Xantrex XPLORE 120A 12V Owner's Manual page 58

Transitioning Power States
5. Carefully check the specific gravity of each cell and repeat
the equalization cycle until they all meet the battery
manufacturer's specifications for specific gravity or until the
specific gravity stabilizes relative to each other for an hour.
6. The charger automatically exits equalization to float/no float
mode or rest mode after one cycle. To manually exit
equalization mode early, repeat Step 3.
7. Check the battery electrolyte level. If necessary, refill with
distilled water only and repeat a normal charge cycle.
44 XPLORE 120/12 Battery Charger Owner's Guide