SUPER EMPOWER 12300-180L 12V 300Ah LiFePO4 Battery, 3840Wh, 200A BMS

At 15.35 × 7.59 × 9.84 inches, the SUPER EMPOWER 12300-180L is a 12.8V, 300Ah LiFePO4 deep-cycle battery built for RV, marine, and solar power systems. Its 3,840Wh capacity provides stored energy for applications such as camper vans, trolling motors, off-grid setups, and home backup.

The integrated 200A BMS monitors voltage, current, and temperature, with protection functions designed to help manage everyday battery operation.

Everyday use

Use this battery as part of a 12V power setup for an RV, boat, solar storage system, or other listed application. For example, it can store energy for an off-grid solar system to draw on when needed. Its 300Ah capacity and 3,840Wh energy rating make it a high-capacity option for buyers planning a deep-cycle installation rather than choosing a smaller battery for lighter power needs.

The battery weighs 58.4 pounds and has M8 terminals. Before installation, compare its dimensions with the available battery compartment and check that it suits your system. It is also listed for scooter and trailer use.

Pros

A key advantage is the combination of 300Ah capacity and a built-in 200A BMS. The BMS monitors voltage, current, and temperature, and provides protection against overcharge, over-discharge, overcurrent, short circuit, and temperature conditions. For RV and marine setups, that integrated management helps keep battery operation within monitored conditions without relying on capacity alone as the deciding factor.

Buyers commonly describe the battery as providing lasting power and holding its charge when not in use. They also call out its size and weight favorably. Feedback on the voltage indicator is mixed, so treat that as a point of individual preference rather than a defining feature. Compared with a traditional lead-acid approach, this LiFePO4 battery is presented as a way to replace multiple lead-acid batteries with less weight and maintenance.

What to know

The low-temperature function pauses charging below 32°F and stops discharge at –4°F. Discharge resumes above 41°F. These temperature controls are useful details when planning an RV, marine, or off-grid installation that may operate in cold conditions.

The listed dimensions are 15.35 inches deep, 7.59 inches wide, and 9.84 inches high. Check the battery space and system compatibility as part of installation planning. A five-year warranty is listed for the battery.

Before you decide

How much energy does the battery store? It is rated at 3,840Wh, with a capacity of 300Ah at 12.8V.

What does the BMS protect against? The integrated 200A BMS monitors voltage, current, and temperature, with protection against overcharge, over-discharge, overcurrent, short circuit, and temperature conditions.

What are the cold-weather thresholds? Charging pauses below 32°F, discharge stops at –4°F, and discharge resumes above 41°F.

Is it worth it?

For buyers planning a higher-capacity deep-cycle setup for an RV, boat, trolling motor, or off-grid solar storage, the SUPER EMPOWER combines 300Ah capacity with an integrated 200A BMS and low-temperature functions. Its defined dimensions and M8 terminals also give practical details to use when planning the installation. It suits you if you want a LiFePO4 battery for one of these applications and need substantial stored energy in a single battery.