Develop Bugs

spare battery alternative

Since I bought my HTC desire it hasn't lasted a day without charging.
I'm beginning to get a bit annoyed at having to carry my usb cable and plugging into any available power source at every chance I get.
Was thinking of a spare battery, but I can't justify the price for an original or trust the performance/reliability of a cheap one.
Then I came across this
duracelldirect.co.uk/pno/ubp0103b.html
(can't post a link, no privelages yet)
Has anyone had any experience using an emergency charger for everyday use, or are they just too weak?

It holds 2200 mA/h. The HD2 battery is 1230 so i'm guessing the desire has about 1000 based on its smaller size.
In theory, the duracell should be able to give 2 full charges.
I have been thinking the same thing - its a bit annoying wondering whether the battery will make it to the end of the day. Beware of cheap emergency chargers on ebay - i seen one with only 250 ma/h...
If you buy this let me know how well it works

This just got delivered today, charging at the minute.
First impressions, good build quality, will let you know it it hold any charge tomorrow.

I thought the desire was 1400mah? (at leat according to gsmarena). You must be using it fairly heavily?

2x Battery + charger 2000mah($13.00)

Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911

Highly doubtful 2000ma batteries, probably 1500ma batteries that are really 1300ma. Tutoit on ebay I have 2x1500ma batteries for a 9.98$ shipped with a charger, I would get that instead.

yeah, either get the 2 1500s and the charger for 11 50
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137
or the 1800 and the charger for 11 50
http://cgi.ebay.com/1800mAh-Battery...250661003311?pt=PDA_Accessories#ht_3119wt_911

jayv1717 said:
Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911
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I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?

Trident said:
I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?
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I ordered it, but still waiting...those hong kong shipments take a while, i'll let you know as soon as I test it out
Sent from my Htc Evo 4g

I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.

so how are the batteries?

normally i would stay way from cheap Chinese crap on eBay, but with what i read here on the xda boards in regaurds t othe ok qualitybeing good enough that they might work out, so i ordered 2x1850 plus charger from ebay. i dont have time to do any real testing but i can say that:
1 not having to charge the battery from the phone is nice
2 i always have one on the charger, one in my pocket and one in the phone.
3 charging in the base seems to get me a better charge
4 i cant tell a difference between oem and knock offs, although you would think that the 1800's would last longer than the 1500oem but we know how that knock off crap goes. in my book if they are the same as oem, regardless as to what they claim and dont require a bigger back plate, then i guess that's good enough.

The 2 from tutoit or what ever the sellers name is work great last as long or longer then my stock battery. The charger also gives a better charge to the batteries then I get through my phone I'm talking extra hours when I charge with it.

ryohei47 said:
yeah, either get the 2 1500s and the charger for 11 50
[ul]hxxp://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137[/url]
[/url]
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I got this and it's a good deal for the price.
The batteries aren't as good as oem. Probably last 75-80% as long.
The charger works well though and it's nice to have a couple extra batts laying around. I've only cycled them 4 or 5 times so I suppose the life could improve...time will tell.

rugedraw said:
I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.
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I Have a number of Minor issues with mine. Must of gotten a bad set.
1) USB port on the charger does not output enough juice to charge the phone (Accually Locks it up until I unplug it)
2) Charger seems hit or miss on recharging the Stock Battery. I've left it plugged in all night and come back to ~20% charge when I pop it in a number of times
3) Random Screen cut off when charging the Replacements IN the phone.
So I only charge the Ghetto batteries in the charger provided.
That being said, I STILL think it's a great deal and more than happy with my purchase. I have 2 spare batteries for my phone (Or the wifes CDMA Hero) and a way to charge one w/o having to leave my phone behind (I don't have to babysit my phone for a charge, If someone walks out of the poker room or party with my charger and battery it's no big deal) The 2 China batts. are just emergency tanks, The Red one gets put back in as soon as I get home.

Best Purchase at twice the price.
Don't wait press the BUY NOW!!!!
Loved the first set so much that I purchased a second set 2 weeks later. I keep 1 set at work and 1 set at home. I always carrying a fully charged battery in plastic bag in my pocket. I love the EVO but hate the battery life. The first month I owned the EVO was hell for me having to carry a power charger and cable everywhere. I hated having to plug my phone in every time I found a power outlet worried if I didn't I may find myself without a phone when I needed it or having to fight everyone at the airports for power outlets. Now when I'm low on juice, I just switch batteries.... BUY NOW you'll never regret it....

I purchased 2 3500 batteries with new backs on e-bay for $22 and change. They work great I can go for over a day with fairly heavy usage.
Only minor problem was that with the phone thicker my silicone case doesn't fit as good. Extra weight no problem.

Yeah one thing I have learned from buying these types of batteries and charger is that they don't like to charge the OEM batteries but charge the cheapo ones just fine. I've noticed it on alot of things not just phone batteries.

buy it for the charger
i bought a 2000mAh that turned out to be a 900mAh so i would only buy it for the charger.

I wouldn't recommend the 2 x 1500 batteries plus charters the 1500's seem like a 1300 or a little less I would say try get the 1800 one from eBay they have a lot of auctions for them so all you gotta do is be patient and try to get for cheap that's what I'm tryin to do

Just ordered one of the 1800mah.. will see how this works out!
Sent from my PC36100 using XDA App

Battery Death!

Hello XDA,
I got a nice new gnex at I/O. I've kept it stock, rooted it, etc. Battery life has had a steady decline. Here are some stats:
Jun. 28: I/O
First complete day after using device. I looked at an old screenshot. 2 hours, 46 minutes of SCREEN ON time, and a 14 hour charge-day, left me at 1%. Complete rundown. Died right after.
November 9th: Recent
Another complete rundown. 1 hour, 58 minutes of SCREEN ON time, 9 HOUR charge-day. Died.
You'll notice I've only had this device for a few months.
Thoughts? I'm interested if this happens to anyone else. I've been charging it with a low-current ADK 2.0 adapter for the past couple months to charge it. Is that a problem? I assume the device has a nice power-regulator for charging. The original samsung adapter that came with my nexus remains unopened.
Will buying a cheap battery on ebay fix it? Do samsung phones (this is my first) have that same "battery stats" stuff like other devices?
I appreciate any help. Happy Thanksgiving!
jcarrz1

you may want to think about getting yourself the 2000 mAh battery instead of cheap china pack.

wow that is really good! does that one require the back cover that's a bit thicker though?
anyone have ideas why mine died (lost longevity) so quickly?

Yeah it has a new battery door that makes it slightly thicker. You can still use most cases, worst case scenario you can use a case w/o the door, that is what I am doing with my Commuter.

Sprint was giving away the official Samsung extended 2100Mah battery for free, it came with the rear batt door also. The bulk it added was sooo minimal, it actually made the phone seem to fit into the case better. I got the battery a few days after I got the phone so I have no idea of how much more time I got versus the stock one.
I also have a Scosche USB charger that has two USB ports on it one that is 1 amp and another that is 2.1 amps.The higher amperage port is made to charge the iPad since it has a huge battery and 1 amp will take forever to charge the thing. if I charge my phone in the 2.1 amp port it will fully charge my Gnex in half the time, will it burn up my battery maybe. But I only use it if I have to go somewhere and I need my batt to charge in a hurry. Normally I use the 1 amp port. I believe the phone regulates the charge and will cut it off when it senses the battery is full.

QI Charger/Power Bank

I wanted to get QI charger w/ my Nexus and ended up getting one that included a 10,000 mAh powerbank for basically the same price.
I thought it was going to feel pretty cheap, but to my surprise it seems like its pretty good quality. For 40 bucks for both a QI and a power bank in one it's pretty kick arse! So be forewarned the "IN STOCK" status is BS it ships from China so don't expect within a week; I think I got mine in 3 weeks.
Also the instructions are horrendous, not sure who translated it but its actually comedy. I think says something like... "Use it if it bulges, smells or smokes." (instead of dont) and has FAQ's that have no questions. Literally every line in the instructions does not make sense.
So you can use this as a normal QI charger. As a powerbank you can use QI or plug it in through the USB ports (2) which makes more sense so you dont have 30% power loss as with QI. Powerbank is same shape as phone just about twice as thick and slightly larger width and length. Finished material is smooth so if you have a hard plastic case it may easily slide off or not become centered well enough to charge. I have a case no issues charging through the case. It does also get a full charge and it does not get my phone more than warm (same as wall charger).
http://www.amazon.com/gp/product/B00FS1NTMW/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1
*not much but you can save a little here:
forgot to mention you can Save 5% on Qi Wireless Charger Transmitter 10000mAh Mobile Power Bank(ASIN:B00FS1NTMW) when you purchase 1 or more Qi Standard Wireless Charging Receiver offered by Docooler. Enter code 3VYHPR39 at checkout.
Enter code 3VYHPR39

I'd be very interested in a test to see what the actual capacity of this is. Im always wary with a no name brand battery from China because they tend to always overstate their battery capacities. Wish there were some reviews, but I might give it a go anyway to test it out myself.

Looks interesting, but the lack of reviews make it sound dubious

loooller said:
Looks interesting, but the lack of reviews make it sound dubious
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Its weird how almost all of the qi power banks on amazon have no reviews. Seems like something everyone should have. Ridiculously useful. I am wondering why the one posted above is a good 25% cheaper than all the others of the same 10,000 mah capacity though.
Would absolutely love for the OP to test how many full charges of the Nexus 5 he could get from the device using USB and then Wireless charging, but that would probably take a while. Also OP, when you say that the case is smooth, is it smooth like the soft touch plastic on the back of the Nexus 5 or smooth like the shiny plastic on galaxy phones?

I'm waiting for RavPower Qi Wireless Charging Pad with a built-in 4800mAh battery coming back in stock. It seems like a great fit with my Nexus 5 as I checked a review from WPCentral.

Ordered one
Just ordered one. Will let you guys know when I get it, what it's like!

muyoso said:
Would absolutely love for the OP to test how many full charges of the Nexus 5 he could get from the device using USB and then Wireless charging, but that would probably take a while. Also OP, when you say that the case is smooth, is it smooth like the soft touch plastic on the back of the Nexus 5 or smooth like the shiny plastic on galaxy phones?
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no problem but may be a few days I'm getting over a day cycle on my nexus so far. I bought it mostly for the QI charger the bank was a bonus/ I will keep a log but try and get full cycles out of it to make it easier.
As far as the smoothness it is more like the shiny plastic on the galaxy phones. My phone has a plastic case it doesn't slide to much but I could see if it got bumped it would move. I had bought a screen protector someone posted that i don't like it's kind of rubbery or tacky feel i was thinking about taking it off and putting it on the charger so it was a little more "grippy".
Give me a few days I'll put up some stats for you

muyoso said:
I'd be very interested in a test to see what the actual capacity of this is. Im always wary with a no name brand battery from China because they tend to always overstate their battery capacities. Wish there were some reviews, but I might give it a go anyway to test it out myself.
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PS They ALL come from China lol

jeremykersh said:
PS They ALL come from China lol
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Oh I know, but the ones sold under the badge of Samsung or LG are usually dead on their mah capacity ratings. Not so much for random Chinese brands I havent heard of before.

Hindo2 said:
I'm waiting for RavPower Qi Wireless Charging Pad with a built-in 4800mAh battery coming back in stock. It seems like a great fit with my Nexus 5 as I checked a review from WPCentral.
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Amazons having a 50% off deal on battery packs if you buy the RAVpower qi charger. I just picked up the charger and a RAV 8400mAh pack for just over 60 bucks. I've been wanting both for a while now and this deal was just to good to pass up. I do a lot of backpacking and have been debating between a battery pack vs. a solar charger for some time now as well. The pack is actually lighter than any of the solar charges I was looking at. And for 18 bucks was a no brainer.

so here are some stats on this as a power bank not sure how much power loss over a few days is normal but after a full charge of the bank using the cable here is what I came up with:
night one charger started at 51% .49 of the full 2300 mAh nexus 5 battery = 1127 mAh
night two started at 18% .82 = 1886
night three started at 22% .78 = 1794
night four started at 28% .72 = 1656
night five started at 9% died at 32% = 529
______________________________________________________________________
TOTAL mAh= 6992

jeremykersh said:
so here are some stats on this as a power bank not sure how much power loss over a few days is normal but after a full charge of the bank using the cable here is what I came up with:
night one charger started at 51% .49 of the full 2300 mAh nexus 5 battery = 1127 mAh
night two started at 18% .82 = 1886
night three started at 22% .78 = 1794
night four started at 28% .72 = 1656
night five started at 9% died at 32% = 529
______________________________________________________________________
TOTAL mAh= 6992
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Click to collapse
Interesting. And that is using the cable and not the Qi wireless charging? Its always said that Qi will have around a 30% loss in efficiency, which would make your numbers perfectly in line with what a 10,000 mah battery should do. Of course if you were using a cable it might just be that the low cost of the device translates to a less efficient transfer of energy. Still able to get roughly 3 full charges out of the power bank is pretty awesome.

muyoso said:
Interesting. And that is using the cable and not the Qi wireless charging? Its always said that Qi will have around a 30% loss in efficiency, which would make your numbers perfectly in line with what a 10,000 mah battery should do. Of course if you were using a cable it might just be that the low cost of the device translates to a less efficient transfer of energy. Still able to get roughly 3 full charges out of the power bank is pretty awesome.
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Yea thats through the cable, I know even turned off there is power loss on rechargeable batteries but I don't know what is normal power degradation equates to in a percentage. I agree though roughly 3 full charges may not be a full 10,000 mAh bank, but at the price even if it equates to a 7000 bank its not bad. Throw in the QI (which is mainly what I bought this for anyway) and this is pretty sweet deal :laugh:
I'll do it again and see what I come up with for round 2

Does it have an auto shut off function?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

mierkat09 said:
Does it have an auto shut off function?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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it does shut off once it gets a full charge, using the cable as a powerbank. Never tried QI as a bank doesn't make sense so don't know this way.

[Q] New battery Maguro: where are we at?

Hi all,
I've been looking around for a new phone for about a month now, with one main goal: to get a better battery life than my Samsung Galaxy Nexus (maguro) provides. I would really love to find a phone that I would not have to charge every day, like in the good old days of my Nokia 3210! The screen could be a bit bigger, but thats a secundary goal....
I am finding it very, very hard to make a choice. Of course there are phones out there that can give me more power (and bigger), like the Lenovo K920, the Huawei Ascend Mate7 or the Sony Xperia Z3, but they also cost around 400 euro's. I understand these prices, because these phones also give you a bigger screen, with more pixels, a better camera, more RAM and ROM and a faster processor etc. But actually, at the moment, I don't really need all of that. I am content with the size of my gnex, I use it to browse, whatsapp and occasionally to stream something to my tv. I don't play big games or use a lot of social media. And thanks to FML, I can almost get a stock version of Lollipop on my gnex, which is nice.
Can't I just buy a bigger battery and be done with it for a while, make it last another 6 months? I still have the stock 1750 mAh battery in my gnex it came with, there must be something better available?
I have 3 questions:
1) what is the best battery replacement at the moment that fits inside the original gnex backdoor?
2) what are my options if I am willing to settle for a backdoor that is a bit bigger?
3) are there any smartphones out there that focus solely on battery life? I haven't found them, but there surely must be a market for a smartphone that has a great battery life, and a decent (average) camera, screenquality, processor etc?

To solve my gnex battery issues I simply bought 2 replaceable batteries and a battery charger. At the time this cost me about $12 off ebay. This works best for me as then I never have to actually charge my phone with a micro usb charger (arguably the micro usb port is the weakest and most likely part of a gnex to break) and can just charge the batteries separately; leaving my phone mobile and not stuck to a wall for hours at a time. When I go out I put a spare charged battery in my wallet to swap it out when my battery runs low. It's also great when travelling as places to charge a phone are more limited but having a separate charger means you can use a sneaky power port without leaving your phone.
I haven't looked into getting a larger or 'better' battery personally, however one of my friends bought one that required a fatter backing case (at the time the biggest battery for gnex) and he said that could last him the whole day but meant he couldn't use any of the gnexus cases.
Quick note about gnexus batteries: The NFC chip for a galaxy nexus is built into the battery (don't ask me why), if your buying a cheap battery it will most likely not have NFC unless it's an official samsung gnexus battery from samsung. Not sure how much this effects you, I personally don't use NFC let alone find it important enough to warrant an extra $30 per battery.

IanCoves said:
To solve my gnex battery issues I simply bought 2 replaceable batteries and a battery charger. At the time this cost me about $12 off ebay. This works best for me as then I never have to actually charge my phone with a micro usb charger (arguably the micro usb port is the weakest and most likely part of a gnex to break) and can just charge the batteries separately; leaving my phone mobile and not stuck to a wall for hours at a time. When I go out I put a spare charged battery in my wallet to swap it out when my battery runs low. It's also great when travelling as places to charge a phone are more limited but having a separate charger means you can use a sneaky power port without leaving your phone.
I haven't looked into getting a larger or 'better' battery personally, however one of my friends bought one that required a fatter backing case (at the time the biggest battery for gnex) and he said that could last him the whole day but meant he couldn't use any of the gnexus cases.
Quick note about gnexus batteries: The NFC chip for a galaxy nexus is built into the battery (don't ask me why), if your buying a cheap battery it will most likely not have NFC unless it's an official samsung gnexus battery from samsung. Not sure how much this effects you, I personally don't use NFC let alone find it important enough to warrant an extra $30 per battery.
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thank you for your extensive reaction, but alas: I've retired my great gnex. My micro USB port did cave in, and I could only charge putting the phone in an upright position. I could have used it fine, but I got the chance to get a Huawei Ascend Mate 7 cheap, and it is holding it's own so far: 3 days and 3 hours on one charge and still I have 13% left!