Battery Option
MP-70/50
• MP-72/52 • MP-73/53 • PN 98-0002-29 • REV 1709.13
139
B
ATTERY STORAGE
If the control is not going to be used for extended periods of time, such as during
a sport’s off-season, then fully charge the battery before putting it away for
storage. Charge the battery once every three months during long-term storage.
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 temperature, which
means that the battery will discharge faster in higher temperatures. The battery
can be stored in temperatures between -40° to +140° F (-40°C to +60°C), but its
optimal storage ambient temperature range is +55°F to +90° F (12.7°C to
32.2°C) and optimal relative humidity of 50 percent.
B
ATTERY 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 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.
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.
Never dispose of the battery pack in fire. Also disposing of Li-ion
batteries in household or business trash containers may be prohibited in
some areas. Consult and comply with local ordinances for approved
disposal or recycling procedures.
Do not expose the battery control to excessive physical impact.
Never use the battery pack in any other device or for any other purpose.