Victron BatteryProtect 48V-100A

BatteryProtect 48V 100A by Victron Battery Protection

The BatteryProtect disconnects the battery from non-essential loads 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 48V batteries.

The BatteryProtect can be set to switch on and 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 charge breaker between a battery charger and a Li-ion battery. See wiring diagram in the manual.

This is important for lithium-ion batteries, especially after shutdown due to a low voltage level. Please also refer to our datasheet on lithium-ion batteries and the VE.Bus BMS manual for more 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 spark formation. Output for Delayed Alarm The alarm output is activated when the battery voltage drops below the preset shutdown 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 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 disconnected 90 seconds after the alarm is activated. If the battery voltage rises again to the connect threshold within this period (after the engine has been started, for example), the load will not be disconnected. The load is reconnected 30 seconds after the battery voltage has exceeded the specified reconnect voltage value.

Documents & Downloads

• Datasheet BatteryProtect 48V
• Manual BatteryProtect 48V