The RITAR RT655 AGM battery is the right battery for your devices. Durable construction, long life, and a wide range of applications—that's what RITAR batteries are all about! Application:• uninterruptible power supplies• in telecommunications and industrial equipment;• in backup lighting systems• as part of video surveillance, alarm, access control systems• in networks of fire and security automated systems Characteristics:• number of elements - 3• terminal type - F1• battery type - AGM• voltage - 6 V• internal resistance - 20 mOhm• capacity - 5.5 Ah• maximum discharge current - 55 A• maximum charging current - 0.55 A• charging voltage in cyclic mode - 7.30 V ~ 7.40 V at 25 ° C• charging voltage in buffer mode - 6.85 V ~ 6.95 V at 25 ° C• operating temperature range:- discharge: -20 ° C ~ 60 ° C- charge: 0 ° C ~ 50 ° C- storage: -20 ° C ~ 60 ° C- normal operating temperature range: 25 ± 5 ° C• device dimensions (LxWxH) - 70x47x99 mm• weight - 0.72 kg (Tolerance ± 5.0%) Please note! Failure to comply with the voltage and charge-discharge currents may damage the battery and void the warranty.