smallBMS NG
The SmallBMS NG is a simple and cost-effective alternative to the VE.Bus BMS NG for applications that do not require integration with Victron inverter/chargers. The SmallBMS NG provides essential lithium battery protection without the added complexity of VE.Bus communication and is therefore not suitable for use with VE.Bus inverter/chargers such as the MultiPlus and Quattro.
With built-in Bluetooth, it connects directly to all lithium NG batteries in the system for central monitoring via VictronConnect. It also receives power and charge status data directly from the batteries, so no separate SmartShunt is required.
The lithium NG batteries can be connected in series, parallel, or a combination of both, and support 12V, 24V, and 48V systems. A maximum of 50 batteries can be used in 12V or 24V banks and 25 batteries in 48V banks, allowing for up to 192 kWh (12V), 384 kWh (24V), and 128 kWh (48V) of storage. Multiple SmallBMS NG units can be connected in parallel to expand capacity and ensure redundancy.
Main features:
- Load Disconnect output: Controls the remote on/off input of a BatteryProtect, inverter, DC-DC converter, or other loads with remote on/off functionality 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: Provides early warning of low battery voltage before switching off loads. Can control a relay, LED, or buzzer.
- Remote on/off control: Allows external control of both Load and Charge Disconnect outputs.
- LED Indicators: Includes a blue LED for Bluetooth status and a red LED for warnings and errors.