INNPO 12.8V 300Ah LiFePO4 Battery

INNPO 12.8V 300Ah LiFePO4 Battery

The INNPO 12.8V 300Ah LiFePO4 Battery provides 3.84kWh of nominal energy in a compact rechargeable lithium iron phosphate format. This large 12V battery is intended for high-autonomy service and storage systems where 3.84kWh nominal can be installed safely in one enclosure.

Verified product information

Large 12V banks for off-grid and leisure autonomy

The 300Ah model can reduce the number of separate batteries in a high-capacity 12V system. Its weight, short-circuit capability and potential inverter current require robust mounting, appropriate disconnects and professional cable and fuse selection.

Compatibility before replacing a lead-acid battery

A similar case size or nominal voltage does not by itself guarantee a direct replacement. Confirm the terminal layout, available space, charger profile, alternator or DC-DC charger, solar controller and the continuous and peak current required by the connected equipment. Use a charging profile approved for the exact LiFePO4 model; do not assume that every AGM or GEL charger is suitable.

Installation checklist

• Install a correctly rated fuse close to the positive terminal.
• Size cables and terminals for the maximum expected current and cable length.
• Secure the battery against movement and protect it from water, impact and heat.
• Check whether series or parallel connection is permitted for this exact model before combining batteries.
• Follow the current technical sheet for charge voltage, current limits and operating temperature.

How much usable energy do you need?

Estimate daily consumption by multiplying each appliance power in watts by its operating time in hours. Add the results, allow for inverter and system losses, and retain an operating reserve. At 3.84kWh nominal, the battery can cover significant daily demand, but a 12V inverter may still draw hundreds of amps at high power. Consider whether a 24V or 48V architecture would reduce current for larger systems.

Explore more LiFePO4 batteries and prismatic cells or ask INNPO to check voltage, capacity and charger compatibility for your installation.