12.8V 310Ah LiFePO4 Deep Cycle Battery Essential with 4S Battery Protector

12.8V 310Ah LiFePO4 Deep Cycle is a heavy-duty deep cycle battery built for solar storage, RV, marine and off-grid use across New Zealand, offering 3.9kWh of storage. Designed for thousands of charge cycles, it delivers dependable power day after day.

This package pairs the 12.8V 310Ah Essential LiFePO4 deep-cycle battery with a matched 4S Battery Protector. It is designed for customers who want dependable stored energy together with an additional layer of cell balancing and battery protection.

LiFePO4 packs contain multiple cells connected in series. Over time, small differences between cell voltages can become more noticeable, particularly in batteries that are charged and discharged frequently. The matched 4S protector monitors the correct series configuration and actively discharges higher-voltage cells when balancing conditions are reached.

This helps keep the cells closer together in voltage, supports more consistent charging and discharging, and helps the battery use its available capacity more evenly. The protector also provides overcharge, over-discharge, over-current and short-circuit protection. It does not increase the battery’s rated capacity and does not replace correct charging equipment or professional installation.

The included 12.8V 310Ah battery provides 3.9kWh of nominal energy and approximately 3.5kWh of usable energy. It is suited to large-capacity solar storage, home backup, camping and demanding mobile power applications.

Important: The protector requires correct cell-level wiring and must match the battery’s 4S configuration. Incorrect wiring, a skipped connection or reverse polarity can permanently damage the protector or battery and may create a fire hazard. Installation should be completed by a person familiar with series-connected LiFePO4 batteries.

Confirm compatibility: Verify that the battery is LiFePO4 and uses a 4S series configuration. Do not install the 4S protector on a battery with a different cell count or chemistry.

Key Features

• ✓ Integrated active equalisation system
• ✓ At least 6,000 cycles under the stated datasheet test conditions
• ✓ Use a compatible LiFePO4 charger.
• ✓ Do not reverse polarity or exceed the stated current ratings.
• ✓ Install and operate the equipment in a dry, well-ventilated location.
• ✓ Stop using the battery immediately if it shows abnormal heat, swelling or other signs of a fault.
• ✓ Professional installation is recommended where access to individual cell connections is required.

12.8V 310Ah LiFePO4 Deep Cycle: Full Specifications

Order the 12.8V 310Ah LiFePO4 Deep Cycle Battery Essential with 4S Battery Protector online today for fast NZ-wide delivery, or get in touch for volume pricing and expert advice on solar batteries and complete solar systems. NZ Depot ships solar equipment to Auckland, Wellington, Christchurch and everywhere in between.

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