The AGM RITAR HR6-36W battery is a reliable electric companion for your devices. It features a sealed, durable case that will last a long time. Features:• HR series battery have 30% more output power for heavy loads 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 - F2 battery type - AGM voltage - 6 V internal resistance - 8.0 mOhm capacity - 9 Ah maximum discharge current - 90 A (5 sec.) maximum charging current - 0.9 A charging voltage in cyclic mode - 7.3 V ~ 7.4 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 (W x D x H) - 151 x 34 x 100 mm • weight - 1.35 kg (Tolerance ± 5.0%) Please note! Failure to comply with the voltage and charge-discharge currents may damage the battery and void the warranty.