Victron Battery Protect 48V 100A Ignition Proof Over Voltage Protection (BPR048100400)

Warranty Option: Standard 5 Years Warranty
Sale price$242.00


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.


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. 

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 64 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.


Battery Protect BP 48-100
Maximum continuous load current 100A
Peak current 250A
Operating voltage range 24 –64V
Current consumption When on:2mA       Whenofforlowvoltageshutdown:1,5mA
Alarm output delay 12 seconds
Maximum load on alarm output 50 mA (short circuit proof)
Load disconnect delay 90 seconds (immediate if triggered by the VE.Bus BMS)
Load reconnect delay 30 seconds
Default thresholds Disengage: 42V Engage: 48V
Operating temperature range Full load: -40°C to +40°C (up to 60% of nominal load at 50°C)
Weight 0,8 kg   1.8 lbs
Dimensions (hxwxd) 62x123x120mm


Victron Energy warrants its products to be free from defects in workmanship and materials for a period of: Batteries: 2 year limited warranty Li-ion batteries: 3 year limited warranty All other products: 5 -year limited warranty.

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