Victron SmallBMS With Pre-Alarm Description: 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. Parameter Value Operating voltage (Vbat) 8 – 70 VDC Recommended fuse size 0.3 A - 2.5 A, dependent on devices connected to Load disconnect and pre-alarm output Current consumption, remote on 2.2 mA (excluding Load and Charge disconnect output current) Current consumption, low cell voltage 1.2 mA Current consumption, remote off 1.2 mA Load disconnect output Normally high (Vbat – 0.1 V), Source current limit: 1A (not short circuit protected), Sink current: 0A (output free floating) Charge disconnect output Normally high (Vbat –0.6 V), Source current limit: 10mA (short circuit protected), Sink current: 0A (output free floating) Pre-alarm output Normally free floating, In case of alarm: output voltage Vbat -0.1 V, Maximum output current: 1A (not short circuit protected) Remote on/off Remote L and Remote H Use modes:1. ON when the L and H terminal are interconnected2. ON when the L terminal is pulled to battery minus (V
