The CSB GP645 battery is a reliable electric companion for your devices. It features a durable, sealed case for long-lasting performance. 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• voltage - 6 V• capacity - 4.5 Ah at 20-hour discharge up to 1.75 V per element at 25 ° C• maximum discharge current - 130 A• maximum charging current - 1.35 A• charging voltage in cyclic mode - 7.20 V ~ 7.5 V at 25 ° C• charging voltage in buffer mode - 6.75 V ~ 6.9 V at 25 ° C• nominal operating temperature range: 25 ° C• device dimensions (LxWxH) - 70x47x108 mm• weight - 0.85 kg (Tolerance ± 5.0%)• shelf life - up to 5 years