Victron BatteryProtect 48V-100A

BatteryProtect 48V 100A from Victron battery protection

The BatteryProtect disconnects the battery from less important consumers before it is completely discharged (which would damage it) or before it no longer has enough energy to start the engine.
The device is for 48 V batteries.

The BatteryProtect can be set to turn on or off at several different voltages. The seven-segment display then indicates the selected setting.

In this mode, the BatteryProtect can be controlled by the VE.Bus BMS. Note: The BatteryProtect can also be used as a charge breaker between a battery charger and a Li-ion battery. See the connection diagram in the manual.

This is important for lithium-ion batteries, especially after shutdown due to low voltage levels. Please refer to our lithium-ion battery datasheet and the VE.Bus BMS manual for further information.

To prevent sensitive consumers from being damaged by overvoltage, the load is always switched off when the DC voltage exceeds 64 V.

No relays, but MOSFET switches, and therefore no sparking. Delayed alarm output. The alarm output is activated when the battery voltage drops below the preset shutdown level for more than 12 seconds. Therefore, starting the engine does not activate the alarm. The alarm output is a short-circuit protected open collector output connected to the negative (minus) rail. Maximum current 50 mA. The alarm output is typically used to activate an audible signal, an LED, or a relay.

The load will be disconnected 90 seconds after the alarm is activated. If the battery voltage rises again to the reconnect threshold within this period (for example, after the engine has been started), the load will not be disconnected. The load will be reconnected 30 seconds after the battery voltage exceeds the preset reconnect threshold.