The batteries within your UPS system have a limited life and will require replacement around year 3-4 or 7-8 for a 5 year or 10 year design life battery set. During their life individual battery blocks can develop problems that can damage the overall battery set and reduce the amount of runtime available when the mains power supply fails. Whilst your UPS system front panel may well report an expected runtime, load and battery charge % states, the battery voltage can collapse when the battery discharges and the available runtime rapidly reduce.
EcoPowerSupplies provides nationwide conductance battery testing services including trending analysis to help predict future battery failures and the optimum time to replace an entire set. The service costs from £230.00 ex VAT for a 40 battery block set.
0800 210 0088