LiFePO4 Smart 12.8/330

Victron LiFePO4 Smart 330Ah wiring diagram

Plan the Victron LiFePO4 Smart 330Ah DC power path with its required Lynx Smart BMS and a BatteryProtect load disconnect. Complete the battery data and shutdown controls from the manufacturer diagram before installation.

Nominal voltage
12.8 V
Capacity
330 Ah
Maximum discharge
400 A

Wiring diagram

DC power path for the LiFePO4 Smart 330Ah.

The drawing includes the required battery-management and load-disconnect hardware. Battery data and shutdown control leads are not represented by these symbols; use the complete manufacturer instructions to connect and test them.

Victron LiFePO4 Smart 330Ah wiring example with 5 components: LiFePO4 Smart 330Ah, Lynx Smart BMS, BMS-controlled load disconnect, Fused DC distribution, DC fridge. 8 cable connections. Crossings are not junctions.LiFePO4 Smart 330Ah + to Lynx Smart BMS BATT +: 6 mm², 20 cm one way. LiFePO4 Smart 330Ah − to Lynx Smart BMS BATT −: 6 mm², 50 cm one way. Lynx Smart BMS BUS + to BMS-controlled load disconnect IN: 6 mm² · 15 A fuse, 30 cm one way. BMS-controlled load disconnect OUT to Fused DC distribution IN +: 6 mm² · 15 A fuse, 50 cm one way. Lynx Smart BMS BUS − to Fused DC distribution IN −: 6 mm², 1 m one way. Lynx Smart BMS BUS − to BMS-controlled load disconnect GND: 0.3 A sense fuse, 50 cm one way. Fused DC distribution 1 to DC fridge +: 6 mm² · 15 A fuse, 1 m one way. Fused DC distribution 1 to DC fridge −: 6 mm², 1 m one wayLiFePO4 Smart 330Ah + to Lynx Smart BMS BATT +: 6 mm², 20 cm one wayLiFePO4 Smart 330Ah − to Lynx Smart BMS BATT −: 6 mm², 50 cm one wayLynx Smart BMS BUS + to BMS-controlled load disconnect IN: 6 mm² · 15 A fuse, 30 cm one wayBMS-controlled load disconnect OUT to Fused DC distribution IN +: 6 mm² · 15 A fuse, 50 cm one wayLynx Smart BMS BUS − to Fused DC distribution IN −: 6 mm², 1 m one wayLynx Smart BMS BUS − to BMS-controlled load disconnect GND: 0.3 A sense fuse, 50 cm one wayFused DC distribution 1 to DC fridge +: 6 mm² · 15 A fuse, 1 m one wayFused DC distribution 1 to DC fridge −: 6 mm², 1 m one wayVictron LiFePO4 Smart 330Ah. 30 A MRBF is an illustrative source fuse for this small fridge circuit, not a battery maximum-current recommendation. Verify the fuse's interrupt capacity and terminal hardware for this battery. DC power paths with a compatible Lynx Smart BMS and BatteryProtect load disconnect. Connect the required battery BMS chain and ATD-to-BatteryProtect control before use; those terminals are absent from the symbols. Add the required charge-stop controls for any charger. BMS shutdown operation is not verified by the drawing.LiFePO4 Smart 330Ah30 A MRBF at battery +++−−Victron Lynx Smart BMS 500. Connect the matching Lithium Battery Smart BMS chain. Wire the Lynx ATD dry contact between BatteryProtect's two remote terminals before backup contactor shutdown; configure lithium mode. These control/data leads are absent from the catalog symbols. Add ATC/DVCC shutdown for every charger when extending this load-only example.Lynx Smart BMSBATT +BATT +BATT −BATT −BUS +BUS +BUS −BUS −Victron BatteryProtect 100. BatteryProtect IN is battery-side and OUT supplies the loads. Wire the Lynx ATD dry contact between the two remote terminals. Configure lithium mode. The GND reference has the manual's separate 300 mA fuse and 1.5 mm² conductor; never use it as a load return. Remote-control terminals are not drawn.BMS-controlled loaddisconnectINOUTGNDGNDBlue Sea 5025 ST Blade Fuse BlockFused DC distributionIN +IN +IN −IN −1111Dometic CRX-65 Fridge. This 12 V example uses Dometic's 15 A supply protection and a short 1 m run with 6 mm² cable. Check the manual's voltage-specific cable graph for your route. At 24 V, the specified protection is 7.5 A. Running current and the fuse rating describe different things.DC fridge++−−6 mm²
Victron LiFePO4 Smart 330Ah wiring example with 5 components: LiFePO4 Smart 330Ah, Lynx Smart BMS, BMS-controlled load disconnect, Fused DC distribution, DC fridge. 8 cable connections. Crossings are not junctions.DC power paths with a compatible Lynx Smart BMS and BatteryProtect load disconnect. Connect the required battery BMS chain and ATD-to-BatteryProtect control before use; those terminals are absent from the symbols. Add the required charge-stop controls for any charger. BMS shutdown operation is not verified by the drawing. Red = positive · dark = return · dashed = signal. Wire sizes and fuse ratings are example values; use the equipment instructions and actual installation lengths.
Edit this DC power path

DC power-path sizing

The example supplies a small fridge circuit through compatible battery management and load-disconnect hardware. Its power paths do not verify the required BMS communication, remote control or shutdown behavior.

Cable sizes depend on the connected equipment, current and cable lengths. Add those details in Crimp to size each run.

View diagram in AWG

Installation notes

Before you install.

Open a question for model-specific guidance and sources.

Verified against the manufacturer's documentation (rev. 21 — 01/2026), checked 2026-10-01. Manufacturer documentation →

Identify Lithium Battery Smart 12.8/330

This is the 12.8 V, 330 Ah Lithium Battery Smart, with Bluetooth cell monitoring and balancing. It needs a compatible external Victron BMS to protect the complete system. The newer Lithium NG range uses different BMS equipment. Match the Smart designation before choosing the BMS and its control wiring. See technical data, printed pages 35–36.

Understand the current values

The model-specific table gives 400 A maximum continuous discharge, 300 A recommended continuous discharge, 400 A maximum charging and 150 A recommended charging. Crimp uses 400 A discharge and retains the recommended 150 A charging value. Those values do not override lower limits of the selected BMS, cables, fuses or connected equipment.

Capacity also depends on temperature: the table gives 260 Ah at 0°C and 160 Ah at −20°C, versus 330 Ah at 25°C. Plan winter reserve from the relevant temperature rather than treating nominal capacity as constant.

Wire shutdown control as well as power

Use M10 power terminals tightened to 20 Nm, with the lug directly on the terminal and washers above. Select positive-side protection for the cable, battery and system; the 400 A battery rating alone does not determine the fuse. Mount in a dry indoor location, upright only for this 330 Ah model, and allow 20 mm ventilation space on all four sides. See installation, printed page 16.

The two M8 three-pole BMS leads are separate control connections. Daisy-chain them through the bank and connect both ends to the BMS. Ensure that every charging source and load can be stopped; Bluetooth alone provides no disconnect function.

Charge and commission the complete system

Set 14.2 V absorption for two hours, 13.5 V float, and disable charger temperature compensation. Charging is permitted only at +5 to +50°C; discharge is specified at −20 to +50°C. Confirm charger shutdown when the BMS disallows charging. See charging and operating conditions, printed pages 23–24.

Fully charge and balance individual batteries before making a series bank. The manual permits up to four 12.8 V batteries in series and 20 batteries total in parallel or combined banks. Fuse individual parallel batteries or series strings and the positive main feed, maintain balanced current paths, and do not tap series midpoints. Follow bank wiring and commissioning, printed pages 17–21.

Technical reference

Specifications and terminal map.

Check the model, ratings and connection points against your own unit before choosing installation hardware.

Catalog specification

Lithium Battery Smart 12.8V 330Ah with Bluetooth cell monitoring. Requires a compatible external BMS; 400A maximum discharge and 150A recommended charging.

Nominal voltage
12.8 V
Capacity
330 Ah
Maximum discharge
400 A

Terminal map

Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.

+

positive · bidi

400 A

−

negative · bidi

400 A
Sources and sizing method

Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.

Example sizing. Wire sizes and fuse ratings apply to the connected example, not a fixed cable size for this component. Set your actual equipment, current, lengths and installation conditions in Crimp before choosing hardware.

Read how the sizing works

Next step

Plan your installation with LiFePO4 Smart 330Ah.

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