Battery

SSB Fusion LFPC12-260 260Ah wiring diagram

Fusion Lithium Core 12.8V 260Ah LiFePO4 with internal BMS and Bluetooth. 200A continuous discharge; uses the recommended 130A charging value, with charging limited to 0–45°C.

Nominal voltage
12.8 V
Capacity
260 Ah
Maximum discharge
200 A

Wiring diagram

How the SSB Fusion 260 is wired.

Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.

SSB Fusion LFPC12-260 260Ah wiring example with 4 components: SSB Fusion 260, Battery disconnect, Fused DC distribution, DC fridge. 5 cable connections. Crossings are not junctions.Fused DC distribution 1 to DC fridge +: 4 mm² · 15 A fuse, 3 m one way. Fused DC distribution 1 to DC fridge −: 4 mm², 3 m one way. SSB Fusion 260 + to Battery disconnect A: 4 mm² · 15 A fuse, 3 m one way. Battery disconnect B to Fused DC distribution IN +: 4 mm² · 15 A fuse, 3 m one way. SSB Fusion 260 − to Fused DC distribution IN −: 4 mm², 3 m one wayFused DC distribution 1 to DC fridge +: 4 mm² · 15 A fuse, 3 m one wayFused DC distribution 1 to DC fridge −: 4 mm², 3 m one waySSB Fusion 260 + to Battery disconnect A: 4 mm² · 15 A fuse, 3 m one wayBattery disconnect B to Fused DC distribution IN +: 4 mm² · 15 A fuse, 3 m one waySSB Fusion 260 − to Fused DC distribution IN −: 4 mm², 3 m one waySSB Fusion LFPC12-260 260AhSSB Fusion 260++−−Main Battery SwitchBattery disconnectABBlue 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++−−4 mm² · 15 A fuse4 mm²4 mm² · 15 A fuse4 mm² · 15 A fuse
SSB Fusion LFPC12-260 260Ah wiring example with 4 components: SSB Fusion 260, Battery disconnect, Fused DC distribution, DC fridge. 5 cable connections. Crossings are not junctions.Red = positive · dark = return · dashed = signal. Wire sizes and fuse ratings are example values; use the equipment instructions and actual installation lengths.
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Cable sizing for this example

Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.

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

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Installation notes

Before you install.

Open a question for model-specific guidance and sources.

Verified against the manufacturer's documentation, checked 2026-10-01. Manufacturer documentation →

Match LFPC12-260 before installation

This entry is the Fusion Lithium Core LFPC12-260, a 12.8 V, 260 Ah, 3328 Wh LiFePO4 battery with an integrated balancing/protection BMS and Bluetooth. The exact-model manufacturer specification, PDF page 1 is available. A matching full operating manual was not located in the public resource center; the specification itself refers to a separate Fusion user's manual. Obtain that document with the physical battery before installation.

Use continuous ratings for the load budget

The specification allows 200 A continuous discharge and 600 A for five seconds. It gives 130 A recommended charging and 200 A maximum charging. Crimp retains 130 A as the charging planning value and 200 A discharge. Its 400 A terminal allowance does not establish a 400 A continuous battery rating.

Design normal shutdown around the recommended 10 V disconnect, rather than repeatedly reaching the BMS's 8 V protective cutoff. The listed recovery voltage is 9.2 V. A cutoff can remove the whole battery from a bank, changing the current borne by the remaining batteries.

Set charging within the thermal range

The charge specification is CC-CV at 14.4–14.8 V, with 13.8 V recommended float. Charge only at 0–45°C; discharge is listed at −20–60°C. The separate BMS low-temperature cutoff is −10°C, with recovery at 0°C. That protective threshold does not extend the permitted charging range below freezing. No heater is established by this document.

Check terminals, mounting and protection

The case measures 522 × 240 × 224 mm and weighs 28.1 kg. It uses M8 terminals; the drawing specifies an M8 × 1.0 threaded hole, 8 mm deep. That is hole geometry, not a universal bolt length. Check lug thickness and supplied hardware before selecting bolts. No terminal torque, installation orientation or external fuse prescription appears in the retrieved sheet. The installer needs those instructions rather than inferring them from another Fusion model. See dimensions, PDF page 2.

Confirm the complete bank arrangement

The sheet lists maxima of four batteries in series and 20 in parallel. It does not establish every combined series-parallel layout or mixed-model bank. Confirm the proposed topology and protection with the matching installation manual. Bluetooth uses the identification code on top of the battery; the Fusion Lithium app can display temperature, current and protection events, but monitoring does not replace circuit protection.

Technical reference

Specifications and terminal map.

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

Catalog specification

Fusion Lithium Core 12.8V 260Ah LiFePO4 with internal BMS and Bluetooth. 200A continuous discharge; uses the recommended 130A charging value, with charging limited to 0–45°C.

Nominal voltage
12.8 V
Capacity
260 Ah
Maximum discharge
200 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 SSB Fusion 260.

Open this example as a new project, or add this component to your existing diagram. Use your equipment and cable lengths to review the sizing.

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