Charging

Battery, charging

Follow battery charger manufacturer's instructions. Before testing a battery that has been charged, load battery with 15 amps for 1 minute to remove surface charge.


Battery with removable, caps

If water is added, fast charge battery for a few minutes after battery begins gassing (boiling). Slow charging current should be approximately 10% of battery capacity. Fast charging should be approximately 80-90% of battery capacity. Remove cell caps while charging.

WARNING: Gases given off during charging are explosive. Do NOT smoke or allow sparks or flame near a charging battery.
Battery charger MUST be turned off when connecting or disconnecting cables on battery.
"Boosting" a sulfated battery at a high charging rate can cause an explosion!

CAUTION:
- Do not allow battery charging voltage to exceed 17 volts.
- If battery begins gassing (boiling) violently when charging, REDUCE charging rate.
- Do NOT disconnect battery while engine is running.

- charge battery according to following table:





Sealed batteries

Only slow charge sealed batteries. Sealed batteries, sometimes called "maintenance free" will not accept high rate of charge, making it necessary to charge it for up to twice as long as battery with removable caps. Also, voltage reading will NOT increase as rapidly as when charging battery with removable caps.