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General manual. Rechargeable lead-acid batteries ZEUS.
Battery Specification
Discharging
Lead-acid batteries are susceptible to deep discharge. The battery life depends on the depth of its discharge. Deeper
discharge shortens the battery life. One of the most common causes of over-discharge is leaving the battery uncharged
for a long period of time without charging. Too deeply discharged batteries become sulphated, which manifests itself in a
partial, irreversible loss of available capacity. The minimum permissible discharge voltage of the battery depends on the
discharge current and is specified on the battery discharge characteristics (see the installation manual for the selected
battery model).
Charging
The recommended method of charging rechargeable batteries is the constant voltage method with limitation of the
initial charging current (see charging characteristics). The initial charging current should not exceed 0.3 C [A] (C—battery
capacity). For example, initial charging current for ZS-24 battery should not exceed 7,2 [A]. The recommended initial
charging current is 0,1 of battery capacity value, so for the ZS-24 battery it is 2,4 [A].
The optimal battery charging voltage depends on the ambient temperature. At a temperature of 25°C, the recommended
value of the charging voltage in standby use is 2,23—2,30 [V / cell] (for a 12V battery the voltage range is 13,38—13,8V)
and in cycle use it is 2,40—2,45 [V / cell] (for a 12V battery the voltage range is 14,4—14,7V). The recommended value of
the initial charging current—0,1 C [A] (C—battery capacity).
The battery sealing system (VRLA) is made with AGM technology and includes a one-way pressure (safety) valve. The
valve opens when the internal pressure increases too much (it may occur, for example, when overcharging the battery)
and safely discharges the resulting gas to the outside, preventing the casing from bursting. For this reason, the sealed
rechargeable, maintenance-free batteries should not be overcharged, and the room in which the battery is located
should be equipped with efficient ventilation.
Charge Characteristic Curve For
Standby Use (25°C)
Charging Time (h)
Note! Make sure that the voltage level is set correctly. Too high level of charging voltage can increase sulfation of the
positive plates, which will reduce the capacity and at the same time it will shorten the battery life.
AAT SYSTEMY BEZPIECZEŃSTWA sp. z o.o.
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