Victron Battery protect BP 48-100

Victron Battery protect BP 48-100

BatteryProtect protects the solar battery by disconnecting it from non-essential loads before it is completely discharged (which would damage it) or before it has enough power left to start the motor.
With 7-segment display: easy to configure

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BatteryProtect: BP 48-100

Victron Battery protect BP...


"Protect your batteries: Battery Protect from Victron disconnects non-essential loads automatically."

Victron Energy's BatteryProtect automatically disconnects non-essential consumers from the battery before it is completely discharged (and damaged), or before it is too discharged to start the engine.


Victron batteryprotect 48-100

Easy programming

BatteryProtect can be configured to activate/deactivate at different voltage levels. The 7-segment display indicates which configuration has been chosen.

Special configuration for lithium-ion batteries

In this mode, the BatteryProtect can be controlled by the VE-Bus BMS.

Very low energy consumption

This is an important feature for lithium-ion batteries, especially after a low-voltage stop.

Please consult our lithium-ion battery data sheet and the VE.Bus BMS manual for more information.

Protection against overvoltage and combustion

> To protect sensitive equipment from overvoltage, the load is automatically disconnected when DC voltage exceeds 16 V or 32 V.

> To protect devices against combustion: no relays, but MOSFET transistors, so there's no sparking.

Delayed alarm output

The alarm output is activated if the battery voltage drops below the preset disconnection level for more than 12 seconds. Starting the motor will therefore not activate the alarm. The alarm output is a short-circuit-proof open-collector output connected to the rail (negative), maximum current 50 mA. The alarm output is generally used to activate a buzzer, LED or relay.

Load disconnection and reconnection times

The load will be disconnected 90 seconds after the alarm is activated. If the battery voltage rises again to the connection threshold during this period (when the motor has been started, for example), the load will not be disconnected.

The load will be reconnected 30 seconds after the battery voltage exceeds the preset load reconnection voltage.

Technical data



Maximum continuous charging current

100 A

Peak power 250 A
Operating voltage range 24-64 A
Current consumption If switched on: 2mA If off or if switched off in case of low voltage:
0.8 mA
Alarm output delay 12 seconds
Maximum load on alarm output 50 mA (short-circuit protection)
Time to load disconnection 30 seconds
thresholds Disable:
42V On: 48 V
Operating temperature range Full load:-40°C to +40°C (up to 60% of rated load at 50°C
.8 kg
Dimensions (H x W x D) 62 x 123 x 120 mm
BatteryProtect BP-48-100

Battery protect de victron

(Datasheet download)

501 Items

Specific References



Datasheet Victron BP 48-100 FR

Download (189.38KB)

Datasheet Victron BP 48-100 EN

Download (215.58KB)

Manual Victron BP 48-100 EN-FR

Download (512.56KB)