Casio Replacement Battery BTR811B for Casio G'zOne Commando 4G C811

Keep a backup power supply handy for your mobile phone with this genuine Casio lithium-ion replacement battery. The compact design fits neatly in your device's battery compartment, and the included instructions tell you how to install this unit in your phone. With its rechargeable functionality, this Casio lithium-ion replacement battery gives your phone the charge it needs for calls and texts.