Replacement battery for alarm systems. Compatible replacement battery, not an original battery from the manufacturer! Refer to the device and battery numbers listed to select the right battery for your device! Replacement battery suitable for: Visonic: PowerMaster 10, PowerMax 99-301712 Control Panel, Powermax Express, PowerMaxExpress Alarm Control Panel Identical to the following batteries: Visonic: 99-301712, GP130AAM4YMX, GP230AAH4YMX Please note: Opening your device voids the warranty. Installing this battery is especially complex and follows at your own risk. We do not assume any liability for damage and failure with devices and/or batteries. https://elecena.pl/product/19534571/31121-battery-for-powermaster-10-nimh-1300-mah 2021-09-26 https://elecena.pl/product/19534571/31121-battery-for-powermaster-10-nimh-1300-mah 2022-06-02