Is it under warranty ?
Check with Lenovo customer care if they provide service for out of warranty. Obviously it will be chargeable if its out of warranty.
They don't care if you have stock ROM or Custom ROM. They will just inform you that they will flash it to factory settings and don't take backup also (as its customers responsibility of the data backup)
It's not under warranty.
I don't want them to flash anything, just replace battery. Nothing else.
As I checked with Lenovo/Moto service center, they don't have Lenovo K6 Power Battery.
Where I can buy original battery? Online or local?