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  Charging

Correct charging of a VRLA battery is essential in optimizing battery performance and life. Although a constant voltage charge should be applied, optimum charging also depends on temperature (Nominally 20 degree), charge current (max 1/4 battery capacity) and ripple current (minimum) . Two basic categories of charging exist.

To find the size of battery you require you generally need two pieces of information, battery load and back-up times. (Note: other factors may also have an effect).


Float/Standby

This charging method is used in applications such as emergency back-up when the battery is required only upon mains failure e.g., continuously on charge and consequently the recommended voltages are slightly lower than cyclic charging so as not to damage the battery.


Cyclic

Cyclic charging is used in applications where the battery is repeatedly discharged then charged, e.g. Portable equipment, Wheel Chairs, Golf trolleys etc.
A higher charging voltage is used but should NEVER be left on indefinitely since is will overcharge and destroy the battery.

Note: For optimum performance always recharge a battery immediately after discharging. Consult the individual battery specification for the correct charging voltage or contact BSB Technical Department

 
 
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