordered this one (sorry, german website ):
http://www.hot-wire-telekom.de/index.php?aktion=detail&suche=HTC Kaiser&asuche=HW133335#bilder
A foldable solar panel with a set of different adapters.
Eurybia said:
A foldable solar panel with a set of different adapters.
Click to expand...
Click to collapse
Interesting idea - what's the current rating?
I'd be completely shocked (pun intended) if it can even charge a Kaiser battery - I think you'd need a much larger panel to put out even close to the 500mA of a spec USB port....
Regardless it wouldn't work too well for me, since I usually end up using my extended battery on an airplane
Richard
rsolomon said:
Interesting idea - what's the current rating?
I'd be completely shocked (pun intended) if it can even charge a Kaiser battery - I think you'd need a much larger panel to put out even close to the 500mA of a spec USB port....
Click to expand...
Click to collapse
Oh wait, I see - it's a battery with integrated solar recharger. Note that it's only 1200mAh or about 4.4WH so half or less the capacities we've been discussing. Having a battery, I at least believe it will work - but you won't have a lot of extra capacity, and I'm curious how many hours of sunshine it needs to recharge fully. Is it possible to charge some other way than the solar panels?
Richard
I am still charging the Keomo
The input is 500 mAh via "mini-USB".
The output is 1000 mAh via "USB-A"
Anyone know how to calculate how long to charge 2200 mAh battery using mini-usb?
gogol said:
The input is 500 mAh via "mini-USB".
The output is 1000 mAh via "USB-A"
Anyone know how to calculate how long to charge 2200 mAh battery using mini-usb?
Click to expand...
Click to collapse
mAh is a capacity measurement, not a current measurement.... I assume you mean 500mA and 1000mA. It's just math: 2200mAh / 500mA = 4.4hrs.
Richard
Bad performance
Here is my test and review of Keomo Charger.
My Kaiser was at 48% of battery, and the Keomo was at 100% (I charged more than 15 hours!).
Keomo has 3 indicator lights.
I started charging at 19:02 ...
My Kaiser was at 58% then 1 Keomo light went off ...
My Kaiser was at 75% then another 1 Keomo light went off ...
My Kaiser was at 96% then the last Keomo light went off ... !
The Keomo was dead ....... at 22:15
Total charging time = 3 hours and 13 minutes.
So, conclusion: 100% Keomo battery = +48% Kaiser capacity
Really disappointed to be honest
The Keomo was advertised that it has 2200 mAh capacity. Well, I know nothing about this mAh , battery technology, etc. I thought, Kaiser has 1300 mAh, so this Keomo should be able to charge 100% of Kaiser battery. I was wrong.
Richard, how is your APC perform???
Have you measured 100% APC battery = ???% Kaiser?
You are not far from right
gogol said:
Here is my test and review of Keomo Charger.
My Kaiser was at 48% of battery, and the Keomo was at 100% (I charged more than 15 hours!).
Keomo has 3 indicator lights.
I started charging at 19:02 ...
My Kaiser was at 58% then 1 Keomo light went off ...
My Kaiser was at 75% then another 1 Keomo light went off ...
My Kaiser was at 96% then the last Keomo light went off ... !
The Keomo was dead ....... at 22:15
Total charging time = 3 hours and 13 minutes.
So, conclusion: 100% Keomo battery = +48% Kaiser capacity
Really disappointed to be honest
The Keomo was advertised that it has 2200 mAh capacity. Well, I know nothing about this mAh , battery technology, etc. I thought, Kaiser has 1300 mAh, so this Keomo should be able to charge 100% of Kaiser battery. I was wrong.
Richard, how is your APC perform???
Have you measured 100% APC battery = ???% Kaiser?
Click to expand...
Click to collapse
You are very accurate in this conclusion I bought one last weekend, but so far I have used it only twice with similar results! I resisted the urge to post, because there is always a statement about Li ion batteries that they should be cycled through charge-discharge a few times before they attain their full capacity from new. So I hope a few more percentage points will be gained with use
Conclusion: Don't buy it.
gogol said:
So, conclusion: 100% Keomo battery = +48% Kaiser capacity
Click to expand...
Click to collapse
The only flaw I see in your methodology is that having the Kaiser on draws even more current, so you further increase the power "lost" to running the Kaiser vs charging the battery. You should get slightly better results by leaving the Kaiser in standby ("off") and timing until the light goes green. I doubt you're off by THAT much though
Another issue may be the Keomo not putting out enough current - thus the Kaiser sort of loses ground, in other words it's discharging almost as much in X period of time as it's charging due to the slow charge rate. The APC claims to put out 1.6A so the Kaiser should charge at full rate.
gogol said:
Richard, how is your APC perform???
Have you measured 100% APC battery = ???% Kaiser?
Click to expand...
Click to collapse
I had a Hermes for a year or so and used the APC a bunch back then - my rough estimate was 3-4 "charges" from the Hermes at ~40-50% up to 100%. I've not done any calculation with the Kaiser - I will do that and see what I get. It's tougher now because I'm running DirectPush for work and may have a hard time finding time to let the Kaiser run down *and* turn off DirectPush to keep it from sucking up all the power.
I did use up all the APC power on a 9 hour flight from Europe to the USA where I watched 3 hours of video on the plane (full screen MP4 in Windows Media Play) and read a couple of ebooks....but that doesn't tell us much objectively
Richard
victoradjei said:
I resisted the urge to post, because there is always a statement about Li ion batteries that they should be cycled through charge-discharge a few times before they attain their full capacity from new.
Click to expand...
Click to collapse
FWIW: I hear this a lot online, but my personal experience has never borne it out - and I've never heard it from any of my contacts in the electronics industry.
Richard
You are right that it could charge much more when the Kaiser is in stand by, but that is not the way I want. I want to use the portable battery to "continue" to use Kaiser when it runs out of power.
Based on your story, it looks APC is so much better. You said 3 times or 4 times charging Hermes for additional 50% ... Thats a lot.
Well, I just ordered APC
PS: You may use your mobile phone in a flight? I remembered once I said to the flight attendant that I set to "flight mode", but she still asked me to turn it off
rsolomon said:
I had a Hermes for a year or so and used the APC a bunch back then - my rough estimate was 3-4 "charges" from the Hermes at ~40-50% up to 100%. I've not done any calculation with the Kaiser - I will do that and see what I get. It's tougher now because I'm running DirectPush for work and may have a hard time finding time to let the Kaiser run down *and* turn off DirectPush to keep it from sucking up all the power.
I did use up all the APC power on a 9 hour flight from Europe to the USA where I watched 3 hours of video on the plane (full screen MP4 in Windows Media Play) and read a couple of ebooks....but that doesn't tell us much objectively
Richard
Click to expand...
Click to collapse
gogol said:
PS: You may use your mobile phone in a flight? I remembered once I said to the flight attendant that I set to "flight mode", but she still asked me to turn it off
Click to expand...
Click to collapse
I always do! Turn off all wireless and use the pda. Only barred for take-off and landing. Going to use it on flight in 3 days, but Keomo can't cross the Sahara alive!
gogol said:
You are right that it could charge much more when the Kaiser is in stand by, but that is not the way I want. I want to use the portable battery to "continue" to use Kaiser when it runs out of power.
Click to expand...
Click to collapse
Oh I see. For that mode of operation it's probably psychological, but I think it works best to start with the device fully charged, then let it run off the external battery until that is dead. Doesn't seem like the ultimate runtime should be different, but I think I'm more comfortable knowing there's only X hrs left in my flight and I now have a dead external battery and a full internal battery.
I hadn't read your desired usage model first, but I did a test similar to yours this morning. I ran the Kaiser down to 47% and then connected it to my APC battery and put the Kaiser back in standby. (The APC was fully charged a few weeks ago, but unused since then - so figure 95-100% charged.)
09:23 47% 4 lights
10:23 73% 3 lights
11:23 83% 3 lights
12:22 100% 2 lights
The unit obviously finished charging sometime between 11:23 and 12:22 because the APC had auto-shutoff already. I'm confused by the 11:23 datapoint as I'd think the Kaiser wouldn't go to low-current charge mode that early in the battey's life, but maybe it does at 80% vs the typical 90%?
My guess is the APC had just dropped below the 3 lights threshold, but I wasn't around to see it. (You have to push the button on the APC to turn on the power display.) Per APC the light to capacity mapping is:
4: 85-100%
3: 55-85%
2: 25-55%
1: <25%
You could pretty safely get 2 of these ~50% up to 100% recharges then - and probably more in flight mode, since I was running DirectPush on a 3G network the whole time (though no e-mails came in during the test).
Richard
gogol said:
PS: You may use your mobile phone in a flight? I remembered once I said to the flight attendant that I set to "flight mode", but she still asked me to turn it off
Click to expand...
Click to collapse
Yes, ditto to what victoradjei said - I turn it off during takeoff and landing but on during normal flight. I've never had a problem with the flight attendents, but that's one more thing I like about PhoneAlarm - having the big airplane icon right on screen in case of questions
In fact the crew on my Germany to USA flight were quite entranced by the sight of my Tilt playing video, running off my APC battery and into my noise cancelling headphones They were only sad that the Tilt wasn't a "freebie" phone from AT&T - or I probably could have sold 3 lines of service right then and there .
Richard
Hi Richard,
Your test result is pretty amazing, definetely APC is way much better than Keomo. Probably the best in this area, in terms of size and power. For sure there are other portable battery which are more powerful but very big in size + ugly.
You could charged your Kaiser from 47% to 100% and still have 2 lights on in the APC (down from 4 lights).
I ordered APC last night, hopefully I got it asap because my long trip will be next week.
And I forgot that I still dont have bluetooth speaker phone ! Silly me ... How can I watch movie silently while charging the Kaiser without BT speaker phone
rsolomon said:
...
I hadn't read your desired usage model first, but I did a test similar to yours this morning. I ran the Kaiser down to 47% and then connected it to my APC battery and put the Kaiser back in standby. (The APC was fully charged a few weeks ago, but unused since then - so figure 95-100% charged.)
09:23 47% 4 lights
10:23 73% 3 lights
11:23 83% 3 lights
12:22 100% 2 lights
The unit obviously finished charging sometime between 11:23 and 12:22 because the APC had auto-shutoff already. I'm confused by the 11:23 datapoint as I'd think the Kaiser wouldn't go to low-current charge mode that early in the battey's life, but maybe it does at 80% vs the typical 90%?
My guess is the APC had just dropped below the 3 lights threshold, but I wasn't around to see it. (You have to push the button on the APC to turn on the power display.) Per APC the light to capacity mapping is:
4: 85-100%
3: 55-85%
2: 25-55%
1: <25%
You could pretty safely get 2 of these ~50% up to 100% recharges then - and probably more in flight mode, since I was running DirectPush on a 3G network the whole time (though no e-mails came in during the test).
Richard
Click to expand...
Click to collapse
gogol said:
And I forgot that I still dont have bluetooth speaker phone ! Silly me ... How can I watch movie silently while charging the Kaiser without BT speaker phone
Click to expand...
Click to collapse
I should have mentioned that I use one of these:
http://www.semsons.com/2miusband3st.html
to achieve that. I've seen a number of similar products - and actually Semsons seems to be selling a different one than I bought from them, mine has the miniUSB connector coming out the back vs out the side like that. You should be able to find any number of headphone + miniUSB adapters for HTC phones that will allow charging plus headphones.
(You're not supposed to use BT or any other RF wireless on the plane of course.)
Richard
Related
Just thought I'd pass this along. This little battery charger for the Wing or Dash charges your phones battery with just one AA battery. It kicks up the voltage from 1.2-1.5v to 5.7v. Saps the hell out of the AA battery but charges the phone -- its really cool. I bought two of them.
I'm Not the seller - I have No interest in selling these. Just thought Wing users would like to know there's such a thing out there.
http://cgi.ebay.com/EMERGENCY-AA-BA...ryZ48492QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
How long of battery power do you get for 1 AA battery?
If it has small USB connector, can I use it for TyTn II (Kaiser)?
I will time it
Hi -- I've not timed it yet but I will and post results.
Iffy
I got one of those little portable chargers for mobile devices. It's a neat concept. Upon pruchasing one of those (in the US) for $19.99, it came with a cheap AA battery, and several adapters for different mobile phones. I used the AA battery that came with it and it charged my HTC Herald P4350 for 20 minutes. You can actually drain (and cause damage too) your phone battery it you have it plugged in (with a dead AA battery) your device (it said so on the package). This is my experience and others may be different. In a nutshell, the amount of time it charges depends on what kind of AA battery you use. Again, this is my experience.
True
Yes it does depend on the type of AA battery you use. A Lithium AA will give you much more than a rechargable NMHI. I put in an alkaline AA and talked with my brother for two hours today using my Bluetooth headset and this thing kept my phone to 100% charge the whole time.
I am not planning on keeping it plugged in all the time especially when its dead.
I am going to use NIMH AA batteries in my Solar Charger that sits on my Dashboard. Rotate them out and get basically free energy. Hey I know its not going stop the Icebergs from melting but its something.
Here are the specs from the package:
Input 1.2-1.5v
Output 5.7v
Standby 80 hours
Talk Time 2 hours
Charge current 850-2300m
Discharge 150-530m
*This one says nothing about draining your phone's battery in fact it says if using NiCads or NMHI to make sure it drains all the way down before you disconnect it. It says best results can be obtained using a Lithium AA but who can afford that.
It Should work with the Kaiser
gogol said:
How long of battery power do you get for 1 AA battery?
If it has small USB connector, can I use it for TyTn II (Kaiser)?
Click to expand...
Click to collapse
Yes it has a mini USB connector and it should work with the Kaiser but you may want to ask the seller to be sure.
I have been pondering...
Our phone is awesome in every aspect.... battery life is between 6 hrs ~ 7 hrs depending usage...
However... charging the battery seems to take FOREVER !!!!!!!!
it takes like 5+ hours to charge completely
if you want to charge it faster, wireless, phone, screen, etc needs to be off.
so that's the only inconvenient thing i found about our phone.
good thing is i can plug it in anywhere it has USB ports, including my car.
Make sure you use the correct charger. Many chargers that use the same socket do not charge at the same rate as the correct one due to internal wiring - I am not electrician but found this out the hard way.
Many USB/car chargers do not provide sufficient charge to even keep up with Athena power use.
AllGamer said:
I have been pondering...
Our phone is awesome in every aspect.... battery life is between 6 hrs ~ 7 hrs depending usage...
However... charging the battery seems to take FOREVER !!!!!!!!
it takes like 5+ hours to charge completely
if you want to charge it faster, wireless, phone, screen, etc needs to be off.
so that's the only inconvenient thing i found about our phone.
good thing is i can plug it in anywhere it has USB ports, including my car.
Click to expand...
Click to collapse
The SIZE matters... also in charging.
May be I am wrong, other in this forum are better than me in physic
but
1) The power usage when connected via activesync, having screen backlight 50%, Big HTC HOME is around 200/300 mA/h.
2) The battery is 2200 mA,
3)if you charge it with a 500 mA/h charger... 500-250=250 mA/h.... 9 ours to have a full 2200 mA charge,
Athena have also XSCALE CPU (clock increasing during heavvy usage) and the power usage could increase very quickly (I have seen some 1000 mA/h peak) due to heavvy memory and CPU usage, or microdrive access
Looking at DIVX movies, full screen, USB 1.0 connected... the power DECREASES (slowly)!
And I would like to add, that after several tests with different chargers, no doubt that using HTC chargers makes a big difference, specially the car charger.
In the case of car charger, using a normal one ( output 5V 500mA ) I made a trip of 300Km and the power level went down from 100% to 70% using TomTom.
And with the HTC charger ( 5V 2A ) leaving home with 50% and arriving the same destination with 100%, again using TomTom.
I'm assuming that using other GPS software the results will be equal.
I used car chargers with 500mA, 800mA and also 1A and I tought that the results should be different but in fact it seems to me that one thing is what the charger "says" and another thing is what can "give".
hope this helps.
poppey said:
.. it seems to me that one thing is what the charger "says" and another thing is what can "give".
hope this helps.
Click to expand...
Click to collapse
Yes, as I said it is a hard-wire issue
Yup, 2 pins need to be connected together before the Athena will go into "fast charge mode". You could hook up a 1000 amp bench power supply but still discharge your battery with GPS active - until you short the 2 pins. Don't remember which ones, its been discussed before on this board.
very insteresting...
yes i'm using the USB 500ma charger, just because past experiences has kind of though me that charging electronics with too much AMP it can burn it.
but it seems like the ATHENA can take that, since you have been using it.
I guess i'll shop around for a more powerful charger.
poppey said:
And I would like to add, that after several tests with different chargers, no doubt that using HTC chargers makes a big difference, specially the car charger.
In the case of car charger, using a normal one ( output 5V 500mA ) I made a trip of 300Km and the power level went down from 100% to 70% using TomTom.
And with the HTC charger ( 5V 2A ) leaving home with 50% and arriving the same destination with 100%, again using TomTom.
I'm assuming that using other GPS software the results will be equal.
I used car chargers with 500mA, 800mA and also 1A and I tought that the results should be different but in fact it seems to me that one thing is what the charger "says" and another thing is what can "give".
hope this helps.
Click to expand...
Click to collapse
AllGamer said:
charging electronics with too much AMP it can burn it.
Click to expand...
Click to collapse
Not true. Electronics is in many ways like the water system, with the water pressure equal to volts, and the gallons per minute equal to amps. However, there's one key difference - electronics will only use as much as its needs (and no more). Not like trying to get a drink from a high-pressure fire hose where you'll hurt yourself trying.
A 60 watt light bulb will only draw 60 watts and will not blow up even though it could draw many thousands of watts before the circuit breaker blew.
techntrek said:
Yup, 2 pins need to be connected together before the Athena will go into "fast charge mode". You could hook up a 1000 amp bench power supply but still discharge your battery with GPS active - until you short the 2 pins. Don't remember which ones, its been discussed before on this board.
Click to expand...
Click to collapse
This seems to do the trick with my Ameo.
http://www.expansys.com/d.aspx?i=154871
Hi all,
It is really exciting to see how a new device's forum gets filled up so quickly . (i'll be getting my device sometime today so I feel like a small kid waiting to go to the candy store hehe)
I did do some reading on http://www.batteryuniversity.com/ and also in different parts of the forum.
But i am not sure how this case fits in all of the battery discussions out there. If am going to drive in the states for 3-5 hours a day where i;ll need to use my phone afterwards to continue my day.
Will keeping the phone plugged in the car charger hurt the battery?
Thanks all.
The best to do in order to increase your battery's life is to let it drop to 5 or 10% then plug it on your car charger.
It will last longer then if you keep it plugged on the charger, that's for sure.
On the other hand, the average life of a battery of this type is between 1 year and 1 year and a half.
Personally I keep a second battery with me all the time.
That's what I used to do with all my previous devices so I never be short of battery
Thanks, then i guess i'll play it safe and recharge when it goes low on juice.
If i dare ask, given the scenario where you disrubt the battery while charging, would it hurt it? I read that it is better to keep it charging once plugged in, but then again this is Li-Ion which should not get hurt if you take it out while charging!
Thanks
Not charging in the car
I noticed that when I have my device pluged into car charger and use it as GPS, it does not charge or loose power. In other words, if it is half-charged when I get into the car, and I drive for 2 hours, it is still half-charged, no more and no less.
What is going all?
Thanks
Fadik said:
but then again this is Li-Ion which should not get hurt if you take it out while charging!
Thanks
Click to expand...
Click to collapse
This is correct, but for the good of the battery you need to have it down to 5% (or less) from time to time
michael_r said:
I noticed that when I have my device pluged into car charger and use it as GPS, it does not charge or loose power. In other words, if it is half-charged when I get into the car, and I drive for 2 hours, it is still half-charged, no more and no less.
What is going all?
Thanks
Click to expand...
Click to collapse
I used to have this behavior with my HTC Athena, but did not see it yet on the blackstone. I'll check in the coming days and will let you know
Hi Fadik,
I'd recommend just using your GPS and charging at the same time. Go with BigDede's advice and let it run down a bit before plugging in. This will help avoid possible overcharging.
Compare this with what most laptops are put through - permanently connected to the charger and hardly ever being used on battery. Our Dell still has more than half its capacity after three years of this. If you are still using your HD in 2 years, give a battery as a birthday present!
I don't know of anything that would damage your phone's battery during normal usage. The main battery killers are deep discharge (protection circuits turn your phone off before this point) and very high temperatures (you weren't going to leave your HD on the dashboard of the car during summer while you shop??). Oh, and the obvious, including blocking your car's wheels on a hill, providing canine nutrition, etc...
Hope this helps...
Thanks all for the feedback and input.
and I guess, I should replace the battery every year and a half
BigDede said:
This is correct, but for the good of the battery you need to have it down to 5% (or less) from time to time
Click to expand...
Click to collapse
This is a common misinformation.
Do charge the battery often. The battery lasts longer with partial rather than full discharges.
Click to expand...
Click to collapse
Avoid full cycle because of wear. 80% depth-of-discharge recommended. Re- charge more often. Avoid full discharge. Low voltage may cut off safety circuit
Click to expand...
Click to collapse
No maintenance needed. Loses capacity due to aging whether used or not.
Click to expand...
Click to collapse
All quotes from this handy table at batteryuniversity.com
So to adress the question of the OP:
Your battery will probably do just fine, as long as the pack itself does not heat up too much from the prolonged charges. The battery it self should be protected from overcharge, and tickle charge should not hurt it.
-KJ
fjevel said:
This is a common misinformation.
-KJ
Click to expand...
Click to collapse
You can stick with what you found on batteryuniversity.com
Im talking about personal experience here
I got my 2 batteries dead in less then 2 monthes on my HTC Athena
due to charging the device everyday while on 50% or more. (Actually charging it in the car, in the office at home, etc ...)
The 3rd one lasted more then a year when I was letting it drop to around 15 or 20%
Again, this is personal experience
michael_r said:
I noticed that when I have my device pluged into car charger and use it as GPS, it does not charge or loose power. In other words, if it is half-charged when I get into the car, and I drive for 2 hours, it is still half-charged, no more and no less.
What is going all?
Thanks
Click to expand...
Click to collapse
I had this same thing when charging through the USB port in the car stereo. I had to revert to the dedicated car charger providing power from the cigarette lighter socket to get it to charge.
Hello
I had some trouble in the past, charging an Ipaq in my car.
You have to check how much the device can provide.
I think the wall charger is giving 1A.
On my USB car charger it could output 750mA. Maybe that's enough to maintain battery level in the case of the HD in GPS use.
I'll check.
You can check how much your usb on your car radio/USB can provide.
But I suppose it's 500mA which is the standard level given by a PC.And that may not be enough.
Like many of you guys, I have custom built my own PC. Yeah, it's a little outdated with a Q6600 but it will do for a good year or two more. Good thing I bought a Quad Core. But anyways, getting back to topic, you guys should realize that the Power Output of the front two USB ports are not the same as the USB ports that are in the back. This is a fact as far as my system is concerned. I know because I use a Lacie External drive which will only power on with the rear USB ports.
If you charge the SGS with the included wall charger, it will charge up in about 4 hours. When I leave it on my front USB port, I would wake up in the morning only to find it 60-70 percent full.
PS - I am amazed by the battery of this thing. Here is the break down. I fully charged by 1am. Took it off... then started using it quite a bit till around 3am ish. When I went to bed, the charge was at 72 percent. I work up 6 hours later and guess what, it was at 69 percent. Pretty neat.
The USB 2.0 only requires that a motherboard provides 150mA to a single port (& 500mA to 5 ports). Where as a chargers don't conform to this standard and provides a much higher charge, which charges your battery much quicker.
Only use USB if you have nothing esle.
The wall charger that came with the SGS is a 700mA. I just ordered a 1000mA wall and car charger.
The more I use this phone the more I am amazed by it. The Battery life on this thing is really great. It's already been close to 12 hours (11:30) and the battery is now finally at 49%
I've used this phone quite a bit and the battery held up really well. I used Let's Golf, Navigation, Armored Strike, Calls, Texts, Gmail... Good stuff.
So your telling me if i get a charger with more mA it will charge faster? Where can i get a bigger mA charger.
I don't know, but my battery charges fast as hell. It goes up about 5% in 20 minutes.
mystycs said:
So your telling me if i get a charger with more mA it will charge faster? Where can i get a bigger mA charger.
Click to expand...
Click to collapse
Yes.
Mono Price is great.
Car charger (1000mA)
http://www.monoprice.com/products/p...=10826&cs_id=1082602&p_id=3523&seq=1&format=2
Wall charger
http://www.monoprice.com/products/p...=10311&cs_id=1031106&p_id=6767&seq=1&format=2
then pic a cord length
http://www.monoprice.com/products/subdepartment.asp?c_id=103&cp_id=10303&cs_id=1030307
Ebay has tons also, just search and look at the specs. You want to make sure it says 1A or 1000mA
BigWorldJust said:
I don't know, but my battery charges fast as hell. It goes up about 5% in 20 minutes.
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5% in 20mins, that's 15% per Hr, or 6.5 hrs from empty to full. You are happy with about 6.5 hrs for a full charge?
SykesAT said:
5% in 20mins, that's 15% per Hr, or 6.5 hrs from empty to full. You are happy with about 6.5 hrs for a full charge?
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LOL , kids today are inept when it comes to arithmetic but cmon...
Aight more like 10% every 20 minutes, lol. I didn't know this was a math class, sorry. It is the summer you know -_________________________________-.
will it hurt the battery life or shorten the amount of time you can use the battery if you use a higher mA? because if it wont then why didnt Samsung just include a 1000mA charger with it?
alecjake said:
will it hurt the battery life or shorten the amount of time you can use the battery if you use a higher mA? because if it wont then why didnt Samsung just include a 1000mA charger with it?
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It will do neither.
read this. Gives some basics on Li-ion batteries. link
Essentially these batts can and should be charged at 1C c=capacity. Our batts are 1500mA so we could and should charge at 1500mA.
Slower charging is fine but these batteries rely on circuitry recognizing a drop in voltage to turn the charge off, or down to a lower current as to not damage the battery. If you charge at a higher rate the drop in voltage is more obvious than with a lower voltage and harder to miss thus less chance of an overcharge and battery damage. Added bonus is the battery charges quicker
Over charging is the killer of batteries. Overcharge occurs more from circuitry missing a change in voltage and failing to terminate.
Hope this helps.
alecjake said:
will it hurt the battery life or shorten the amount of time you can use the battery if you use a higher mA? because if it wont then why didnt Samsung just include a 1000mA charger with it?
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If you were an engineer and could save the company one cent, how would you do it? That was about one cent worth of cooper in the charger times ten million devices.you just made your year end bonus.
A dedicated chip inside the phone regulates the battery charge.
SykesAT said:
Yes.
Mono Price is great.
Car charger (1000mA)
http://www.monoprice.com/products/p...=10826&cs_id=1082602&p_id=3523&seq=1&format=2
Wall charger
http://www.monoprice.com/products/p...=10311&cs_id=1031106&p_id=6767&seq=1&format=2
then pic a cord length
http://www.monoprice.com/products/subdepartment.asp?c_id=103&cp_id=10303&cs_id=1030307
Ebay has tons also, just search and look at the specs. You want to make sure it says 1A or 1000mA
5% in 20mins, that's 15% per Hr, or 6.5 hrs from empty to full. You are happy with about 6.5 hrs for a full charge?
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I just visited the links you put up and chatted with the live chat team and they have no cables currently for the vibrant ?
where did you find it on the site
thanks
HOw many mA is the charger the phone came with?
leechdweler said:
I just visited the links you put up and chatted with the live chat team and they have no cables currently for the vibrant ?
where did you find it on the site
thanks
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all you need is a USB - Micro USB cable.
mystycs said:
HOw many mA is the charger the phone came with?
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700 mA. See the info panel on the charger, it'll tell you.
So a charger with more mA will charge my phone faster i assume? I wont loose any battery capicaty right? It wil charge the same amount just faster i assume?
mystycs said:
So a charger with more mA will charge my phone faster i assume? I wont loose any battery capicaty right? It wil charge the same amount just faster i assume?
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Its obvious you didn't even bother reading 6 POSTS up. This thread isn't even a full 2 pages, stop being lazy.
So I bought my car charger (cigarette adapter + separate usb cable) from
"Mono Price".
Specs:
PID:3523 Car Charger (Cigarette Lighter) to USB Female Converter - Black
PID:5139 USB 2.0 A Male to Micro 5pin Male 28/28AWG Cable - 10ft
Very weird thing is happening, instead of charging my phone it drains it .
The battery icon moves back and forth as if it is charging but it drains my battery relativity fast.
5 mins using the car charger I lost 25% of battery life .
Does anyone know why this is happening ?
boodies said:
The more I use this phone the more I am amazed by it. The Battery life on this thing is really great. It's already been close to 12 hours (11:30) and the battery is now finally at 49%
I've used this phone quite a bit and the battery held up really well. I used Let's Golf, Navigation, Armored Strike, Calls, Texts, Gmail... Good stuff.
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How...? I am on my third Vibrant and i last 6-7 hours...
Well... I completely stopped charging my phone with the wall charger and I am now just using either my car charger or USB and i've noticed my phone over the last two days has probably doubled in being able to hold a charge. Today I made approximately 2 or 3 30 minute - 1 hour calls, used the internet approximately 20 times for about 5 minutes each time and used SNESnoid for approximately 1 hour straight and my battery was at 40% after a 10 hour work day, not too shabby. Not to mention I also don't get that annoying 10% drop within 10 minutes of unplugging the phone anymore
I've seen a ton of other battery tip's but I've yet to see any actually say stop using a wall charger all together. Here's to hoping this helps someone
Lol thanks for the tip. I highly doubt this is anymore then a placebo but good luck to whoever tries it. Not calling you OP I am just finding it hard to believe.
Furthermore, have you tried reseting your battery stats. I mean the initial 100-90 percent drop you are calling to quick sounds like its the fault of bad battery stats. If you need a link to how to reset your battery PM me only because I might not check back to this post lol.
DirtyShroomz said:
Well... I completely stopped charging my phone with the wall charger and I am now just using either my car charger or USB and i've noticed my phone over the last two days has probably doubled in being able to hold a charge. Today I made approximately 2 or 3 30 minute - 1 hour calls, used the internet approximately 20 times for about 5 minutes each time and used SNESnoid for approximately 1 hour straight and my battery was at 40% after a 10 hour work day, not too shabby. Not to mention I also don't get that annoying 10% drop within 10 minutes of unplugging the phone anymore
I've seen a ton of other battery tip's but I've yet to see any actually say stop using a wall charger all together. Here's to hoping this helps someone
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Hmmm... I don't think that USB/Wall would actually make a overall difference in battery life but it could be that it doesn't "idle the charging" when you hit close to a full charge. So you're probably just getting the extra 5-10% that you mentioned.
twilk73 said:
Lol thanks for the tip. I highly doubt this is anymore then a placebo but good luck to whoever tries it. Not calling you OP I am just finding it hard to believe.
Furthermore, have you tried reseting your battery stats. I mean the initial 100-90 percent drop you are calling to quick sounds like its the fault of bad battery stats. If you need a link to how to reset your battery PM me only because I might not check back to this post lol.
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Ehh... I don't make BS threads, never have and those that know me from the Hero forums can vouch. Just posting my findings
Award Tour said:
Hmmm... I don't think that USB/Wall would actually make a overall difference in battery life but it could be that it doesn't "idle the charging" when you hit close to a full charge. So you're probably just getting the extra 5-10% that you mentioned.
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I know for a fact im getting the initial 10% but I looked at my battery today at 12:40 tonight before leaving work thinking "ahh crap I haven't charged it it's got to be at, at least 5-15% and nope, it was exactly 39%, I was amazed. Talked to a girl for about 40 minutes on my drive home, talked to another friend for 5 and battery dropped to 35%
I've noticed this as well. Days that I've only used my moto car charger, the battery (even the cheap ebay ones) seem to hold the charge better, which I thought was strange, because you would think it would be a worse -maybe equal- change.
Charges more slowly and fills up more?
oOflyeyesOo said:
Charges more slowly and fills up more?
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That's my theory
This is the case with most batteries, and I thought it was common knowledge with Li-ion. The lower the current you charge with, the better the charge.
Using the higher amperage wall charger lets you hit the voltage peak quicker but, the topping charge will take longer. A lot of car chargers are just as high amperage as wall chargers.
Other things you can do to try maintain the capacity of the battery over the course of its life:
-NEVER let it get hot (whether from heavy usage or keeping it in a hot car or the sun)
-never deep cycle (totally kill the battery)
-try to keep it between 40 - 60% charge for most of its life (Li-ion batteries do not like being at full charge or no charge)
Doing any of these things once will not destroy the battery, but by the 500th charge cycle, you can bet your ass it will.
http://batteryuniversity.com/partone-12.htm
DirtyShroomz said:
2 or 3 30 minute - 1 hour calls
internet 20 times
SNESnoid
...
work day
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Sounds like my kind of job! Seriously, I use USB (through a laptop) and car chargers almost exclusively and I have no real complaints about battery life. And by that I mean it gets me through the day, which is all I've come to expect from phones for the past few years. But I did happen to use a wall charger last night, and I have JuicePlotter active, so I did some checking.
Comparing my last overnight charge using my laptop's USB to last night's charge through a wall adapter, I found that the charging was actually faster through the laptop. I see that the charge tends to drop off as it approaches 100%, so I took pairs of points from uniform sections of each plot for my comparison:
Laptop USB:
44% to 82% in 41 minutes = 0.927% / min
Wall:
63% to 91% in 37 minutes = 0.757% / min
kzibart said:
Sounds like my kind of job! Seriously, I use USB (through a laptop) and car chargers almost exclusively and I have no real complaints about battery life. And by that I mean it gets me through the day, which is all I've come to expect from phones for the past few years. But I did happen to use a wall charger last night, and I have JuicePlotter active, so I did some checking.
Comparing my last overnight charge using my laptop's USB to last night's charge through a wall adapter, I found that the charging was actually faster through the laptop. I see that the charge tends to drop off as it approaches 100%, so I took pairs of points from uniform sections of each plot for my comparison:
Laptop USB:
44% to 82% in 41 minutes = 0.927% / min
Wall:
63% to 91% in 37 minutes = 0.757% / min
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Click to collapse
Hah, yeah my job is pretty amazing sometimes but I have def quit using the wall charger (unless I absolutely have nothing else around)
As far as for droiddev... this is my first phone where charging it from different devices gives me different results. I don't see where it would be common sense, Li-ion batteries are not supposed to not have these memory leak/hold issues like past batteries. A charge is a charge to li-ion batteries, but not in this case.
DirtyShroomz said:
As far as for droiddev... this is my first phone where charging it from different devices gives me different results. I don't see where it would be common sense, Li-ion batteries are not supposed to not have these memory leak/hold issues like past batteries. A charge is a charge to li-ion batteries, but not in this case.
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Not sure what you mean, but you will get the most life out of your battery by charging it short spurts at a time over USB. Read the article I linked to and you will see what I mean, but you can get the best charge into your battery by slowly ramping up in steps with a low current charger.