I do not understand this wireless charging craze. Do people not know how much energy is wasted with this technology?
Thr Fascinate doesnt even use wireless charging, whats the point of this thread. You cant stop innovation, its always going to get better.
Sent from my Fascinate with CM7 Gingerbread
AuroEdge said:
I do not understand this wireless charging craze. Do people not know how much energy is wasted with this technology?
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Despite the wasted energy, it is much more convenient. Get a wireless charging setup, get home, and set your phone down and it charges. Much easier than plugging it in. Then if you have to run quick, you can just pick up your phone and you don't have to worry about damaging it from a cord being yanked out.
AuroEdge said:
I do not understand this wireless charging craze. Do people not know how much energy is wasted with this technology?
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Agreed..it takes a whole 5 extra seconds to plug and unplug. Not to mention that your phone is pretty much useless while charging on an inductive charger.
Apples new approach is kind of neat, but you'd have to leave your computer on all the time.
Sent from my SCH-I500 using XDA Premium App
I used it with my palm pre plus and it was a great experience overall. The phone still fully worked for me while on the touchstone.
I could see it being very useful if say you worked in an office environment and were a heavy user. When not using set it down on the charging matt and when you need it pick it up.
The system made by Duracell (a little bulky) uses conductive rather than inductive transfer of energy. Not only does it charge as fast as a usb charger but there is no more waste than a regular plug in charger.
Related
I just have one question. Why does it take so long to charge from 10% to full? It takes my incredible about 2 hours and 15 minutes to charge, my moto droid 1 hour.
Wrong Thread
Doesn't belong in the Dev. thread. As for your question.... your comparing apples to oranges. Mine takes about as long... so I don't think it's you. Probably the way the phone was designed.
dreamersipaq said:
Doesn't belong in the Dev. thread. As for your question.... your comparing apples to oranges. Mine takes about as long... so I don't think it's you. Probably the way the phone was designed.
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agreed on both points, 2 hours seems pretty reasonable to charge IMO
Yeah
br125 said:
agreed on both points, 2 hours seems pretty reasonable to charge IMO
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People forget that back in the day it used to take 4 - 6 hours to charge your device, and it'd drain after about 3..... spoiled brats! LOL
Sorry I didnt mean to put the thread in the wrong place but this section seems more tech than others. Yea I figured it wasn't just my phone, I just wondering why HTC phones took longer to charge. Thanks for the help
The way Li-Ion batters are charged is not as simple as alkaline or NiMH - cell balancing, over voltage, under voltage, temp, authentication, etc.
You wouldn't want this to happen: http://www.youtube.com/watch?v=QJCZ4ayioCU
sounds like you are the type of guy who would complain about having to put premium fuel in his ferrari. one droid and inc are 2 totally different pieces of hardware. if you had reliable data to support a claim like htc phones take longer to charge then i might believe it, but u dont so dont make that claim. i have a blackberry storm (business phone) and inc (personal) i literally almost never use the BB and if i do its for calls lasting less than 10 mins. Yea it charges faster than my inc and yea the battery lasts longer, but i do way more on the inc and that takes battery and charge away. when i used the BB for everything before i got the inc, it was the same situation. so does that mean bb take a long time to charge or the battery sucks? no
UGH...
socalracer said:
sounds like you are the type of guy who would complain about having to put premium fuel in his ferrari. one droid and inc are 2 totally different pieces of hardware. if you had reliable data to support a claim like htc phones take longer to charge then i might believe it, but u dont so dont make that claim. i have a blackberry storm (business phone) and inc (personal) i literally almost never use the BB and if i do its for calls lasting less than 10 mins. Yea it charges faster than my inc and yea the battery lasts longer, but i do way more on the inc and that takes battery and charge away. when i used the BB for everything before i got the inc, it was the same situation. so does that mean bb take a long time to charge or the battery sucks? no
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Was that necessary? Yes he asked a question in the wrong forum, yes it was a poorly worded/thought out question but seriously? Just made yourself look like a big douche...
Just sayin'
The way you use the phone has nothing to do with how long it takes to charge. Could be different voltages for the two phones. The lower the voltage, usually the longer it takes to charge. You'd have to look at your adapters and see what the output voltage is on the Inc. vs Moto. Might answer your questions. Otherwise, it's probably how the trickle charge works differently on the two phones....
**DO NOT USE A HIGHER VOLTAGE CHARGER** !!!!
Also if you have a TON of stuff running on your phone, it could be a lot less "idle" than you think while it's charging.
I think the trick is to charge your phone at the perfect times - like while you are driving to work (especially if it's a long drive) or while asleep. Who cares how long it takes while you are asleep??
Droppin' some science!
This is just technical information for anyone that may be interested, I don't know if it will exactly "help", but it should answer the question of the post (also please keep in mind that these are two phones from two different manufacturers so even if they are running the same OS, the way they manage and consume power would be different regardless).
Motorola Droid (Stock)
Lithium-Ion Battery
1400 mAh
3.7 volts (Output)
HTC Incredible (Stock)
Lithium-Ion Battery
1300 mAh
4.2 volts (Output)
For tips on improving the battery life of an Incredible, there is a highly detailed forum post at AndroidForums.com
i wish my incredible would charge in 2 hours at 10%. My DI takes 4 hours to charge. very sad
moosc said:
i wish my incredible would charge in 2 hours at 10%. My DI takes 4 hours to charge. very sad
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Using the stock wall charger?? Don't think mine's ever taken 4 hours
Yep use the stock wall charger and data cable.
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Sent via the XDA App
moosc said:
Yep use the stock wall charger and data cable.
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Sent via the XDA App
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You don't want to charge with the data cable. It's intended to only maintain battery life when tethered, not charge it.
aibrean said:
You don't want to charge with the data cable. It's intended to only maintain battery life when tethered, not charge it.
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well its the cable that comes in the box.
aibrean said:
You don't want to charge with the data cable. It's intended to only maintain battery life when tethered, not charge it.
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Huh?
The data cable is what comes in the box with the AC head (which has no cable but a USB connector).
I use the same data cable connected to a number of different computers, notebooks and netbook and charge all the time.
When connected to a computer, it is slower to charge, but it charges just fine.
krelvinaz said:
Huh?
The data cable is what comes in the box with the AC head (which has no cable but a USB connector).
I use the same data cable connected to a number of different computers, notebooks and netbook and charge all the time.
When connected to a computer, it is slower to charge, but it charges just fine.
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I think he means that he's using the cable with the AC head, and it takes 4 hours (as in, he's not using some off-brand charger from Radioshack, or something like that).
My DI definitely takes longer than 2 hours as well, Not sure the exact %'s, but at home today had it plugged in from when I woke up until I left for work (about 2 hours) and it seemed like it went roughly from 10% to 80% only.
dreamersipaq said:
Was that necessary? Yes he asked a question in the wrong forum, yes it was a poorly worded/thought out question but seriously? Just made yourself look like a big douche...
**DO NOT USE A HIGHER VOLTAGE CHARGER** !!!!
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All kinds of misinformation on this thread. Any charger that complies with USB standards is going to be 5V, no more no less, whether it has a microUSB tail on it, no tail, or a rat tail.
aibrean said:
You don't want to charge with the data cable. It's intended to only maintain battery life when tethered, not charge it.
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krelvinaz said:
Huh?When connected to a computer, it is slower to charge, but it charges just fine.
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Exactly. PC/LAptop USB power is just as good as wall-power, it's just a lower amperage, something like 500mA to the AC head's 1A/1000mA. More amps means faster charge.
I believe our DI batteries are 3-cell, judging by the four terminals on the battery: 1 (+)power, 2 (+)power, 3 (+)power, 4 (-)common ground. I don't know what sort of battery the Moto Droid has but it's a motorola, so it's gonna fail soon anyway (sorry, I'm just sayin). I know the G1/Dream battery was 3-terminal, and when some went to a Seidio 2600mAh extended battery (twice as many cells), they had to charge it 8 hours when they first got it.
Obviously, turning the phone off to reduce the load on the battery, using the wall charger, and making sure you're not short-charging all the time will reduce charge times overall. Judging by the battery life I've gotten so far and what a monster this phone is compared to my G1s, I'm more than happy to wait an extra hour with the phone off, that's what Google Voice is for
Do you think it would be safe to charge the evo with a 2.1 amp car charger? I found one on ebay that says its made for the iPad but I would love a faster charge on my epic.
In general, the slower you charge the battery, the longer it will last. The effect is pretty significant.
I don't know if that much current is safe.
http://www.batteryuniversity.com/parttwo-34.htm
Sent from my SPH-D700 using XDA App
It's more complicated than that. Just because the charger is able to provide 2.1A doesn't mean the phone will actually draw that much current.
The charge control circuitry is built into the phone. You are just providing a +5V rail as the charging power source via a standard USB connection. There is no charge control inherent in USB itself.
Sent from Samsung Vibrant
It will only pull as much as it needs. I use higher amp output chargers and it's not a problem. It will charge faster, regardless of what you use, if you turn the phone off.
jnadke said:
In general, the slower you charge the battery, the longer it will last.
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Bingo.
Being an Aerospace Electrical Engineer I approve of this message.
jnadke said:
In general, the slower you charge the battery, the longer it will last. The effect is pretty significant.
I don't know if that much current is safe.
http://www.batteryuniversity.com/parttwo-34.htm
Sent from my SPH-D700 using XDA App
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this is true, but the effect is not that significant, coming from using lithium packs in rc helicopers and cars, the battery will likely be obsolete before you kill it and the batteries aren't that expensive.
kerms said:
Do you think it would be safe to charge the evo with a 2.1 amp car charger? I found one on ebay that says its made for the iPad but I would love a faster charge on my epic.
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do you have a link and is there a wall charger too? I run a remote desktop app and it destroys the battery, even with the 1 amp charger going the battery just gets lower and lower.
robl45 said:
do you have a link and is there a wall charger too? I run a remote desktop app and it destroys the battery, even with the 1 amp charger going the battery just gets lower and lower.
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It could be due to the usb micro charging standards... Many chargers do not adhere to the standard, and this may cause some of the newer phones (droid X, galaxy S phones) not to charge at full power. Most older phones simply did not care, and would use all the amperage they could get their hands on.
Basically, if the D+ and D- pins of the USB cable are not shorted, then the device will draw minimal power from the +5v rail. It is probably drawing <500 mah, and could even be drawing as little as 100 mah from the charger.
Getting a proper 1A charger could fix this, but I'd like to test it out myself when I get the chance..
http://www.griffintechnology.com/products/powerduo-for-ipad
These work good. I use the ac one. Only thing is, like some have stated, even when charging when phone is on and using the phone, the battery will still go down. Maybe 2.2 will fix this or a patch.
I'm not going to debate fast vs slow charging. This isn't like debating what is the best charger for AA rechargeable nimh, fast or slow or charging method.
before signing up for another data line, was wondering if i can use a otg cable and stick a 3G usb stick to use data on the go
would this thing drain my battery too quick if it does work?
any experience and input are appreciated.
Might be better to get one of those mobile hotspot things where it has it's own battery...if you can. I would guess even if it can work, it would drain your battery very quickly.
Sent from my Nexus 7 using Tapatalk 2
In theory it could but in practice it wouldn't be viable. Better off tethering if you can.
Sent from my Nexus 7 using Tapatalk 2
thanks all, i tend to tether so much that i wind up with a dead battery on my phone when i am on the road
i'd suppose i can get another cheap 3G phone for tethering only thanks!
U can otg--- > USB cable--->phone.... I found my n7 will charge my thunderbolt for situations where I can't get to a car or ac charger. Haven't tested what a full charge would take timewise/toll-wise on n7 and I would assume your phone battery might keep draining even while leeching power from the n7 if you are tethering and using heavy bandwidth
wtfmate913 said:
U can otg--- > USB cable--->phone.... I found my n7 will charge my thunderbolt for situations where I can't get to a car or ac charger. Haven't tested what a full charge would take timewise/toll-wise on n7 and I would assume your phone battery might keep draining even while leeching power from the n7 if you are tethering and using heavy bandwidth
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well.....wouldnt that drain your tablet then? lol, kinda defeating the purpose now
Yes troll it would drain your tablet but not as much as a 3g dongle through USB. Did you even read the thread? What do you think the "purpose" is? I didn't say its ideal I said for situations where your phone is about to die from tethering and you need a little charge. Just trying to help.
Since wii're throwing out ideas, I picked up a 5000mA battery charger for $25. It was on sell, so don't expect that price. My Nexus 7 doesn't accept the charger for some reason, but my phone would charge from it. So you can tether and always be able to charge your phone. The thing I have is about the size of a MiFi thingy. LoL!! I think they're going for about $60+ now. Since my E4GT has a 1800mA battery, I technically have 3 batteries with a remainder of 1400mA. That's practically 4 batteries. LoL!! =.P
I bought something "like" this. Looks very much alike except it wasn't from China and it had a 1A and 2.1A port. And I have no idea where "solar" is even coming from. The one I have has nothing "solar" about it. LoL!!
http://www.ebay.com/itm/New-5000mA-...ccessories&hash=item2c650dd34a#ht_2856wt_1197
wtfmate913 said:
Yes troll it would drain your tablet but not as much as a 3g dongle through USB. Did you even read the thread? What do you think the "purpose" is? I didn't say its ideal I said for situations where your phone is about to die from tethering and you need a little charge. Just trying to help.
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Obvious asshat is obvious. The guy points out a fatal flaw in your thinking and suddenly he becomes a troll? You need to brush up on your definition of troll.
I haz no sig
No_Nickname90 said:
Since wii're throwing out ideas, I picked up a 5000mA battery charger for $25. It was on sell, so don't expect that price. My Nexus 7 doesn't accept the charger for some reason, but my phone would charge from it. So you can tether and always be able to charge your phone. The thing I have is about the size of a MiFi thingy. LoL!! I think they're going for about $60+ now. Since my E4GT has a 1800mA battery, I technically have 3 batteries with a remainder of 1400mA. That's practically 4 batteries. LoL!! =.P
I bought something "like" this. Looks very much alike except it wasn't from China and it had a 1A and 2.1A port. And I have no idea where "solar" is even coming from. The one I have has nothing "solar" about it. LoL!!
http://www.ebay.com/itm/New-5000mA-...ccessories&hash=item2c650dd34a#ht_2856wt_1197
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Do solar powered battery packs like that even exist?
So with my phone, I absolutely have to tether all day.
does anyone know the inductive charge rate for the nexus 4 wireless orb??
would be awesome to have the charger charger faster than what the phone would use tethering.
Love the inductive charge idea as i'm currently plugging/unplugging all freaking day at my desk.
Someone in another thread mentioned that the orb is, unfortunately, slower than connecting directly via a wire. It's more just for ease of access.
Yes. Its for ease of access. Of course its going to be slower. Same as WiFi vs Ethernet. Wired is always going to be quicker but wireless makes life simpler
I can't remember where I read this or if I'm just making it up but the wireless charging should be at about 60% efficiency.
Meaning 1hr of wired charging would be equal to just over an hour&half of orb charging
Sent from my HTC One X using xda app-developers app
yeah. i just want the battery to charge faster than what the phone uses.
i guess there is only one way to find out! lol
I've never used tethering so I don't know how fast it eats battery, but chances are the charger will charge faster than the battery drain..
Considering rule of thumb current large screen phones break even USB charging, I would assume wireless charging is at very least faster than USB or we would hear about wireless charging being slow a whole lot more.
MatAuc12 said:
Considering rule of thumb current large screen phones break even USB charging, I would assume wireless charging is at very least faster than USB or we would hear about wireless charging being slow a whole lot more.
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The orb base has a usb mini b connector to supply it power, so the orb is receiving the same voltage the phone would. And induction is inefficient, so it will probably charge slower. Unless the orb is drawing more amperage than the phone would to make up the difference. I would expect it to be slower.
It would be more so how much current is passed through the magnetic fields. 5V is 5V. It just depends on how fast the 5V's gets pulled into the battery.
I imagine that, with the screen off, it should charge more than is drained. Even if it was an overall negative differential, it should slow the drain down enough to keep you going all day.
That said, this is about as bad of a worst-case scenario as you can get for long-term battery performance.
MatAuc12 said:
Considering rule of thumb current large screen phones break even USB charging, I would assume wireless charging is at very least faster than USB or we would hear about wireless charging being slow a whole lot more.
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My Palm Pre and Touchstone charging was noticeably faster than charging off a computer USB port, but still slower than wall charging (1A). So I would think wireless charging will be fine while tethering, as long as the screen is off.
I remember reading somewhere that the charge rate of wireless charging is 1.5A. I'm pretty certain.
Sent from my HTC One X using xda premium
---------- Post added at 10:07 AM ---------- Previous post was at 10:04 AM ----------
Ah it was here: http://forum.xda-developers.com/showthread.php?t=1964850
Warning: When I make this post, I have no intention of being rude. Moving on.
Lately I've seen lots of posts like, "Wireless charger, cheap on Amazon!" and "Wireless charger, 40$!" Ok, thanks for finding these things for us! But is wireless charging practical? Why is wireless charging being made such a big deal? Persononaly, I cant justify avoiding the phones intended function, just to charge wirelessly. Not to mention, I have to pay 40+$ for said wireless charger. I mean really, is it that important to "preserve the USB port"? On the other hand, I do think wireless charging is a neat idea, but only that.
So I guess my question is, are there reasons that make this worth my money? What are they?
Sent from my Nexus 4 using Tapatalk 2
Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.
It's great that Google included it for those who have a use for it but I have to say I'm with the OP. It just doesn't make much sense to me to have to buy an expensive device that takes up space to save a few seconds spent plugging the device in once a day. Different strokes for different folks, eh. Plus I'd have constant paranoia about whether the device was actually going to keep charging while I sleep (irrational, I know. Nobody said I had to make sense.) That's why we love Android (or not, for the trolls lol)
nbell13 said:
Laziness and neatness for me. It's less work to place it on a wireless charger than to have to find the usb cable and plug it in. Plus it eliminates the eyesore of having an unplugged USB cable right next to my bed all day.
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Yeah, I guess that's reasonable... But is it really worth 40+$ to save yourself a few seconds everyday?
Sent from my Nexus 4 using Tapatalk 2
Alot of Nexus 4 users upgraded from the Gnex. The Gnex had a horrible USB port. If you go to the Gnex Q&A section and search for bad USB port you will get easily over 100 threads. And although the Nexus 4 is obviously a different manufacturer, it was enough to make us paranoid. Add the paranoia to the fact that wireless charging is just cool new technology definitely makes it worth $50 TO SOME people.
I like cables. Seriously. Cheap and reliable. But that's just me.
I think the idea of them is great, but they just aren't for everyone. I'd love one, for the visuals but in all honesty, I have no reason to own one. For one, I don't even have a good surface I could put it on, most of them have something on or are not near a plug socket.
The wireless charging orb from Google advertises charging the Nexus4 in 4 hours.
In my experience the wall charger does it in about 2 hours.
I've been using my Nexus4 for navigation in my car. A car mount with wireless charging
indeed sounds great - plugging and unplugging the USB port in the car is uncomfortable.
But I discovered that with the GPS on and the screen at high brightness the phone
can not be properly charged with a 0.5A car lighter adapter. 2A ones do work.
So I wonder if a wireless charging car mount is even a possibility. It is questionable whether it
can pump the necessary power to run the phone in such a demanding application.
Mind you my setup can get pretty hot at times on the USB and it's the dead of winter in here.