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Victron VE.Bus BMS V2 Battery Management System

Brand:
Victron Energy
Part no:
BMS300200200

Where to buy

Specifications

Type
Bms
System voltage
12,8 V and 25,6 V batteries
Works with
Victron Lithium Battery Smart 12,8V & 25,6V (LiFePO4)

The VE.Bus BMS V2 is a battery management system for Victron Lithium Battery Smart 12,8V and 25,6V batteries used with inverters or inverter/chargers on VE.Bus. It raises a pre-alarm when a cell is heading toward under voltage and shuts off loads or charging through its disconnect outputs. It runs from a 9 to 70 V DC supply, has 2 RJ45 sockets for VE.Bus, and draws 10 mA in regular operation. The case is rated IP20 and the operating range is -20 to 50 °C.

Our take

The pre-alarm output warns of an imminent cell under voltage before loads are cut, which gives some time to act. It is made for Victron inverters or inverter/chargers on VE.Bus, so it fits a system built around other inverter brands poorly.

From our buying guide

BCI defines a battery management system as an electronic system that monitors a battery's condition, performance and health. Some lithium batteries have one built in and some need an external unit.

Check before you buy:

  • Battle Born warns that a BMS shutdown leaves the vessel without power, and that one during alternator charging can severely damage the alternator.
  • There is no one low-temperature limit for charging lithium, so take it from the manual for the battery you have.

Sources