Manual

Operation
3–14 975-0560-01-01 Revision B
Follow the battery manufacturer’s recommendations for equalizing your batteries.
As a guide, a heavily used flooded battery might need to be equalized once a
month, while a battery in light service might only need to be equalized every two
to four months.
The equalization process lasts one hour. When the equalization period has
expired, the charge controller will return to either the float or no float charge
stage.
To enable battery equalization:
1. On the Setup menu screen scroll to Equalize, and then press Enter.
2. Change the setting to Enabled.
The charge controller goes back to the bulk stage and goes through bulk
and absorption before entering the equalization stage. The full charge cycle
makes sure the batteries are fully charged before an equalization is
attempted.
The charge controller applies the equalization charge for one hour. You can stop
the equalization process manually at any time by changing the setting to
Disabled.
The one hour equalization timer will continue to run even if there is insufficient
power from the PV array to support this charge mode.
To determine when battery equalization is complete:
◆ Follow the battery manufacturer's recommendations for equalizing the
batteries. These recommendations will include methods such as monitoring
the specific gravity (SG) of the electrolyte using a battery hygrometer and
stopping the equalization when the SG has stopped increasing.
• If the recommended point is reached before the automatic one hour
equalization timer runs out, then manually stop the equalization by
changing the setting to Disabled.
• If the recommended point is not reached after one hour, the charge
controller will automatically exit the equalization stage. You can re-start
equalization by following the process above and continue equalizing
until the battery manufacturer's recommendation is met.
To manually stop battery equalization:
1. On the Setup Menu, scroll to Equalize, and then press Enter.
2. Change the setting to Disabled.
Equalization stops, and the charge controller goes to either the float or no
float stage, depending on the charge mode selected.
NOTICE
The Xantrex XW Hybrid Inverter/Charger and PDP will not be damaged by
equalization voltage and do not need to be disconnected during equalization.