Victron BatteryProtect 48V-100A

BatteryProtect 48V 100A by Victron Battery Protection

The BatteryProtect disconnects the battery from non-essential loads before it is fully discharged (which would damage it) or before it no longer has enough energy to start the engine.
The device is designed for 48 V batteries.

The BatteryProtect can be set to switch on or off at several different voltages. The seven-segment display then indicates which setting has been selected.

In this mode, the BatteryProtect can be controlled by the VE.Bus BMS. Note: The BatteryProtect can also be used as a load break between a battery charger and a lithium-ion battery. See the wiring diagram in the manual.

This is important in the case of lithium-ion batteries, especially after switching off due to a low voltage level. Please also refer to our data sheet on lithium-ion batteries and the VE.Bus BMS manual for further information.

To prevent sensitive loads 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 falls below the preset cut-off value for more than 12 seconds. Starting the engine therefore does not activate the alarm. The alarm output is a short-circuit protected open collector output, which is connected to the negative (minus) rail. Max. current 50 mA. The alarm output is normally used to activate an audible signal, an LED or a relay.

The load is switched off 90 seconds after the alarm is activated. If the battery voltage rises back to the reconnection threshold within this period (for example, after the engine has been started), the load will not be switched off. The load is reconnected 30 seconds after the battery voltage has exceeded the specified reconnection voltage value.