Manufacturer code: BMS400100300

smallBMS NG

The smallBMS NG is an all-in-one Battery Management System (BMS) for Victron Lithium NG batteries. It monitors and protects the batteries by managing charge and load disconnects and providing a pre-alarm for low battery voltage.

It is a straightforward and cost-effective alternative to the VE.Bus BMS NG for applications that do not require integration with Victron inverter/chargers. It provides essential lithium battery protection without VE.Bus communication and is therefore not suitable for use with VE.Bus inverter/chargers such as MultiPlus and Quattro.

With built-in Bluetooth it connects directly to all Lithium NG batteries in the system for central monitoring via VictronConnect, and receives current and state of charge data directly from the batteries, so no separate SmartShunt is needed.

The lithium NG batteries can be configured in series, parallel, or a combination of both, supporting 12V, 24V and 48V systems. A maximum of 50 batteries can be used in 12V or 24V banks, and 25 batteries in 48V banks, enabling up to 192 kWh (12V), 384 kWh (24V) and 128 kWh (48V) of storage.

Compatibility: Victron Lithium NG batteries only. Not compatible with the Lithium Battery Smart range.

Key features:

• Load disconnect output: controls the remote on/off input of a BatteryProtect, inverter, DC-DC converter or other loads with remote on/off, to prevent deep discharge.
• Charge disconnect output: controls the remote on/off port of chargers such as the Smart IP43 Charger, a Cyrix-Li-Charge relay, a Cyrix-Li-ct Battery Combiner or a BatteryProtect, to prevent overvoltage.
• Pre-alarm output: early warning for low battery voltage before loads are disconnected. Can drive a relay, LED or buzzer.
• Remote on/off control: external control of both the load and charge disconnect outputs.
• LED indicators: blue LED for Bluetooth status and red LED for warnings and errors.

Documents & Downloads:

Datasheet

Enclosure dimensions

BMS NG overview

Certificate Automotive E4 10-6

ISO9001 Certificate