Victron Battery Protect 65A-220A

The Battery Protect disconnects the battery from non essential loads before it is completely discharged (which would damage the battery) or before it has insufficient power left to crank the engine. This unit is unidirectional (current can only go one way) so best used for loads only and not as an isolator for your battery.

12 V/24 V auto ranging

The Battery Protect automatically detects system voltage

Programming made easy

The Battery Protect can be set to engage/disengage at several different voltages. The seven segment display will indicate which setting has been chosen.

A special setting for Li-ion batteries

In this mode the Battery Protect can be controlled by the VE.Bus BMS. Note: the Battery Protect can also be used as a charge interrupter in between a battery charger and a Li-ion battery.

Ultra low current consumption

This is important in case of Li-ion batteries, especially after low voltage shutdown. Please see our Li-ion battery datasheet and the VE.Bus BMS manual for more information.

Over voltage protection

To prevent damage to sensitive loads due to over voltage, the load is disconnected whenever the DC voltage exceeds 16 V respectively 32 V.

Ignition proof

No relays but MOSFET switches, and therefore no sparks.

Delayed alarm output

The alarm output is activated if the battery voltage drops below the preset disconnect level during more than 12 seconds. Starting the engine will therefore not activate the alarm. The alarm output is a short circuit proof open collector output to the negative (minus) rail, max. current 50 mA. The alarm output is typically used to activate a buzzer, LED or relay.

Delayed load disconnect and delayed reconnect

The load will be disconnected 90 seconds after the alarm has been activated. If the battery voltage increases again to the connect threshold within this time period (after the engine has been started for example), the load will not be disconnected. The load will be reconnected 30 seconds after the battery voltage has increased to more than the preset reconnect voltage.

Technical Files

Datasheet
Certificate
Declaration of Conformity