ATG Batteries 300AH 12V Lithium LiFePO4 Battery Slimline

Need serious off-grid power? The ATG 300Ah slimline lithium battery delivers huge capacity, Bluetooth monitoring and reliable performance.

Massive Off-Grid Power in a Slimline Design

The ATG 300Ah Slimline Lithium Battery is designed for serious off-grid travellers who need high-capacity power without sacrificing valuable storage space.

Ideal for:

✔ Caravans

✔ 4WD touring

✔ Motorhomes

✔ Off-grid cabins

✔ Marine applications

✔ Large solar systems

✔ High-demand 12V installations

Ideal For

✔ Full-time caravan travellers

✔ Grey nomads

✔ Off-grid campers

✔ Large 4WD electrical systems

✔ Motorhomes

✔ Solar-powered cabins

✔ Marine auxiliary power

✔ Customers replacing multiple AGM batteries

Whether you're running fridges, lighting, inverters or multiple appliances, this battery delivers the capacity needed for extended adventures.

The ATG 300Ah 12V Slimline LiFePO4 Lithium Battery is a premium high-capacity energy storage solution designed for serious off-grid users, caravanners, 4WD enthusiasts, marine applications and commercial mobile power systems.

Featuring advanced Lithium Iron Phosphate (LiFePO4) technology, integrated Bluetooth monitoring and a sophisticated Battery Management System (BMS), this battery delivers exceptional performance, long service life and dependable power in a space-saving slimline design.

With a substantial 300Ah capacity, this battery is ideal for powering fridges, Starlink systems, inverters, lighting, induction cooking appliances and other high-demand loads while maintaining excellent efficiency and reliability.

• 300Ah Lithium LiFePO4 Battery.
• 4-year Australian warranty
• A grade cells 304AH Eve Cells
• Australian designed 
• Jaibaida BMS
• Copper busbars
• Bluetooth
• 300A Max continuous discharge
• Rubber to assist against vibration and external heat 
• 580x470x88mm
• 35Kg 

Power More for Longer

A 300Ah lithium battery is commonly used to run:

✔ Compressor fridges

✔ Lighting

✔ Water pumps

✔ Coffee machines (through a suitable inverter)

✔ TVs

✔ Starlink systems

✔ CPAP machines

✔ Laptop charging

✔ Induction cooktops (with an appropriately sized inverter)

✔ Microwave ovens (with a suitable inverter)

✔ Multiple appliances simultaneously

Stay Off-Grid Longer

Higher-capacity batteries mean:

✔ Longer time between charges

✔ Better support for larger electrical loads

✔ More overnight capacity

✔ Greater flexibility when camping away from powered sites

✔ Less concern about daily power usage

More Power Without Losing Storage Space

Space inside caravans and 4WDs is always limited.

The slimline design makes it easier to install the battery:

✔ Behind seats

✔ Inside canopies

✔ In caravan battery lockers

✔ Against walls

✔ In narrow storage compartments

Large capacity doesn't have to mean a bulky installation.

Built for Australian Touring

Features include:

✔ Premium EVE prismatic cells

✔ Australian-designed

✔ Bluetooth battery monitoring

✔ Jaibaida Battery Management System (BMS)

✔ High continuous discharge capability

✔ 4-year Australian warranty

Will this run my caravan?

Yes. A 300Ah lithium battery is commonly used in caravans to power fridges, lighting, water pumps, entertainment systems and other 12V appliances. Runtime depends on your overall power usage.

Can I use it with solar?

Yes. This battery is suitable for use in compatible solar charging systems, along with appropriate DC-DC and mains lithium chargers.

Why choose a slimline battery?

Slimline batteries are designed to fit into narrow spaces where traditional battery cases may not fit, making them ideal for modern caravans and 4WDs.

Can I monitor the battery on my phone?

Yes. This model includes Bluetooth connectivity for use with a compatible smartphone app, allowing you to monitor battery status and performance.