MBT1015 rev-C
User’s Manual Version 18.08
Unfiltered [pulsating DC] electricity can damage expensive electronic
components, e.g., emissions computer, radio, charging system, etc.
Turn off all electrical switches and components; turn off the ignition
before disconnecting the battery.
For non-sealed batteries, check the electrolyte level. Make sure it is
covering the plates, and it is not frozen before starting to recharge
(especially during winters).
Do not add distilled water if the electrolyte is covering the top of the
plates because during the recharging process, it will get warm and
expand. After recharging has been completed, recheck the level.
Reinstall the vent caps BEFORE recharging, recharge ONLY in
well-ventilated areas, and wear protective goggle.
Do NOT smoke or cause sparks or flames while the battery is being
recharged because batteries give off explosive gasses.
If your battery is an AGM or a sealed flooded type, do NOT recharge
with current ABOVE 12% of the battery's RC rating (or 20% of the
ampere-hour rating).
Gel cells should be charged over a 20-hour period and never over the
manufacturer's recommended level or over 14.1 Volts DC.
Follow the battery and charger manufacturer's procedures for
connecting and disconnecting cables and other steps to minimize the
possibility of an explosion or incorrectly charging the battery.
You should turn the charger OFF before connecting or disconnecting
cables to a battery.
Do not wiggle the cable clamps while the battery is recharging, because
a spark might occur, and this could cause an explosion. Good
ventilation or a fan is recommended to disperse the gasses created by
the recharging process.
If a battery becomes hot, over 43.3 °C (110 °F), or violent gassing or
spewing of electrolyte occurs, turn the charger off temporarily or reduce
the charging rate.
When charging the battery in the car with an external MANUAL charger,
make sure that it will not damage the vehicle's electrical system or
components with high voltages.
Even if this is a remote possibility, it is best to disconnect the vehicle's
battery cables from the battery BEFORE connecting the charger.
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