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Operating Instructions
Check the Voltage
To avoid potential battery failure problems, it is essential to
check the voltage level in new batteries to ensure that they
have been sufficiently charged by the manufacturer before
leaving the factory. Any battery with less than 12.30VDC (no
load) should be returned to your supplier as suspect. A new,
out of the box battery should show above 12.5VDC (no load).
Charging Voltage
In order for SLA batteries to charge up fully, they should be
charged at a constant voltage of between 13.2VDC (min) and
14.4VDC (max). Optimum charging voltage is normally 13.8VDC.
Time taken to fully charge will vary depending on the Ah size of
the battery and the level of current available from the charger.
Batteries Hate Heat
For maximum life and performance, an SLA battery should be
maintained between 20⁰C - 25⁰C (68⁰F - 77⁰F). At significantly
higher or lower temperatures the Ah capacity available could vary
up to 50%. Be aware that SLA batteries hate heat, the hotter the
battery, the shorter its life.
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