Batteries; Battery Life - Tunstall USV 60 Mode D'emploi

6

Batteries

6.1

Battery life

The battery set is equipped with maintenance-free, valveregulated lead-acid
(VRLA) AGM batteries. Based on their EUROBAT classification, these batteries
have a service life of 3 – 5 years. Their usable life is highly dependent on tempe-
rature (up to 20°C: 4 – 6 years; see Fig. 3). The capacity of the batteries is
around 60% after 3 – 5 years.
We recommend replacing the batteries every 2 years as part of regular mainte-
nance.
Fig. 3: Battery life as a function of the ambient temperature
If the system is not going to be used for some time, the batteries must be fully
charged first to prevent self-discharge causing damage to them; see instruction
manual for the power supply unit.
Battery set for UPS 60 (77 3450 00) – Instruction manual – 00 8802 82, 02/18 (Rev. 6.1)
Batteries
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