Equalizing Batteries
(Flooded batteries
only)
Equalizing is an overcharge
performed on flooded lead acid batteries after they have been fully charged.
Equalizing reverses the
buildup of negative chemical effects like stratification, the condition where
acid concentration is greater at the bottom of the battery than at the top.
More importantly equalizing also helps to remove sulfate crystals that may have
built up on the plates. If left unchecked, sulfation will reduce the overall
capacity of the battery.
Many experts recommend that
batteries be equalized periodically, ranging anywhere from once a month to once
or twice per year. However, we recommend equalizing every three months or when
low or wide ranging specific gravity (+/- .015 sg) is detected after fully
charging a battery.
Equalize
Procedure:
-
Verify the battery(s) are
flooded type.
-
Ensure your batteries are
at full charge before starting the equalize process.
(Failing to do so may cause the batteries to overheat.)
-
Remove all loads from the
batteries.
(Not removing loads may damage other equipment as higher voltages are used
during the equalization process and may damage electronics and electrical
equipment. The energy of the equalization process is also diluted if loads
consume some of the power battery or generator power during equalization.)
-
Connect battery charger.
(Your inverter will already be connected.)
-
If you have Water Saver
vent caps remove them now to prevent damage.
-
Set charger for the
equalizing voltage
(12V system = 15.5V and 24V system = 31V).
-
Start equalizing the
batteries.
-
Batteries will begin
gassing and bubbling vigorously.
-
Take specific gravity
readings every hour.
Equalization is complete when
specific gravity values no longer rise during the gassing stage.
NOTE: Most good
Inverter/chargers have an equalization setting. If we set your system up
parameters will have been set within your inverter. Most normal battery
chargers are not equipped to undertake the equalize procedure.
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