Daktronics MS-2113, Manual

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Battery Care & Charging
13
• Be extra cautious while servicing the display to reduce the risk of dropping a tool onto
the battery. It might spark or short-circuit the battery or another electrical part, which
could cause an explosion.
• Remove all personal metal items such as rings, watches, and other jewelry when
working with a lead-acid battery. A lead-acid battery can produce a short-circuit
current high enough to weld a ring or similar item to metal, causing severe burns.
• Use the charger for charging LEAD-ACID batteries only. It is not intended to recharge
common dry cell batteries, which may burst and cause injury to people and damage
to property.
• NEVER charge a frozen battery.
DC Connection Precautions
1� Check the polarity markings on the battery.
2� Attach the positive ring terminals (red or white wires with fuse) from each cable on
the charger to the positive (+) terminals of the batteries.
3� Attach the negative ring terminals (black wires) from each cable on the charger to
the negative (–) terminals of the batteries.
4� When disconnecting the charger, first disconnect (unplug) the AC power cord,
then remove the negative ring terminal from the battery's negative (–) terminal, and
remove the positive (+) ring terminals last.