compatible with
This battery is compatible with Galaxy S21 5G Model SM-G991U/U1/B/W/N/Q.Not for S21 Plus or other models

Battery capacity
The Battery type is Lithium Ion.
The battery has a capacity of 4000mAH.
The Voltage is 3.85V..

Enhanced Protection
The battery ifeatures A+ grade cells and an integrated IC chip, guaranteeing protection against overcharging, overheating, and other potential issues. Enjoy up to 1200+ charging cycles for efficient and reliable charging.

Items in the packaging box
New 4000mAh Replacement Li-Ion Battery x 1 pcs.
Repair Replacement Tools
1 x Ejection Pin:For removing the SIM card
1 x Triangle Opening Pick:For removing the back cover
1 x Suction Cup:For removing the back cover
1 x Spudger:For removing the old battery
4 x Screwdriver:Removing&Putting back screws
1 x Set of Adhesive Strips:For installing the replacement battery

How to use
It is easy to replace old battery with new Galaxy S21 battery.
Please turn off your phone prior to replacement.
Carefully disconnect your old battery.
Connect your new battery to the mainboard.