[LStar123]

Does anyone know any reliable extended batteries that work with os 7.1 (im running os 7.1.0.523 if that helps)

[EnriqueRv]

Yes. I have 2. One that fits without an extra battery cover, that is 1500mah and has the same size, and another one that is 2200mah and that one comes with a battery cover since it doesn't fit. I bought them already decoded so you can look for that

[LStar123]

Can you send me the website link please and how long does your 2 batteries last for

[EnriqueRv]

You can search on eBay 1500mah battery 9360. and 2200mah battery 9360 You need to check if they're decoded/unlocked.
The 1500mah lasts me like 6 hours max, and the 2200mah one lasts me 1 day and a half.

[LStar123]

Thanks for that i checked ebay the batteries seem good