The Casio G'Zone Commando Standard Lithium Ion Battery for the Casio G'Zone Commando device is a 1460mAh Lithium Ion battery. The Lithium Ion technology delivers long lasting talk times, standby time and rechargeable with no memory effect. This battery is great to have as a replacement or an extra battery for your Casio G'Zone Commando. OEM Part Numbers: BTR771B/BTR771A/BTR771 The Casio Standard Lithium Ion Battery, manufactured by Casio is compatible with the Casio G'Zone Commando C771 phone model. Cables and Etc., LLC is the owner of the trademark CandE. This UPC is trademarked under CandE. Any violation will be reported to Amazon without any prior warning.