Victron SmallBMS NG [BMS400100300]
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SmallBMS NG
The SmallBMS NG is an all-in-one Battery Management System (BMS) designed for Victron Lithium NG batteries (not compatible with lithium smart batteries). It monitors and protects the batteries by managing charge and load disconnects and providing pre-alarms for low battery voltage.
The SmallBMS NG is a straightforward and cost-effective alternative to the VE.Bus BMS NG for applications that don’t require integration with Victron inverter/chargers. It provides essential lithium battery protection without the added complexity of VE.Bus communication 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. It also receives current and state of charge data directly from the batteries, so there’s no need for a separate SmartShunt.
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. Multiple Lynx Smart BMS units can be paralleled to expand capacity and ensure redundancy.
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 for low battery voltage before disconnecting loads. Can drive 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.
Quick Guide (pdf)
Owner's Manual (pdf)
Brochure (pdf)
30-Day Returns & Fast Shipping
Most eligible items may be returned within 30 days of delivery. Items must be unused, uninstalled, and returned in their original condition with all original packaging, accessories, hardware, and components.
Returns caused by ordering the wrong item, incorrect vehicle or product fitment, incorrect size or quantity, accidental purchase, change of mind, or other customer error are subject to a minimum 20% restocking fee. Depending on the condition of the returned product, packaging, missing components, or other factors affecting resale value, the restocking fee may be increased up to a maximum of 50% of the product price. Customer-error returns may also be subject to return shipping costs.
Restocking fees do not apply when we verify that the wrong item was shipped by us or that the product arrived damaged or defective through no fault of the customer. Please contact 4Falcons before returning any item so we can provide return authorization and instructions.
Orders are processed and shipped as quickly as possible. Delivery dates are estimates and may be affected by carrier delays, weather, holidays, incorrect addresses, or other circumstances outside our control. Tracking information will be provided when available.
Please verify vehicle, RV, marine, or equipment compatibility before placing your order. Installed, used, modified, damaged, incomplete, or otherwise non-resalable products may receive a reduced refund or may not be eligible for return.
