Victron smallBMS NG Battery Management System
- Brand:
- Victron Energy
- Part no:
- BMS400100300
Image: Victron Energy
Where to buy
Specifications
- Type
- Bms
- System voltage
- 12V, 24V, 48V
- Works with
- Victron Lithium NG batteries
- Bluetooth
- Yes
Full data sheet
Victron Energy, part number BMS400100300
Technical
- Load disconnect output source current limit
- 1 A
- Current consumption - remote on
- 3 mA
- Maximum humidity (non-condensing)
- 95 %
- Operating temperature range
- -20 to 50 °C
- Current consumption - remote off
- 1.2 mA
- Current consumption - low cell voltage
- 1.2 mA
- Pre alarm output current rating (not short circuit protected)
- 500 mA
- Pre alarm output (not short circuit proof)
- Normally free floating - In case of alarm: output voltage Vbat -0.1 V
- Load disconnect Output
- Normally high (Vbat – 0.1V)
- Remote terminals
- Remote L and Remote H Use modes: 1. ON when the L and H terminal are interconnected 2. ON when the L terminal is pulled to battery minus (V <3.5 V) 3. ON when the H terminal is high (2.9 V <VH <Vbat) 4. OFF in all other conditions
- DC input operating voltage range
- 8 to 70 V
- Charge disconnect output source current limit
- 500 mA
- Charge disconnect output
- Normally high (Vbat – 0.1 V)
Connections
- Battery communication terminals
- Terminals with M8 circular connectors
- DC connector battery minus
- Screw terminals
- Power supply cable and fuse (not supplied)
- Recommended fuse size 0.3 A - 2.5 (dependent on devices connected to Load disconnect and pre-alarm output)
- Input/output terminals
- Screw terminals
Enclosure
- Width
- 42 mm (1.7 in)
- Weight
- 0.1 kg (0.2 lb)
- Protection category
- IP20
- Material
- ABS
- Height
- 106 mm (4.2 in)
- Depth
- 23 mm (0.9 in)
- Color
- Matt black with a blue sticker
Standards
- Automotive
- ECE R10-6
- Emission
- EN-IEC 61000-6-3, EN 55014-1
- Safety
- EN 60950
- Immunity
- EN-IEC 61000-6-1, EN-IEC 61000-6-2, EN 55014-2
The Victron smallBMS NG is a battery management system built for Victron Lithium NG batteries, not for Lithium Battery Smart ones. It handles charge and load disconnects and gives a pre-alarm for low battery voltage, with built-in Bluetooth. The case is 42 mm wide and rated IP20, and the DC input takes 8 to 70 V. It supports 12V, 24V and 48V systems. It is not suitable for VE.Bus inverter/chargers such as the MultiPlus and Quattro.
Our take
Built-in Bluetooth and battery data arriving straight from the batteries mean a bank on this BMS needs no separate SmartShunt. The trade is the VE.Bus side: it is not suitable for MultiPlus or Quattro inverter/chargers, so it only fits systems without them.
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.