300Ah Lithium Batteries
When your setup goes beyond basic power needs, a 300Ah lithium battery provides the capacity required to support multiple appliances with extended energy capacity. It is designed for users who need high-capacity energy storage with steady power delivery across larger systems.
Muller Energy’s LiFePO4 batteries are developed for applications where reliability matters for long-duration operation, including full off-grid systems, larger caravans, and energy-intensive mobile setups.
Ideal Applications of a 300Ah LiFePO4 Battery
A 300Ah battery is not just a larger option; it is designed for different types of users and systems.
Large caravans with multiple appliances
High-power 4WD builds
If your system runs continuously or supports multiple devices at once, a 300Ah battery helps reduce the need for frequent charging.
Our 300Ah Lithium Batteries Options
300Ah Lithium Battery (AS/NZS 3001.2 Compliant)
Designed for enclosed and caravan use, this battery includes a venting kit and supports AS/NZS 3001.2 compliance when installed correctly.
12V 300Ah Lithium Battery (LiFePO4)
Space-saving design ideal for tight installations without sacrificing performance.
Battery Safety Features and BMS Protection
Every Muller Energy 300Ah LiFePO4 lithium battery includes:
Why Muller Energy Stands Out
Engineered for Australian Conditions
Designed by Australian engineers to handle heat, vibration, and remote environments.
Premium Build Quality
High-grade LiFePO4 cells, stainless steel casing, and advanced battery management systems ensure long-term reliability.
Innovative Energy Solutions
We stay ahead by ensuring compatibility with modern inverters, solar, and DC-DC charging systems.
Personalised Customer Support
Get expert advice tailored to your setup, whether DIY or fully installed systems.
Fast & Reliable Delivery
Free shipping Australia-wide, secure checkout, and 30-day returns.
10-Year Warranty
Confidence in performance backed by long-term warranty coverage.
Trusted by Customers
Backed by a 4.9-star Google rating from customers across Australia.
Need Help Choosing the Right Battery?
Not sure if a 300Ah LiFePO4 battery is the right fit for your setup? Our team is here to help you find the best solution based on your power needs, system size, and application. Get clear, practical advice from experts who understand real-world energy setups.
Frequently Asked Questions
It depends on your usage. For basic setups, it may be more than needed, but for systems running multiple devices or longer durations, it is a practical choice.
Runtime varies based on load, but it is built for longer operating cycles, especially in systems running continuously throughout the day or night.
Yes, it is suitable for inverter setups, particularly where multiple appliances or higher loads are involved. It can support running devices like fridges, small appliances, and electronics, depending on the inverter size and overall system design.
A single 300Ah battery simplifies installation, while multiple batteries offer flexibility. The right choice depends on your system design.
It works efficiently with solar panels, storing excess energy generated during the day for use when sunlight is not available. This helps maintain a steady energy supply and improves overall system efficiency.
Installation is generally similar, but due to its higher capacity, proper system planning and compatible components are important. Ensuring correct wiring, ventilation, and charger compatibility helps achieve optimal performance.
Users experiencing short runtime, frequent charging, or growing power needs should consider upgrading. It is also suitable for those running multiple devices or planning to expand their power system in the future.