User`s guide

165
17
The battery option, available on both standard and wireless MP-70/50
controls, provides an on-board power source that virtually eliminates the
need to plug the control into an AC-voltage outlet to operate a score
-
board. AC voltage is only required during battery recharge. When the bat-
tery option is combined with the wireless option, the MP-70/50’s
versatility is significantly enhanced.
The battery pack, which is housed inside the control, is a rechargeable
Nickel Metal Hydride (Ni-MH) cell assembly that has been exclusively
designed and packaged for use in Trans-Lux controllers. Under typical
operating conditions, it will generate a minimum of eight hours of control
power before recharging is required. The battery charge level is continu
-
ously monitored by the control’s main microprocessor and is displayed on
the LCD readout. The battery charger, supplied with the control, can be
plugged in and used to power the control at any time if the battery’s
charge is too low.
To maximize battery life, it is important to observe proper operating,
recharging and storage recommendations and precautions, which are out
-
lined in the remainder of this chapter. With proper care, the battery pack
should provide years of service.
Battery control features
The physical appearance of an MP-70/50 control equipped with the bat-
tery option is similar to AC-powered controls. The only difference is that
the back panel has a 5/8-inch diameter circular battery charge connection
port in lieu of a seven-foot power cord.
Battery
Option