Founded in Brisbane, Queensland, Custom Lithium is a proudly Australian family-owned business specialising in ultra-compact, high-capacity lithium batteries for caravans, 4WDs, and commercial and industrial applications. Our batteries are built to endure the harshest Australian conditions – delivering the reliability, efficiency and performance that Australian adventurers and industries demand.
Unmatched Safety & Performance
Power That Fits Anywhere
Built to Last a Lifetime
Built to the Highest Standard
Proudly Certified as Australia Made
Built in Australia, for Australia. We know the toughest tracks demand the highest quality gear. Purchasing this battery not only supports the Australian manufacturing industry, but ensures your battery is of the highest quality.
Certified Australian Made, our batteries are built in Brisbane and meet the highest standard of craftsmanship. Your purchase not only ensures you’re receiving a premium product but also supports the local economy and helps to keep manufacturing in Australia.
Backed to go the Distance
FAQs
Can I swap my AGM Deep Cycle Battery for a Custom Lithium Battery?
The possibility of swapping your AGM battery for a Custom Lithium Battery primarily depends on your current charging setup. AGM and lithium batteries have distinct charging cycles and chemical properties. Lithium batteries, while lighter and more efficient with a longer lifespan, require more precise charging profiles to prevent damaging the battery and to prevent overcharging and avoid potential safety hazards.Before proceeding with a swap, it’s crucial to verify that your existing chargers and related equipment are compatible with lithium batteries. Ensure to consult the manuals for your DC-DC charger, solar charge controller, and 240V charger, among others. These should support the specific needs of lithium batteries to facilitate a safe and effective transition from AGM to lithium technology.
What size DCDC charger do I need for my lithium battery?
All the DC-DC chargers we offer are fully compatible with Custom Lithium Batteries. Whether you choose a charger with a built-in MPPT solar regulator or a straightforward DC-DC charger, you’ll find an option that suits your needs.The choice between smaller and larger DCDC charger models largely depends on your desired charging speed. For our larger batteries, we recommend opting for a larger DC-DC charger to ensure more efficient recharging. However, even our smaller batteries can handle a robust 40A charger for quicker charging. Alternatively, using a smaller DCDC charger, such as 25A or 30A, is also viable but expect slower charging times.If you are considering a charger from a third party or planning to use an existing one, make sure the lithium DCDC charger is configured to support a 13.4-13.6 volts absorption/float charge and a bulk charge of 14.2-14.6 volts to ensure optimal charging performance and battery health.
What charging profile should I use to charge my lithium battery?
All the DC-DC chargers we offer are fully compatible with Custom Lithium Batteries. Whether you choose a charger with a built-in MPPT solar regulator or a straightforward DC-DC charger, you’ll find an option that suits your needs.The choice between smaller and larger DCDC charger models largely depends on your desired charging speed. For our larger batteries, we recommend opting for a larger DC-DC charger to ensure more efficient recharging. However, even our smaller batteries can handle a robust 40A charger for quicker charging. Alternatively, using a smaller DCDC charger, such as 25A or 30A, is also viable but expect slower charging times.If you are considering a charger from a third party or planning to use an existing one, make sure the lithium DCDC charger is configured to support a 13.4-13.6 volts absorption/float charge and a bulk charge of 14.2-14.6 volts to ensure optimal charging performance and battery health.
Are Custom Lithium Batteries IEC-62619 certified?
All Custom Lithium batteries are made with high-quality IEC-62619 certified components and meet the AS/NZS 3001 recommendations.
How do I restart a flat Lithium Battery?
There are two main methods to restart an Ultra Slim Lithium Battery that has run flat:
Method 1: The simplest method involves using a lithium-compatible 240V charger with a ‘power supply’ mode. Connect the Ultra Slim Lithium Battery to the charger, set it to ‘power supply’ mode, and allow it to charge until full. This method helps wake up the battery and continue charging.
Method 2: If you do not have access to a 240V charger, you can restart your battery using another 12V battery with similar voltage and capacity:
- Equip yourself with jumper leads with positive and negative clamps.
- Position the two batteries next to each other, ensuring they do not touch.
- Connect the positive clamp of the jumper leads to the positive terminal of both batteries.
- Connect the negative clamp to the negative terminal of both batteries.
- Activate the vehicle or power source equipped with a DC-DC charger to start the charge.
- Once charging is confirmed, carefully disconnect the jumper leads, starting with the negative.
If your Ultra Slim Lithium Battery remains unresponsive after an extended discharge period, it may require servicing. Please return it to Custom Lithium for a professional assessment. It is highly recommended to fully charge the battery after a successful reset to ensure optimal performance.