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Victron BatteryProtect 220A 12V/24V battery over discharge protector BP-220

Victron BatteryProtect 220A 12V/24V battery over discharge protector BP-220

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Protects a 12V or 24V battery or battery bank from being over-discharged by shutting off external loads when the battery voltage is low.

SPECIAL NOTICE : If you are purchasing this part for a self build project, please see our terms & conditions. FULFILLED BY PHOTONIC UNIVERSE : This product is fulfilled by Photonic Universe, our Solar partner.



Photonic Universe is an official distributor of products from Victron Energy - the globally renowned manufacturer of high quality hybrid power electronics. Victron Energy products have a longstanding reputation for their outstanding reliability, innovative design and superior build quality.

This Victron 220A 12/24V automatic battery protector offers protection for the discharging of your battery system, preserving your battery health and protecting appliances.


  • Low voltage disconnect: when battery charge is low, the Battery Protect disconnects the battery from nonessential loads to avoid deep discharge and preserve battery health.

  • Programmable low-voltage threshold: easily customise the disconnect threshold based on discharging needs.

  • Overvoltage disconnect: when battery voltage gets too high, the BatteryProtect disconnects the loads to protect them from damage.

  • Automatic system recognition: the BatteryProtect detects the system voltage (12V or 24V) on start-up, allowing easy installation and setup.

  • Ultra-low current consumption: avoid further drain on the battery to preserve battery level, especially after low voltage disconnect.

  • Remote switch and alarm connections: connect input and output relays to control the BatteryProtect remotely, manually turn loads on and off, and use custom alarm systems.

  • Compatible with Lithium batteries: specialised modes for use with Ve.Bus Lithium battery management systems, and as a charge interrupter for Lithium charging.

Click on the Details and specifications tab for more information about this product.

Details & Specification


System Specifications:

  • Nominal battery voltage: 12V / 24V
  • Operating voltage range: 6 - 35V
  • Maximum continuous current: 220A
  • Peak current (30 seconds): 600A
  • Current draw: <1.5mA active, <0.6mA during disconnect
  • Alarm Relay: 50mA
  • Operating temperature range: -40°C to +40°C (up to 60% capacity at 50°C)



  • Dimensions: 62 x 123 x 120 mm
  • Weight: 800g
  • M8 terminals


Additional items:

  • Negative cable: 50cm length, 1.5mm2 cross section
  • 2 pin dry-contact socket for remote switch
  • 3 pin dry-contact socket for negative cable, alarm and programming input


This product is covered by a 5 year manufacturer warranty. For more information please refer to our Terms and Conditions.

Click on the Installation tab for further instructions.



This unit comes with a detailed user manual which explains connection and operations. A technical drawing of the product dimensions is also available to download in the 'Documents' tab.

Please note:

  • The BatteryProtect should be connected on the positive battery wire, close to the battery.
  • This product is suitable for one-directional current flow only. Do not install in between battery and battery charger except for in specialised systems. See manual for further details.


The following videos provide a brief overview of how to use the BatteryProtect and how to program the settings:


If you need help with installation or have any technical questions we can provide FREE support - please contact us by email or phone (see our Contact Us page for more information).


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