Smart BatteryProtect 12/24V-65A

Smart BatteryProtect 12/24V 65A

The BatteryProtect disconnects the battery from the 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 BatteryProtect is a unidirectional device. It only allows current in one direction, i.e. either current to a consumer or current from a charging source, but not in both directions at the same time. In addition, the current can only flow from the battery connection to the consumer connection. When used with a load, the battery must be connected to the battery connection; when used with a charger, the charger must be connected to the battery connection.

By using Bluetooth to programme the Smart BatteryProtect, all required switch-on/switch-off threshold values can be set.
Alternatively, one of nine preset switch-on/switch-off threshold values can be set using the programming pin

The Bluetooth function can be switched off if necessary.

12/24 V automatic detection of the voltage range

The BatteryProtect automatically recognises the system voltage.

Simple programming

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.

A special setting for lithium-ion batteries

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 connection diagram in the manual.

Extremely low power consumption

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 more information.

Overvoltage protection

To prevent sensitive loads from being damaged by overvoltage, the load is always switched off if the DC voltage exceeds the value of 16 V or 32 V.

Explosion protection

No relays but MOSFET switches and therefore no sparking.

Output for delayed alarm

The alarm output is activated if the battery voltage falls below the preset value for switching off for more than 12 seconds. Switching on the motor 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.

Load switch-off and reconnection delay

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