HTC Droid Eris :: Building An External Battery Pack
Jun 12, 2010
I think the standard battery is 1100mAh (1.1 amps at 3.7V for one hour), which is generally good enough for me, but there have been a few times on travel when an extended battery would have been useful. USB provides 5 (FIVE) volts to the unit, which is regulated down to charge the internal 3.7V single lithium cell. It should be trivial to build a battery pack to recharge any product that is so powered. But you cannot use external lithium because that would also be 3.7V.
I'm thinking of NiMH (nickel metal hydride), each cell of which provides 1.2VDC. Four cells in series would be 4.8V, and there are now 3000mAh (three amp!) AA cells out there, so NiMH AA cells should more than triple battery life for the Eris. Of course, you could use five such cells to get 6.0VDC, then regulate down to 5, but that would add complexity. I didn't find any posts on building such a thing, and wonder if anyone's done it.
View 6 Replies
Jun 26, 2010
Primo Battery Cube for SmartPhones. I'll be getting one of these when they are available in the UK.
View 5 Replies
View Related
Feb 6, 2010
Does anyone think that this external battery would work on the Eris for an extra battery? It has the same connection. DealExtreme: $12.99 1800mAh USB Rechargeable External Battery Pack for HTC Touch Diamond.
View 1 Replies
View Related
Dec 17, 2013
I got into building roms from source recently for the i9100, all the ones I built so far, had no issues with the device, I built LiquidSmooth rom and it boots great and everything work but the sd cards, where I can locate the code for this in the source and why its happening?
View 1 Replies
View Related
Jan 21, 2010
My fiance has already gone through 2 Droid eris well he is on his second one. He had to bring the first one back due to his external speaker sounded blown, and now the replacement one he got is doing the same thing. We were wondering if this is a popular problem and if the next replacement he gets Saturday is going to do the same thing all over again. He never uses the external speaker only for the message alerts. We are both stumped onto why the same thing would happen to both phones. I have the same phone and mine hasnt done it I do have mine on vibrate a lot more then his.
View 1 Replies
View Related
Aug 7, 2010
Amazon.com: Genuine Motorola Droid P323 Battery Charger System: Electronics Amazon.com: Motorola BP6X A855 Droid OEM 1300mah Standard Battery: Cell Phones & Service Anyone use these 2 items from Amazon? I'd like to get a second battery and an external charger, this seems like a cheap solution while keeping OEM parts. The only thing I'm really questioning is the voltage output of the external charger to the battery. Any way to tell if it will charger correctly? If you know the answer, please provide reasoning.
View 8 Replies
View Related
Aug 23, 2010
I need a link for the google app pack so i could start using my roms normally.
View 1 Replies
View Related
Aug 4, 2010
Does anyone know where I can get a replacement external speaker for my Eris? Need two, actually. Only place I could find one was at global parts direct, but they're out of stock.
View 6 Replies
View Related
Mar 10, 2010
Are their any options for any form of external full-sized keyboard for the Eris? It'd be nice to have just one electronic device to bring to school to take notes on. Oh, I don't know if this matters, but I'm still on 1.5.
View 3 Replies
View Related
May 26, 2010
I am planning on getting the EVO come June 4th to replace my HD2, and I am wondering if there are any solar chargers available on the market for this unit. Since I will be having a case on the unit, I dont want to be having to open the back cover all the time to replace the battery whenever its dead. maybe a good external battery backup might do the job.
View 15 Replies
View Related
Nov 7, 2009
Big selling feature for the Moment over the iPhone is swapable batteries. I'd like to keep the phone with me at all times, and just swap in batteries. But I can not find an EXTERNAL battery charger. Google search only turned up a "universal" charger where the contacts are manipulated to match up with the battery. Not a good option. Anyone have a source for an external battery charger which I can use to charge spare batteries without using the phone?
View 49 Replies
View Related
Feb 8, 2010
I posted this at another forum as well. I am not spamming, I just want to sell this because I no longer need it. I'm not sure if this is in the correct area, I am sorry if it is in the wrong area, but I am selling an Eris battery that I bought as an extra. I swapped out to a Droid and forgot about the battery. It was put on our bill, so it's paid for and I would like to pass some savings on to a member here. I only used this battery twice, two days. Asking $25.00 with shipping included to US addresses only. Paypal only on this as well.
View 3 Replies
View Related
Sep 11, 2010
I'm using Desktop Visualizer and downloaded iBox icons. Go to create shortcut>DV>Icon>Icon Pack>No icon pack detected.
View 7 Replies
View Related
Dec 27, 2009
Can someone recommend a silence toggle switch that is not part of the Beautiful Widgets Pack. I like the one in that pack but it is no longer on the market.
View 2 Replies
View Related
Jun 1, 2010
I want to create language pack for android. How can I do this. If anyone knows how or where to find info about this topic please share your knowledge. I'd appreciate any pointers to the right direction.
View 1 Replies
View Related
Aug 21, 2010
How do get these to work I tried using better cut but can't figure it out [Icon_Pack]. The Droid Collection_v1.0-xda-developers.
View 4 Replies
View Related
Sep 10, 2010
R2-D2 DROID 2 Wallpapers Pack. Another day, another leak from the special edition R2-D2 Droid 2. Download Here. So you should now have the official boot animation, live wallpaper set, and now the static wallpapers. Is there anything else you can think of?
View 4 Replies
View Related
May 4, 2010
What's the best navigation for Android phones with good maps pack. I never used navigation, but I must go on the long trip so google maps is not the option.
View 6 Replies
View Related
Mar 3, 2010
Forgive me if this has been addressed somewhere but there's a ton of threads that say 3g and battery so I couldn't find what I was looking for.Anyway, WHY does 3G use so much battery? I can see why if I'm on the internet or downloading files etc but when it's simply on in the background not doing a thing, why does that drain the battery so much??
View 2 Replies
View Related
Apr 6, 2010
The Eternal Speaker plays forever. I never noticed it before today, but my Eris is definitely not disabling music playback through the eternal speaker when I plug headphones (or an adapter, or anything) into the headphone jack. Sound still comes through the earbuds or headphones nice and crisp, just the speaker is ALSO playing the same sound, at the same volume.
This sort of defeats the purpose of one of the main reasons I use headphones- to mute sound for everyone but me. I tried different music players, different headphones, made sure the phone knew they were non-mic headphones, everything. I can't find a setting to tell the speaker to disable when headphones are in- isn't it supposed to be automatic?
View 9 Replies
View Related
May 12, 2010
I'm new here and a new Eris owner had it now for about a week and love it so far.I've read through several of the threads here about the battery and best ways to conserve, and I've tried to apply them (and I appreciate the info I've been able to find here).I'm conditioning the battery now (fully drained/charged it a few times), have set the brightness down lower, turned off bluetooth & wifi, set email checking to 2 hrs rather than 15 minutes.My question is about the effect on the battery of using facebook and peep/twitter as apps running on their own home screen.I have each of these two on their own screen so I can see updates but is this more draining on the battery than instead just having the apps as icons and then opening them up (meaning does this mean they are open all the time and draining battery)? Also, I have 3 email accounts setup but set to check every 2 hrs. Would this be more draining than just 1 email that checks every 30 minutes?
View 3 Replies
View Related
Mar 11, 2010
Which of these batteries do you suggest for my Eris? I am still in the 30 day period (and plan to upgrade if a newer phone is released within the period), but after that I am pretty sure I am going to get an upgraded battery.
The current options are:
2x BATTERY+DESKTOP CHARGER FOR VERIZON HTC DROID ERIS - eBay (item 280468408194 end time Mar-22-10 19:05:38 PDT)
or
Innocell 1750mAh Slim Extended Life Battery
The Seido one is larger and has a reputation, whereas the ebay one is slightly larger, but comes with the charger so that I can carry two. With the Seido, I would probably just do a complete replacement and not carry the extra. The ebay on is also vastly cheaper. <--not too big a factor, as if I keep the phone I will not cheap out on arguably one of the most important parts. However, as a colege student, the cheaper price is nice.
View 19 Replies
View Related
Jun 4, 2010
i searched and found nothing helpful...but i keep GPS off. i only check google maps (latitude) every now and then, but i always close it when i'm dunzo by backing out, and then task killing. however, under battery usage, my maps is at 87%, and has been for 2 days. what?!?! i don't even use it! wtfs it doing?
View 6 Replies
View Related
Apr 8, 2010
I was having major issues with battery drain on 2.1 (second leak) and after reading some threads here I removed the HTC battery widget. This appears to have solved the problem. Apparently the phone was not going to sleep when I had the HTC widget running. The awake time was nearly what the up time was. Without the HTC widget I do not have this issue.
Has anyone ran the Android Battery Widget on 2.1 and does it create the same problem?
View 13 Replies
View Related
May 26, 2010
I use to get a low battery alert warning at 15%, 10% and again at 5%. However, now I am not getting any alerts and my phone just display ready to shut off as I am using it. Is there a settings area that I inadvertantly changed? Has amyone else experienced this?
View 2 Replies
View Related
Aug 10, 2010
Just received my replacement Eris on Friday the new one already has the 50% without signal bug and has frozen up on me today several times.The battery is discharging at an ultra high rate and my Up time is 4:04 while my awake time is 3:58 as you can see not much difference between the two.I have killed all of the apps I can see in running apps and services.What could the problem be?I am a newbie.
View 3 Replies
View Related
Dec 3, 2009
As a Verizon wireless employee I get to play around a lot with the phone and today I found that the stock battery out of the HTC Ozone (which is a 1500 mah) fits under the battery cover of ourEris. It is a hair thicker, but it fits.
View 42 Replies
View Related
Mar 13, 2010
Anybody hearing anything about extended batteries? Do they make them, do they help any? etc. Let's try to keep smart A comments to ourselves.
View 2 Replies
View Related
Aug 29, 2010
I read a few threads about better batteries for the eris, and I though several people recommended the touch pro 2 battery, since it is 1500mAh. So I found a deal on an OEM one for my phone. Unfortunately it does not fit well. Although it is not much thicker then the eris battery the corners are not rounded so the back does not fit on all the way.
What do you guys think should I try one of the 1500 generics that say they are for the eris, or stick with my stock battery?
The middle pics are with the touch pro2 battery and the last is the stock eris battery.
View 4 Replies
View Related
Feb 3, 2010
Just saw this on Gizmodo, it's a solBAT charger for any USB device... it's a 1500 mA battery that pumps 5V through a USB hookup. It's not exactly a perfect solution to anything (especially since it seems like it would be most useful in a car, which is when you'd be able to plug into the cigarette lighter anyway), but still: you can essentially boost your battery using only the sun, and it's only $30... pretty cool!
Thought I'd post it here for anybody with environmentalist inclinations who's having battery problems... or if you're like me, and you're planning some extended hiking/camping trips for the summer, and were trying to figure out how you were going to keep your phone alive for more than a couple of days
View 1 Replies
View Related
