Custom Lithium 24V 400Ah Ultra Slim Lithium Battery
This is an estimate only. Actual delivery times can vary with stock availability, courier delays, weather, public holidays and your location.
Custom Lithium 24V 400Ah Battery, Plenty of Power Without Taking Up the Whole Space!
Ever tried packing your touring setup only to realise the battery takes up half the bloody storage space? It’s a common headache for caravaners and 4WD travellers who need serious power but don’t want to sacrifice room for gear.
The Custom Lithium 24V 400Ah Battery solves that problem with a massive amount of usable power packed into a slim design that fits where bulky batteries simply can’t. Whether you’re running a fridge, lights, inverter or the odd gadget out in the bush, this battery keeps things running without turning your setup into a game of Tetris.
If you’re ready for big power without the bulk, check it out today.
Add one to your cart and stop watching the voltmeter.
Why The 24V 400Ah Ultra Slim Lithium Battery May Be Right For You:
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Enjoy reliable power wherever you pull up thanks to the massive 400Ah lithium capacity, so you can run fridges, lights and gear for longer without stressing about flattening the battery.
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Save valuable space in your setup with the ultra-slim battery design, making it easier to fit serious power into tight canopy, caravan or boat installs without turning packing into a headache.
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Spend more time enjoying the trip and less time worrying about your power system with the advanced lithium battery technology, giving you dependable performance when you’re miles from the nearest power point.
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Keep your gear running smoothly and efficiently thanks to the stable 24V output, helping your appliances and inverters operate properly so your off-grid setup works exactly how it should.
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Get a battery built for real Aussie adventures with the rugged Custom Lithium build quality, giving you the confidence to head off-grid knowing your power system can handle the journey.
24V 400Ah Ultra Slim Custom Lithium Package Contents:
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1 × 24V 400Ah Ultra Slim Custom Lithium Battery
Custom Lithium 24V 400Ah Battery Installation Guide:
Custom Lithium 24V 400Ah Ultra Slim Lithium Battery Tech Specs
| Battery Capacity | 400Ah |
| Nominal Voltage | 24V (25.6V nominal) |
| Battery Chemistry | LiFePO₄ (Lithium Iron Phosphate) |
| Energy Capacity | Approx. 10.2kWh |
| Battery Management System | Integrated Smart BMS |
| Cycle Life | Up to 6000 cycles |
| Cell Type | A-grade lithium cells |
| Design | Ultra-slim battery case |
| Application | Suitable for caravans, 4WDs, boats and off-grid systems |
| Manufactured In | Australia |
| Warranty | 7 years |
Custom Lithium 24V 400Ah Ultra Slim Lithium Battery FAQs
1. What can the 24V 400Ah Custom Lithium Battery be used for?
This high-capacity LiFePO4 battery is designed for demanding off-grid power systems in caravans, 4WDs, canopies and boats. It can support equipment such as fridges, induction cookers, Starlink, power tools and compatible 240V inverter systems.
2. Does the 24V 400Ah battery require professional installation?
Professional installation by a qualified auto electrician is recommended. The battery should be securely mounted with its weight properly supported to help prevent movement and ensure safe, reliable operation.
3. What safety features are built into the battery?
The battery uses premium A-grade automotive LiFePO4 cells and features a Battery Management System (BMS) with active balancing. The BMS helps protect against conditions such as overheating, over-discharge and short circuits while helping maintain balanced cell performance.
4. What warranty does the Custom Lithium 24V 400Ah Battery include?
The battery is backed by a 7-year warranty and lifetime customer support, providing added peace of mind for long-term off-grid and mobile power applications.