My battery is acting weird

[Arber Esati]

I've got a Cubot ZORRO 001, with a 2200 mAh battery, which has been acting very weirdly . It started with it not fully charging while being plugged in the whole night.I thought it was my charger, so I got my moms charger which is way better than mine.It would charge very fast, like usually , until it reached around 50%, then it would keep falling down and going up.It went like that for some time, till one day it suddenly charged to 100%. Since then it started charging higher, up to 80-90%, but now it's ******* up again. I'm now constantly using the better charger but I haven't seen anything over 70% since a couple days.I tried the "Spin test" (trying to spin your battery to see if it has a bulge), and it didn't spin at all.I also tried calibrating it with battery calibration but no effect.

P.S: I use my phone while charging quite a lot and it gets hot pretty frequently .... Bad use I know...

 

[chennaite]

This is how the some Chinese phones act weird, sometimes the battery loses it's capability soon i.e the ion exchange inside the battery. Not only bulging means battery got worse so try changing your battery. As you said that battery calibration doesn't work.

 

[hotdogchilli]

Yes, some Chinese phones have really great batteries, but some have not so good batteries. It all depends, so if it's not okay, try to change it.