MOBI 12.8V 135Ah LiFePO4 deep-cycle battery for suitably matched caravan, camper, 4WD, marine and off-grid power systems. Its nominal capacity provides approximately 1,728Wh of stored energy, while the integrated BMS provides overcharge, over-discharge, short-circuit and temperature protection.

This is a deep-cycle house battery, not an engine-starting battery. Actual usable energy and runtime depend on load, inverter efficiency, temperature, cabling and the battery limits selected for your installation.

Key specifications

• Nominal voltage: 12.8V
• Rated capacity: 135Ah
• Nominal energy: approximately 1,728Wh
• Maximum listed charge current: 25A
• Maximum listed continuous discharge current: 50A
• Pulse discharge current: 100A for up to 5 seconds
• Charge voltage: 14.6V
• Battery configuration: up to 4 in series or 2 in parallel
• Charge temperature: 0°C to 45°C
• Discharge temperature: -10°C to 45°C
• Dimensions: 330 × 172 × 215mm
• Gross weight: 9kg
• Supplier-listed cycle life: 2,000 cycles at 100% depth of discharge or 3,000 at 80%
• Warranty: 3 years

Choosing compatible equipment

Size the inverter from the battery's 50A continuous-discharge limit, not its 100A short-duration pulse figure. Allow for inverter losses, appliance start-up current, cable voltage drop and any other simultaneous DC loads. The solar controller or charger must use a LiFePO4-compatible charging profile and remain within the battery's 25A maximum listed charge current.

For a complete system, compare compatible MPPT solar charge controllers, pure sine wave inverters and 12V lithium batteries.

Installation notes

• Fully charge and balance the battery before first use in accordance with the manual.
• Use correctly rated fuses, isolation, cable and terminations close to the battery.
• Only combine identical batteries of the same model, age and state of charge within the listed 4S/2P limit.
• Do not charge below the stated 0°C minimum charge temperature.

Frequently asked questions

Can this 135Ah battery run an inverter?

Yes, when the inverter's continuous DC demand and start-up surge remain within the battery BMS limits. Check the inverter's DC input current rather than relying only on its AC wattage.

How much energy does 135Ah provide?

At 12.8V, 135Ah equals approximately 1,728Wh nominal. Usable output is lower after system losses and any reserve maintained for battery life.

Can it replace an AGM battery?

It may suit many AGM replacement applications, but the charger, solar controller, wiring, fusing, physical space and load profile must all be compatible with LiFePO4 chemistry.

What's included

• 1 × MOBI 135Ah LiFePO4 battery
• 1 × user manual