smallBMS with pre-alarm
A simple and low cost alternative to the VE.Bus BMS V2
The smallBMS can replace the VE.Bus BMS V2 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 smallBMS is intended for use with Victron Smart LiFePo4 batteries with M8 circular connectors.
The smallBMS has two outputs, similar to the VE.Bus BMS V2.
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VE.Bus BMS / VE.Bus BMS V2
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Based on the status of the battery or batteries, the BMS will:
- Generate a pre-alarm signal to alert of an imminent cell under voltage condition.
- Disable inverting in VE.Bus inverters or inverter/chargers via VE.Bus, and disable other loads via the ‘Load Disconnect’ terminal in the event of a cell under voltage condition.
- Disable charging in VE.Bus inverters or inverter/chargers via VE.Bus and disable other chargers via the ‘Charge Disconnect’ terminal in the event of a cell overvoltage, under temperature or over temperature condition.
- Remote on/off terminals.
- Ability to disable VE.Direct and VE.Can solar chargers via a GX device.
- Allowing control of the VE.Bus inverter/charger from multiple devices, like the Digital Multi Control, the VE.Bus Smart dongle and/or a GX device.
- Auxiliary power input and output terminals that allow a GX device to remain powered in the event of a system shutdown.