Lithium battery LiFePO4 12.8V 315Ah

LiFePO4 Battery 12.8V 315Ah INNPO – Maximum energy for RV, marine and solar systems

12.8V 315Ah LiFePO4 lithium battery engineered for high-demand energy storage applications such as RVs, boats and off-grid solar systems. It delivers higher usable capacity, faster charging and a much longer lifespan compared to traditional AGM or GEL batteries.

Why LiFePO4 technology has transformed this sector

In applications such as campervans, marine systems and off-grid installations, LiFePO4 batteries provide much more than just longer life. They deliver more usable energy, stable voltage under load, faster charging and minimal maintenance.

• Appliances like fridges run reliably overnight
• Inverters handle high loads (coffee machines, microwaves)
• Solar panels recharge the battery much faster
• Reduced need for frequent battery replacements

LiFePO4 is also considered one of the safest lithium chemistries available in the mainstream market.

Key benefits in real-world use

More usable energy

Unlike lead-acid batteries, LiFePO4 allows a much deeper discharge without significantly affecting lifespan, meaning more real usable capacity.

Stable voltage output

Provides a flat discharge curve, ensuring better performance for sensitive and high-demand equipment such as inverters, compressors and electronics.

Fast charging capability

Accepts higher charge currents, significantly reducing recharge time from solar panels, alternators or AC chargers.

Long lifespan

Can exceed 3000 charge cycles, offering several times the lifespan of AGM or GEL batteries.

Lightweight design

Up to 70% lighter than traditional lead-acid batteries, improving installation flexibility and weight distribution.

Low maintenance

No maintenance required and no issues related to sulfation or partial charge cycles.

Installation & compatibility

This battery can replace most 12V AGM or GEL batteries in existing systems. However, it is recommended to check the charging system for optimal performance.

• Series connection: up to 4 batteries (48V systems)
• Parallel connection: up to 20 batteries
• Always use identical models with the same age

Technical specifications

What users expect from a LiFePO4 battery today

• Reliable integrated BMS with full protection
• High continuous discharge capability
• Compatibility with solar systems and inverters
• Safe operation under real conditions
• Drop-in replacement format for AGM/GEL

Frequently asked questions

Can I replace my AGM battery with LiFePO4?

In most cases yes, but it is recommended to check your charger, solar regulator and charging system to ensure compatibility.

Are LiFePO4 batteries safe?

Yes, LiFePO4 is one of the safest lithium technologies, especially when combined with a high-quality BMS and proper installation.

How does it perform in cold weather?

Discharging works at low temperatures, but charging must be done within recommended temperature ranges to protect battery life.

Can I charge it from the alternator?

Yes, but in many cases a DC-DC charger is recommended to protect the alternator and optimize charging.

How to identify a high-quality LiFePO4 battery

• Clearly defined continuous and peak discharge current
• Maximum charging current specified
• Advanced BMS protection features
• Cycle life with defined conditions (DoD)
• Technical documentation and manuals available
• Reliable warranty and support

A good LiFePO4 battery is not defined only by capacity (Ah), but by its ability to deliver stable, safe and long-lasting performance.

Recommended applications

• RVs and campervans
• Marine and boating systems
• Off-grid solar installations
• Electric vehicles
• Industrial equipment
• Backup power systems

Related categories for planning your installation

Compare voltage, capacity and technology in our range of LiFePO4 batteries.

To plan charging, explore lithium battery chargers and choose the right profile and voltage for your battery.

Complete your wiring with battery connectors and terminals sized for your installation.

For onboard power solutions, explore our batteries for campervans, caravans and motorhomes.

For marine projects, browse boat and marine batteries for onboard service power.