I have heard bad things about a few of the battery extenders. Some not having proper charge protection and some just not working. I was thinking of getting something like this:
http://www.thepocketsolution.com/PSI-34231/HTC+Kaiser+AA+Battery+Booster.html
Anybody have any input. Going to Vietnam and it would be nice to have something to charge the battery.
I have the one you linked to, and it works great. Get some good rechargeable AA batts and just keep it handy.
Related
Where can I get a high capacity battery for the XDAII?
something like a 2400mAh would be ideal, do they exist?
Been browsing this foum for a while now. From everything I have read, as of now there is no extended batteries for the XDA II available. If there ever is I would imagine it would make quite a deal (hint hint manufactures) on this forum so I would check back.
As of now the closest thing to that is the CF backpack w/ 600 mAh battery built in. Would give you another 50% longer battery life + CF and VGA/TV out. Kinda spendy though.
As much as I hate eXpansys it was the fastest link to the info on the backpack I could think of...
http://www.expansys-usa.com/product.asp?code=108741&asource=106055
I've been searching for one too,
The backpack makes the device too bulky for me, my solution is to just carry a spare battery and swap it over when needed
Cheap and simple!
I do it like Mosser. Thanks to my Piel Frama case I even have it always on hand
I carry a 2nd battery when I know I'm going to be away from power outlet, car or USB port for an extended time and also use the BackPack with a CF WiFi card for surfing as that consumes more power anyway.
Ed
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.
Anyone ever use one of these?
http://cgi.ebay.com/NEW-EMERGENCY-A...ryZ48492QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Please comment on:
1) how fast they charge
2) how much they charge the phone
thanks!
The kaiser battery is rated for 3.7 volts and the battery that device uses is 1.5 volts. It would charge at the same rate, but drain the AA very quickly. The cost of the batteries it would take to power that thing would quickly outweigh the benefits it would produce. If it had 2 AA wired to it then it might be remotely useful. I mean if you absolutely cant survive if your phone dies, then yes it would give you enough battery life to keep your phone going for a few hours.
Yeah...well I bought two cheapo spare 1600mah batteries of ebay with the thought of carrying one around with me to swap out if needed....but I was considering getting one of the 2-piece rubberized cases for my phone. In that case, the battery compartment I believe will be inaccessible and I don't want to snap off the back case constanstly and wear down the integrity. Therefore I thought something like this might be a good option.
Even with free access to the battery door, I would think opening it up on a regular basis to swap batteries isn't good for it (would get loose, etc...).
Motorola P790
Well, I used Motorola P790 and it is pretty good, rechargeable. I can recharge it together with my phone with one charger. It gives abt 30% recovery of your battery in abt 2 hr.
rovanesyan said:
The kaiser battery is rated for 3.7 volts and the battery that device uses is 1.5 volts. It would charge at the same rate, but drain the AA very quickly. The cost of the batteries it would take to power that thing would quickly outweigh the benefits it would produce. If it had 2 AA wired to it then it might be remotely useful. I mean if you absolutely cant survive if your phone dies, then yes it would give you enough battery life to keep your phone going for a few hours.
Click to expand...
Click to collapse
Not really, these units have a small switching power supply which boosts the voltage to be able to charge the phone (if you look at the picture you can see the copper inductor coil for the oscillator circuit inside the top clear piece), a Kaiser won't charge with an input voltage under 5 volts.
I don't know how long it takes to charge, but I doubt that you can get more than 1 good charge from a fresh battery.
I've had all sorts of charging problems recently. With the Wifi, GPS & Phone on it would use about 500ma of power. But if I was running SatNav it would actually use about 850ma.
What I've done is twofold. I've bought a 2700ma internal battery for the phone and I've got a 12-24v charger that puts out 2a (2000ma) and so far it has kept the device fully charged, even with Bluetooth running!
I'm not sure how to gauge the 2700ma battery as I've only been running it a day. I think it needs a bit more of testing before I use it full time without the spare, but it's also good to have the spare....
Is there currently an app available to toggle whether the phone will charge when plugged into a usb port.
This is because the best way to get max battery life is by, charging the battery only when it is on low, 1-10%. Continuosly charging the battery even when full or close to full, severely affects the battery usage time and battery life.
This is a problem because i regularly mount the sd card and flash roms and updates
What would be good is an app that can leave charging off till the phone reaches somewhere below 10% or 14 % or something then automatically activate charging. this would be good for when the phone is still on 45% or something just before i go to sleep. So don't have to worry about degrading the battery life while still starting the day with 100%, or something else to fit that purpose.
Eh, you are incorrect. Li-ion batteries should not be completely discharged. Especially not below like 10%. You don't want complete discharges. It's one of the main things that affect battery life in a negative way.
I always keep my battery above 30%-40%.
Anyway, search in Google how to use Li-ion batteries. And how to prolong its life. A site called battery university is a good source of info.
What you describe is how you should treat a NiCad battery or a NiMh to some extend. Those are different and somewhat older battery technologies.
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I dont get why anyone would do this.
Its a cellphone, i want to be fully charged whenever i go into 'the field' so i dont have to worry about power where there is no power :-\
By the time my battery life is very low I will buy a new one, theyre cheap nowadays, with twice the mAh :-D
But good luck on your quest
Also, why not just use the builtin default option for usb plugged in?
So it always mounts the sd card with usb
Then you would have to manually put it in charging mode but its better than nothing i suppose :-D
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Oh ok Thnks
Do you guys know of any negative effects of charging the battery when it is still high 70 - 80%ish. Cuz i remember reading this somewhere. Or is it just some sort of misconception?
thanks again peeps
The only reason would be that the onboard chip that estimates the % is giving out wrong information. So it would look like your phone goes empty faster, but in reality it's just the chip that's not calibrated.
And when storing the battery for a longer period it's better to keep the batteries around 50%-60%. But that's not really something you would have to worry about with the Desire lol
Apparantly how fast you charge the battery can also influence the lifetime. Like charging it with 500mah or 1000mah. (or more like charging it 1C or 2C-3C). Also not something you have to worry about.
Anyway, it's like huleboeren says really. For around €10 - €15 you can get a new battery. Or by the time you really need a new battery you most probably have a new device already.
I received the Verizon quick charge bundle yesterday. Quite a deal for the battery, the car charger and the new slanted Samsung wireless charger. It seems like the wireless charger is pretty snappy, but with no replaceable battery, what will using it do to the long term battery life of the S7E?
Is it OK to use it whenever? Like frequently putting the phone on the stand to get it from 90 to 100%? Or leaving it on the stand all day or all night? Any tips on how the wireless quick-charging technology works and its effect on battery life would be much appreciated. Thanks.
I don't remember exactly which thread but someone mentioned that fast charging would also negatively affect the battery over time due to killing the battery cells. Might be in the battery life thread..I slow charge mine overnight and only fast charge using my car charger.
More info here
http://batteryuniversity.com/learn/article/ultra_fast_chargers
maybe thats why even sammys fast changer is not very powerful??..