Page 27 Mast Series - Operator’s Manual
April 2021Section 8 - Operating Instructions
Battery and Charger Instructions
Observe and Obey:
Do not use an external charger or booster battery.
Charge the battery in a well-ventilated area.
Use proper AC input voltage for charging as indicated on the charger.
To Charge Battery
Be sure the battery is connected before charging.
Maintenance - Free Battery
Connect the battery charger to a grounded AC circuit.
The charger will indicate when the battery is fully charged.
Standard Battery
Remove the battery vent caps and check the battery acid level. If necessary, add only enough
distilled water to cover the plates. Do not overfill prior to the charge cycle.
Replace the battery vent caps.
Connect the battery charger to a grounded AC circuit.
The charger will indicate when the battery is fully charged.
Check the battery acid level when the charging cycle is complete. Replenish with distilled water
to the bottom of the fill tube. Do not overfill.
Dry Battery Filling and Charging Instructions
Remove the battery vent caps and permanently remove the plastic seal from the battery vent
openings.
Fill each cell with battery acid (electrolyte) until the level is sufficient to cover the plates.
Do not fill to the maximum level until the battery charge cycle is complete. Overfilling can cause the
battery acid to overflow during charging. Neutralize battery acid spills with baking soda and water.
Install the battery vent caps.
Charge the battery.
Check the battery acid level when the charging cycle is complete. Replenish with distilled water
to the bottom of the fill tube. Do not overfill.
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