B-77 Y31L Y28 Y928 Y628 100% Original Li-ion Polyer Rechargeable battery For vivo Y31 2015 2100mAh

It seems you're referencing a specific battery model for the Vivo Y31 from 2015, which is an OEM B-77 Li-ion polymer rechargeable battery. Here are the details based on what you've provided:

• Model: B-77

• Compatible Phones: Vivo Y31, Vivo Y28, Vivo Y928, Vivo Y628

• Type: Li-ion polymer rechargeable battery

• Capacity: 2100mAh

• Condition: 100% Original (OEM)

If you're looking to replace the battery or purchase one, it's important to ensure that the seller provides an original OEM product to maintain the phone’s performance and safety. Would you like help finding a source to purchase this battery or more details on its compatibility?