Mastervolt Battery Watch battery monitoring battery disconnect switch

An essential part of a well-equipped battery system, the Mastervolt Battery Watch (MPN 83200150) offers a 600g electronic watchdog that guarantees your batteries a much longer lifespan. The device monitors the optimal condition of your batteries and can also be used as a main battery disconnect switch. LED lights allow for a clear display. The undervoltage can be set to 6 different levels using DIP switches, the same applies to overvoltage. The Battery Mate automatically recognizes the correct battery voltage (12V / 24V).

The Mastervolt Battery Watch switches off the connected load at:

• Undervoltage: the battery voltage is lower than the set voltage reference (U-low.off). The load will turn on again when the battery voltage is higher than the turn-on reference (U-low-on). Due to the switching delay of 30 seconds, the Battery Watch is insensitive to short-term voltage fluctuations.
• Overvoltage: the battery voltage is higher than 15.5V/31.0V (U-high.off). The load will be switched on again when the battery voltage is lower than 15.0V / 30.0V (U-high.on) again. The Battery Watch may only be used on 12VDC and 24VDC systems with negative ground.

Important technical characteristics

• Input voltage DC: 8-32V
• max current (DC): 150A
• can be used as a battery disconnect switch
• solid battery protection against overvoltage and undervoltage
• flexible because the voltage levels can be regulated