Most Helpful Customer Reviews
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17 of 17 people found the following review helpful:
5.0 out of 5 stars
Good extended battery that fits OEM battery door!, February 11, 2008
I have been using this battery for almost a week now and I must say I am surprised by it. This extended battery is rated @ 1600mAh and stock @ 1340mAh so I didn't think I would see that much improvement! Following services/programs are on all the times on my phone: Bluetooth, WiFi, IM+ program and E-mail set to check every 15 mins. I also talk a lot and use Calendar and Tasks program throughout the day. BTW, I turned off 3G on my phone because 3G will drain battery a lot faster! I do this on all my previous 3G phones.
With OEM battery, I am barely getting 1 day out of it but with this extended battery, I get about 1.5 day..may be 2 days of usage out of it. I know there are extended battery out there with over 2000 mAh and those will probably give about 3-4 days of usage but they also require extended battery door so going to make the phone bulkier than it already is! This battery is good replacement if you want a little more usage and still use OEM phone battery door!
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3 of 3 people found the following review helpful:
3.0 out of 5 stars
Disappointed, March 2, 2009
I should start with a few informative statements here. I'm not just trying to be critical -- I had really hoped this battery would give me some improvement. Also, the battery I got was sold by Thebatterycenter, so batteries like this from other sellers might be just fine; I don't know.
My first impressions of this battery were mixed. It came in outdated packaging that referred to it as a camcorder battery! But the sticker on the battery itself said Replacement for TYTN II, so no problem. It also said 1600mAh, so I knew I had the right one. Excitedly, I placed the battery in my phone and turned it on. Charged at about 40%...reasonable enough. Plugged it in to start charging fully, and everything was fine. But within about half an hour, the light changed from amber to green, and the phone said 100% already. I thought it was a little strange, and sure enough when I unplugged it from the wall, ZAP -- it shut off. I messed with it for quite a while trying to figure it out, but in the long run I discovered that the battery's metal contacts were getting pushed in too far until the prongs of the phone couldn't even reach them. To make the battery work again, I actually had to peel back the stickers encasing the battery (DON'T try this at home... :D ) and insert two thirds of a toothpick behind the contacts to hold them in place. Needless to say, my battery was cheaply made and I was quite annoyed. But I made it work anyway!
Now, for the actual statistics. I wanted to see how this higher capacity would stack up against the stock battery. So I fully charged each one, and then turned on Wi-fi and started streaming NASA TV online in Windows Media Player. The idea was to do a quick and dirty test that would drain them as quickly as possible, so you'll get a lot more time out of your battery for daily usage than I did here.
Run times while streaming online video:
1600mAh replacement: 2 hrs, 38 mins
1350mAh stock from AT&T: 3 hrs, 10 mins
That means this "extended" battery actually gave me 17% LESS time than the original! Both batteries are Li-ion Polymer at 3.7V DC, so with 250mAh more I really can't understand why the new one performs so poorly. Especially since my stock battery is now 8 months old and doesn't last quite as long as it used to. And I've taken this new one through at least 3 charge/discharge cycles, so that shouldn't be the problem either.
On the positive side though, this battery definitely does fit inside the standard phone casing. It's actually a little thinner than the original, and perhaps even a bit lighter too. You can find other extended batteries that really would give you huge battery life, but they would make the phone incredibly fat. So I was glad to find one in the slim form factor.
Overall though, my experience with this product has definitely been disappointing. It's not a complete loss, since now I do have two batteries instead of one. But I really was looking forward to longer daily usage, and it doesn't look like this battery is going to help with that. So do your research carefully, and just know what you're getting.
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1 of 1 people found the following review helpful:
1.0 out of 5 stars
Weaker than old battery I bought it to replace, March 28, 2009
Quick review. Pretty heavy user of email, occasional web browsing using skyfire (heavy battery drain) bluetooth for phone. I try to manage power drain by turning off BT and 3G when I can. Old 1350 mAh battery was almost dead, on a typical day after about 12 hours of use. New "larger capacity" battery can not even make it 7 hours. After a week of trying to condition the battery (although I have read that these batteries cannot be conditioned I thought I would give it a try) but no improvement. It is going back
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