Victron miniBMS; to suit Victron Smart Lithium Batteries

The miniBMS can replace the VE.Bus BMS in several applications. It is however not suitable for use with VE.Bus MultiPlus and Quattro inverter/chargers: it has no VE.Bus interface. The miniBMS is intended for use with Victron Smart LiFePo4 batteries with M8 circular connectors. 

The miniBMS has two outputs, similar to the VE. Bus BMS. 

Specifications:

• Normal operating Input voltage range (Vbat) 8 – 70V DC
• Current draw, normal operation 2.2 mA (excluding Load output and Charger output current)
• Current draw, low cell voltage 1.2mA
• Current draw, remote off 1,2 mA
• Load output:
  • Normally high (Vbat – 0.1V)
  • Source current limit: 1A (not short circuit protected)
  • Sink current: 0A (output free floating)
• Charger output:
  • Normally high (Vbat –0.6V)  
  • Source current limit: 10mA (short circuit protected)
  • Sink current: 0A (output free floating)
• Pre-alarm:
  • Normally free floating
  • In case of alarm: output voltage Vbat -0.1V
  • Maximum output current: 1A (not short circuit protected)
• System on/off: Remote L and Remote H Use modes of the system on-off:
  • a. ON when the L and H terminal are interconnected (switch or relay contact)
  • b. ON when the L terminal is pulled to battery minus (V< 3.5V)
  • c. ON when the H terminal is high (2.9V < VH < Vbat)
  • d. OFF in all other conditions
• Operating temperature -20 to +50°C 0 - 120°F
• Humidity - Max. 95% (non-condensing)
• Protection grade -IP20
• Material and colour - ABS, matt black
• Weight - 0.1kg
• Dimensions (d x w x h) - 23 x 42 x 106 mm