3200mAh For HTC One M7 Power Backup Extended Battery Case Cover Stand Charger

After 1 day of use I left this on charge after about half an hour I noticed a really bad smell turns out the plastic casing started melting and the heat coming from the battery was terrifying after unplugging it there has been a continuous hiss coming from the device I want to return this but I litterly cannot by law put potential explosive batteries in the mail.

Not fitting the mobile and I asked for refund for more than 1 month without response after they approved it and no money is refunded yet