VoltX 12.8V 200Ah slimline LiFePO4 battery with approximately 2,560Wh of nominal energy for space-conscious caravan, camper, 4WD and off-grid installations. The 110mm-wide case provides high capacity where a conventional battery footprint may not fit.

This sealed deep-cycle house battery includes an integrated BMS and prismatic cells. It is not an engine-starting battery, and compatibility must be checked against the complete charging, cabling and inverter system.

Key specifications

• Nominal voltage: 12.8V
• Rated capacity: 200Ah
• Rated energy: 2,560Wh
• Charging voltage: 14.2V to 14.6V
• Absorption voltage: 14.4V
• Float voltage: 13.8V
• Rated continuous discharge current: 100A
• Listed short-duration discharge: 300A for up to 5 seconds
• Charge temperature: 0°C to 45°C
• Discharge temperature: -25°C to 65°C
• Storage temperature: -10°C to 50°C
• Dimensions: 552 × 110 × 290mm
• Weight: 19kg
• Supplier-listed cycle life: approximately 4,000 cycles under its test conditions
• Warranty: 3 years

Designed for narrow spaces

The 110mm case width can suit side compartments and behind-seat installations. Check the full 552mm length, 290mm height, terminal clearance, cable bend radius and mounting access before ordering. The battery must be secured for vehicle movement and protected with correctly rated fusing and isolation.

Compare this model with other slimline lithium batteries and the complete 12V lithium battery range.

Inverter and charging compatibility

Use the 100A rated continuous-discharge current for normal system sizing. The supplied data also lists 300A for five seconds and a separate 450A maximum figure without a duration; neither should be used as a continuous operating rating. Allow for inverter losses, start-up surge, cable voltage drop and simultaneous DC loads.

Use a LiFePO4-compatible charger or MPPT solar controller set within the listed voltage and temperature ranges. Browse pure sine wave inverters only after confirming their DC current requirement is compatible with the battery and cabling.

Series and parallel use

The supplied listing states support for up to six batteries in series or parallel but also advises against multi-battery wiring without appropriate expertise. Confirm the current VoltX manual and warranty requirements before combining batteries. Use only identical batteries with matching age, capacity, state of charge and cable paths, installed by a suitably competent person.

Frequently asked questions

How much usable power does 200Ah provide?

The nominal energy is 2,560Wh. Actual AC energy is lower after inverter and wiring losses and any reserve maintained for battery longevity.

Can this replace an AGM battery?

It may suit many upgrades, but it is not automatically a drop-in replacement. Confirm charger and controller profiles, BMS current, cable and fuse ratings, dimensions and system voltage.

Can it run a large inverter?

Only if the inverter's continuous input current and start-up surge remain inside the battery's verified BMS ratings. Do not size an inverter from the undated 450A maximum figure.

What's included

• 1 × VoltX 200Ah slimline LiFePO4 battery