Develop Bugs

External Batteries

I was just wondering whether external batteries are generally quite reliable, and if so what the best brands are to go for? I am looking for a relatively powerful one - I am not afraid of a little bit of cost, but obviously I don't want to spend masses.
Thanks

Ive got a New Trent and its well built and reliable. The 11000mAH will last you for several days. Have a look on Amazon.

I have a "Just Mobile Pro" or something like that.
4400mAh with 1000mA output.
But the EasyAcc 5600mAh (which I don't have) does sound better and cheaper (on Amazon).

Second new trents 11000mah one that thing is a beast

Chartist said:
Ive got a New Trent and its well built and reliable. The 11000mAH will last you for several days. Have a look on Amazon.
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24inchsub said:
Second new trents 11000mah one that thing is a beast
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yeah i got that bad boy too and its a beast. well worth the price

Chartist said:
Ive got a New Trent and its well built and reliable. The 11000mAH will last you for several days. Have a look on Amazon.
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Thanks not heard of New Trent before. Looks good. Can you confirm it's output charging current though? I can't find the spec on it anywhere. I'm assuming it's the full 1A, as it says it can charge an iPad, but could you please confirm? Looks like I'll be needing one!
Cheers.

wnp_79 said:
Thanks not heard of New Trent before. Looks good. Can you confirm it's output charging current though? I can't find the spec on it anywhere. I'm assuming it's the full 1A, as it says it can charge an iPad, but could you please confirm? Looks like I'll be needing one!
Cheers.
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i can try to charge my ipad when i get home haven't tried actually.

I bought the Anker 5600mAh battery for my HTC Desire. Great quality, compact and it fits in my pocket very nicely. I bought it for $30 on ebay
http://www.ianker.com/products_astronew.html

gordongartrell said:
I bought the Anker 5600mAh battery for my HTC Desire. Great quality, compact and it fits in my pocket very nicely. I bought it for $30 on ebay
http://www.ianker.com/products_astronew.html
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Flashlight feature's a nice touch.

isound portable external battery. Has built in flashlight too. Comes in two flavors, 16000mah and 8000mah.
If you look around you can find it cheaper elsewhere
http://www.isound.net/shop-by-type/accessories/i-sound-portable-power-16000-mah.html
Zagg Sparq 2.0 6000mah. Not worth the $100. Went on sale for $50 before..
Love the design and its built it power plugs. Loses charge over time. Google user reviews.
http://www.zagg.com/accessories/zaggsparq.php

knoxploration said:
Flashlight feature's a nice touch.
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It's good and bad . I was on the train heading home from work and I was charging my phone with the Anker charger. I accidentally pressed the power button twice and the flashlight turned on. Sitting across from me was this fairly attractive woman with a skirt on. She automatically crossed her legs and looked at me weird. I hope she doesn't think that i'm a pervert.

gordongartrell said:
It's good and bad . I was on the train heading home from work and I was charging my phone with the Anker charger. I accidentally pressed the power button twice and the flashlight turned on. Sitting across from me was this fairly attractive woman with a skirt on. She automatically crossed her legs and looked at me weird. I hope she doesn't think that i'm a pervert.
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Hah! Good thing I didn't have a mouthful of soda there...

Good thing to remember with external battery packs is that during usage some of the charge goes to charging the battery while some is lost in heat. I think I read some where its normaly 30-40%. So for example a 11000mah battery will give you some where near 6600mah of charge so about 3 and half charges of the HTC One X.
I'm considering either the:
TeckNet® iEP387 7000mAh Dual-Port 2.1Amp Output Universal USB Battery Bank
http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=467128533&pf_rd_i=468294
New Trent iCruiser IMP1000 11000mAh External Battery Pack
http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=467128533&pf_rd_i=468294
Although not 100% sure I need either at the moment

HTC-Gunge said:
Good thing to remember with external battery packs is that during usage some of the charge goes to charging the battery while some is lost in heat. I think I read some where its normaly 30-40%. So for example a 11000mah battery will give you some where near 6600mah of charge so about 3 and half charges of the HTC One X.
I'm considering either the:
TeckNet® iEP387 7000mAh Dual-Port 2.1Amp Output Universal USB Battery Bank
http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=467128533&pf_rd_i=468294
New Trent iCruiser IMP1000 11000mAh External Battery Pack
http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=467128533&pf_rd_i=468294
Although not 100% sure I need either at the moment
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The heat loss is inevitable but the capacity should be unchanged.
What the heat loss means is that you need more than 11000mAh to charge up the full 11000mAh battery due to the losses.
The tecknet is very good value. I am considering it at the moment

tsleng said:
The heat loss is inevitable but the capacity should be unchanged.
What the heat loss means is that you need more than 11000mAh to charge up the full 11000mAh battery due to the losses.
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Yes but I'm talking about in the other direction. So once you have 11000mAh in the device and you charge a device that take 1800mAh you will actually use aprox 2520mAh in doing so. My numbers and calculations maybe a little flawed but my point is that you cant do a simple 11000 / 1800 = 6.1 charges as you need to take into account heat loss which is around 30 - 40% (so I read on one of the amazon reviews)
Either way both devices are nice and cost quite reasonable.

Hampa_D said:
i can try to charge my ipad when i get home haven't tried actually.
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tried it with my ipad last night and it worked great, it worked as if it was on AC

Have got the Tecknet IEP987 7000mah battery myself. Has run through two charges of a sensation XL and my Fiio Headphone amp, and still around half full.
Am more than happy with it.

HTC-Gunge said:
Yes but I'm talking about in the other direction. So once you have 11000mAh in the device and you charge a device that take 1800mAh you will actually use aprox 2520mAh in doing so. My numbers and calculations maybe a little flawed but my point is that you cant do a simple 11000 / 1800 = 6.1 charges as you need to take into account heat loss which is around 30 - 40% (so I read on one of the amazon reviews)
Either way both devices are nice and cost quite reasonable.
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Ah yes of course. Did not realise you were talking about the other way round charger>>phone
Not sure how efficient but if say 10% loss, we still get around 5 times charge with a 11000mAh batt. to a One X.
I am leaning towards the 7000mAh. Not sure if I need it or not...

tsleng said:
Ah yes of course. Did not realise you were talking about the other way round charger>>phone
Not sure how efficient but if say 10% loss, we still get around 5 times charge with a 11000mAh batt. to a One X.
I am leaning towards the 7000mAh. Not sure if I need it or not...
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Also don't forgot not to simply divide the battery pack's capacity by your phone's battery capacity to see how many times it will charge, unless you are charging it with the phone turned off.
With the phone on it is obviously using the usual amount for running the phone, whilst it is being charged. Add the current being drawn for keeping the phone running (say 250mA when awake) for the time it takes to charge (for me 2 hours) and you are looking at 500mAH. Add that to the capacity of your phone battery before dividing it by the capacity of your battery pack to figure out how many charges you'll get from it. Figures used are just for example purposes. Use a current widget if you want to know how much your phone is using.
Plus like a phone's battery, a new battery pack will take several charge cycles to reach full performance. Where as with a phone's battery which only takes about 2 weeks (charging it every day), a battery pack will take that much longer to get the full performance out of, as you wont likely be charging it more than once a week/month.
And then there's the battery indicators. These New Trent ones look sensible, but I once purchased a Proporta Turbocharger 5000mAHr unit. It had three blue LED battery status lights that were always on if charging. If you looked directly at them they'd burn your retinas out your skull. They could be seen from space. Stupidly and comically bright. They HAD to eat into some of the capacity.
Copper losses over the cable at the distances involved in your average charging cable will be negligible. If you really want to reduce it, don't use those silly skinny retracting yo-yo charging cable things that some of them come with. Use a decent quality USB to microUSB cable. The higher the guage of the cable and quality of copper, the less volt-drop there is. I keep a good few of these kicking about at home as they are well made but not too costly, and come with a nice cable tidy clasp...http://www.ebay.co.uk/itm/GENUINE-NOKIA-CA-101-CA101-USB-DATA-CABLE-LEAD-5230-/140579882085?pt=UK_MobilePhones_MobilePhoneAccesories_MobilePhoneDataCables_JN&hash=item20bb36c465

fi3ry_icy said:
since the battery isnt gonna be removable, i am currently considering buying a portable charger..
here are some i found.. would like an opinion on which capacity would be good..
http://www.netimes.com/shop/power-master-9600mah-portable-mobile-power-p-3052.html?cPath=445_711
http://www.netimes.com/shop/2000mah...pack-with-led-light-p-3264.html?cPath=445_711
http://www.netimes.com/shop/dualport-5000mah-external-battery-pack-p-3109.html?cPath=80_731
http://mobilemate.yetaa.com/accessories/pineng-5000mah-power-bank.html
the last link has the same capacity as the 2nd last but it is way cheaper.. is it safe?
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here u go..
posted this in another thread..
cheers..

What's the device called that...

charges multiple batteries at the same time? I have a spare battery and I hate having to swap both batteries out of the phone all the time to get them each fully charged. I don't know what they call it, someone I met awhile back had one though.

megagodx said:
charges multiple batteries at the same time? I have a spare battery and I hate having to swap both batteries out of the phone all the time to get them each fully charged. I don't know what they call it, someone I met awhile back had one though.
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Can you buy multiples external chargers
something like that: 2x Battery + Dual Sync Charger Dock Cradle For Samsung Galaxy S2 II i9100
see ebay

How useful is the extended battery? (GSM)

I know the stock gsm battery is about 1750, and the extended battery is 2000. So for those who have bought it, is the difference very big? or only about 1 more hour of normal usage?

vincentistan said:
I know the stock gsm battery is about 1750, and the extended battery is 2000. So for those who have bought it, is the difference very big? or only about 1 more hour of normal usage?
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I would say anywhere from two to three hours. I purchased the Anker 2200 extended batter for my nexus and notice a couple hours extra of battery life. Hope this helps. To me it was worth it to buy the extra battery. Never have to worry about the phone since I always have a spare battery charged.
Sent from my Galaxy Nexus using Tapatalk 2

endo689 said:
I would say anywhere from two to three hours. I purchased the Anker 2200 extended batter for my nexus and notice a couple hours extra of battery life. Hope this helps. To me it was worth it to buy the extra battery. Never have to worry about the phone since I always have a spare battery charged.
Sent from my Galaxy Nexus using Tapatalk 2
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Where did you find Anker 2200 battery for Gsm version please?

If you search Amazon or eBay for "portable charger" or "portable battery phone charger" you should be able to find a lot of options.
For example, search for "Anker SlimTalk 3200mAh" -- it's a slim portable charger. Or search for the "mophie juice pack reserve micro" -- it's a keychain charger (respectively with a 1000mAh capacity).
With portable chargers you won't have worry about GSM or the Sprint compitability -- you just want to ensure they have a USB port (so you can supply your own micro USB charging cable) or they have a micro USB cable (some have the cables built into the charger itself so you don't have to carry anything).
Hope this helps!

It's way more battery time than people think of just comparing 1750mAh to 2000mAh, mine is doing almost double as long before charging some days with extended!

I got two of these:
http://www.ebay.com/itm/120832462058
And this to charge:
http://www.ebay.com/itm/110804935295
Two extended batteries and the stock battery and I don't worry about power ever again.

[Q] External Charger

Does anyone know where I can get an external charger for my extended batteries that I will receive next week? I looked on amazon, but I couldn't find any that seemed right.

Ask MiguelHogue. He had one.
Sent from my Slim E4GT using xda premium

H4rryTipp3r said:
Does anyone know where I can get an external charger for my extended batteries that I will receive next week? I looked on amazon, but I couldn't find any that seemed right.
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anker sells one on amazon.

I have a cheap external charger for regular batteries, works great and should be fine with the extended too.

someguyatx said:
I have a cheap external charger for regular batteries, works great and should be fine with the extended too.
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um. Maybe you want to tell the op where you got it since that was the point of his question.

Sorry I got mine on ebay its black and is unbranded. It has a light that is bright pink while charging and blue when done. It also has a usb port for charging with cable. Its all over ebay and amazon. Hope that helps.

calisro said:
um. Maybe you want to tell the op where you got it since that was the point of his question.
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I already linked him in the Qcell thread
sent from my ET4G on Paranoid Android using XDA Developers App in hybrid mode

H4rryTipp3r said:
Does anyone know where I can get an external charger for my extended batteries that I will receive next week? I looked on amazon, but I couldn't find any that seemed right.
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I don't see why the cheap eBay ones (~$5) wouldn't work with an extended battery. (The cutout/space for the battery is the same size/shape as the one in the back of the phone)
But, it's only a couple of bucks more to get a charger with 1 or 2 (regular-size) batteries... might as well get a couple of spares?

awoolf said:
I don't see why the cheap eBay ones (~$5) wouldn't work with an extended battery. (The cutout/space for the battery is the same size/shape as the one in the back of the phone)
But, it's only a couple of bucks more to get a charger with 1 or 2 (regular-size) batteries... might as well get a couple of spares?
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cheap chargers can fry your battery.

calisro said:
cheap chargers can fry your battery.
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I've been using mine for 6+ months, with no ill effects. (On both my Epic 4G and Epic 4G Touch - it's awesome that my backup phone uses the same size battery!)
Bought my cheap eBay charger for ~$10 with a "2200mAh" battery - I haven't noticed any longer life than my 1800mAh original. (It's probably that same "Chinese math" that gives us 4000W car audio amplifiers for $39.)
I have noticed that both batteries don't seem to be fully charged by this external charger - they show 100% when installed in my phone, but neither lasts quite as long compared to if they were charged in the phone. But, this is a small price to pay for having a (mostly) charged battery, ready to go at all times.
UPDATE: I bought some of the "Anker" brand batteries suggested in this thread, and they last a lot longer than the $4 ebay ones I was using previously. $20 for 2 good batteries + universal charger (Amazon) was worth it.

awoolf said:
I've been using mine for 6+ months, with no ill effects. (On both my Epic 4G and Epic 4G Touch - it's awesome that my backup phone uses the same size battery!)
Bought my cheap eBay charger for ~$10 with a "2200mAh" battery - I haven't noticed any longer life than my 1800mAh original. (It's probably that same "Chinese math" that gives us 4000W car audio amplifiers for $39.)
I have noticed that both batteries don't seem to be fully charged by this external charger - they show 100% when installed in my phone, but neither lasts quite as long compared to if they were charged in the phone. But, this is a small price to pay for having a (mostly) charged battery, ready to go at all times.
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you can buy two ankers with a charger on amazon for $20. Those are actually quality batteries. Small price to pay for actual proven batteries rather than the crap your getting on ebay.

calisro said:
Small price to pay for actual proven batteries rather than the crap your getting on ebay.
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I've purchased several non-OEM batteries (and chargers) from cheap Chinese sellers, and had zero problems. The only battery I've ever had fail was the original Samsung battery in my Epic 4G. (It's slightly "puffed", and doesn't hold much of a charge anymore.)

awoolf said:
I've purchased several non-OEM batteries (and chargers) from cheap Chinese sellers, and had zero problems. The only battery I've ever had fail was the original Samsung battery in my Epic 4G. (It's slightly "puffed", and doesn't hold much of a charge anymore.)
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UPDATE: My battery life was getting a little short, so I bought the Anker's suggested in this thread. The life is noticeably longer than my cheap eBay batteries. Not sure if they wore out sooner, or if they were poor to begin with. Either way, the ones you suggested last a lot longer. Thanks for the tip!

question about Anker bettaries

i want to order Anker batteries 2200 on amazon ... is that batteries must be charged by the external charger or can be charged as the normal batteries inside the mobile

mina_munchy said:
i want to order Anker batteries 2200 on amazon ... is that batteries must be charged by the external charger or can be charged as the normal batteries inside the mobile
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It can be charged inside your phone or with the external charger.....(Captain Planet voice) "THE POWER IS YOURS!!!!"

Superman0069 said:
It can be charged inside your phone or with the external charger.....(Captain Planet voice) "THE POWER IS YOURS!!!!"
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Yes, however don;t expect a car charger to keep up with it, at least mine won't

idbl_fanatic said:
Yes, however don;t expect a car charger to keep up with it, at least mine won't
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You need a good car charger then. I spent like $45 on mine, has a "high output"

mina_munchy said:
i want to order Anker batteries 2200 on amazon ... is that batteries must be charged by the external charger or can be charged as the normal batteries inside the mobile
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They can be charged either way, though they will charge fastest when you plug the charger into the wall and put the battery directly into it. This is probably also best for the battery life in the long run.

Any updates about the quality of the battery? I just ordered one off amazon myself, hahaha. My current battery lasts 4 hours if I'm lucky on any rom, so I figured it was time for a new one.

Good call! :good:
Psiryu said:
Any updates about the quality of the battery? I just ordered one off amazon myself, hahaha. My current battery lasts 4 hours if I'm lucky on any rom, so I figured it was time for a new one.
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I sure hope it's good, I bought a set on amazon and I'm going to start using it tomorrow. I've noticed a drop in my oem battery life, so thought I'd give these a try.

coltonbauman said:
I sure hope it's good, I bought a set on amazon and I'm going to start using it tomorrow. I've noticed a drop in my oem battery life, so thought I'd give these a try.
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I have those batteries and ordered them thru amazon..They work great!! but you get better charging with the charger that comes with it that connect to the wall socket. after you see the blue light..leave it for 15 more mins..as it get better charge!! They're just about the same as the stock batts..No NFC also.

ed20932 said:
I have those batteries and ordered them thru amazon..They work great!! but you get better charging with the charger that comes with it that connect to the wall socket. after you see the blue light..leave it for 15 more mins..as it get better charge!! They're just about the same as the stock batts..No NFC also.
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I like these batteries so far. I've been charging just through plugging my phone in, and I've seen no issues. The charget hey come with is handy too.

coltonbauman said:
I like these batteries so far. I've been charging just through plugging my phone in, and I've seen no issues. The charget hey come with is handy too.
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Does the 2200 battery fit with the stock cover plate?.. I have the S3 and my wife has the S2 so I dont much about the S2 phone.

I have these batteries and yes, they fit the stock backplate. I give them 4/5 for stock replacement just because no NFC. Actual charge capacity is great for the stock size.
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