Originally Posted by neonfreak20

I can also post some info on my Seidio 4000mah later once i finish discharging this cycle and then charge it back up. Unfortunately it takes a good 7+ Hours to charge to 100%

Edit: Also, I needed to clear Battery History so it will take a day before i post my results

so any update on those seidio 4000mah?

I have seidio battery, look my theme. It last more than twice than stock battery.
BMW measured 3890 mAh.

With heavy use a must charged stock battery at 4 pm, with seidio i have still 40% battery at 11 pm. Heavy use i think 4 hours of gps navigation with automatic display, some calls, sms, 3 hours internet 3g.

The 1900 anker isnt listed in your list, is it the same as chichitech?

From the sounds of it the Anker 1900 is as good or better than the OEM, I don't have a Anker 1900 to test, nor have anyone step forward to help out yet.

Originally Posted by bitslizer

so any update on those seidio 4000mah?

Sorry, I got fed up with trying to get the battery stats and took a break for a few days. I'll post back in a few days, I'm running a stock deodex ROM that's fully set up now, so now so I shouldn't have to worry about the random reboots I kept getting while trying to do these tests last week.

Originally Posted by dukynko

I have seidio battery, look my theme. It last more than twice than stock battery.
BMW measured 3890 mAh.

With heavy use a must charged stock battery at 4 pm, with seidio i have still 40% battery at 11 pm. Heavy use i think 4 hours of gps navigation with automatic display, some calls, sms, 3 hours internet 3g.

Added screen

A few practical points

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Just wanted to make a few points based on my knowledge of batteries. Most of this can be found the Battery University website.

Battery capacities will vary from the marked value for many reasons, including their age and their storage history. This doesn't excuse the fakes but it does explain why the OEM battery doesn't match the printed capacity.

When testing your new battery you should run it through a few full charge cycles to reach full capacity before you start running the tests.

Deep discharging (anything below 15%) is not good for your battery. Don't over-test.

Heat isn't good for the life of your battery. Keep fast discharging to a minimum, too.

Going by anecdotal evidence from users the HTC OEM batteries seem to vary a lot. This is probably due to the varying age and storage histories with the suppliers. My phone was one of the cheap ones through Asda in the UK. I have no idea how old it is.

I have bought two Anker 1900mAh batteries and an AIO 3500mAh extended with backplate, all via Amazon. The Ankers are noticeably better than the OEM; the AIO is easily twice as good as the OEM, but if the Ankers are 1900mA I'd guess it was around the 3000mAh mark. Not as good as the Seidio, but quarter of the price.

Originally Posted by gtnote

these are 3500mah and about $18 using the 10% off coupon code xda, good for all EVO 3d cases and accessories

Blatent self advertising


Sent from my HTC EVO 3D X515a using xda premium

tekcomm

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Hi, I bought 2 Tekcomm batteries from ebay.

They are advertised as 1700mAh
Sticker pull revealed them to be 1700mAh as well.

I did not do any exact measurements as suggested in the first post, but they seem to be holding quite well.

Complicated....

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This thread is saving my a$$ so much right now. I have been through all the "reasonable" tricks to get more life from my battery and just can't get enough so I thought I'd just buy an extended battery (although I hate the bulky look). But from reading here, it's not that easy