User`s guide

MP-70/50 Scoreboard Controller User’s Guide
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It is normal for battery controls to self-discharge over time, even when
they are switched off. The rate of self-discharge is dependent upon tem
-
perature, which means that the battery will discharge faster in higher tem-
peratures. To minimize this effect, observe the following:
• When the battery control is not in use, keep it in a cool, dry place
where the temperature is maintained between +55° and +90° F.
• If the battery control is not going to be used for extended periods of
time, such as during a sport’s off-season, fully charge the control
before putting it away for storage.
• Refresh the battery once every three months during long-term storage
by discharging the control to the “BATTERY VERY LOW” warning, and
then recharging.
Battery control safety and
precautions
• Use only the specified charger or equipment for the charging function.
Never modify the specified charger.
• Do not modify the MP-70/50 battery control’s electronics or wiring.
• Do not disassemble or modify the battery pack.
• Never use a damaged or worn out charger or battery. Periodically
inspect the charger and battery for signs of wear or damage.
• Keep the battery control and battery pack dry.
• Keep the battery control away from fire or other sources of extreme
heat. Overheated battery packs can expand, or burst and explode.
• Wear protective gloves and safety glasses and use extreme caution
when handling a damaged or leaking Nickel Metal Hydride battery
pack. The chemical inside the battery cells is strongly alkaline and can
cause injury to the eyes and skin, and damage to clothing.
• Never short-circuit the battery pack terminals. This could cause the
battery pack to overheat and burst, or explode.
• Do not expose the battery control to temperatures above +140° F
(+60°C), such as in a car parked in the sun, or under direct sunlight. If
you must use your control on hot, sunny days, try to keep it in a
shaded area, such as a baseball dugout or football press box.