At Townsville Wholesale Batteries, we don’t just sell batteries—we help you get the most out of them. Our deep cycle and lithium battery testing services provide a clear picture of your battery’s health, capacity, and reliability.
Whether it’s a caravan, camper trailer, boat, solar setup, or industrial system, our advanced testing equipment ensures your batteries are performing as they should.
Why Test Deep Cycle & Lithium Batteries?
Unlike standard starting batteries, deep cycle and lithium batteries are designed to deliver steady power over long periods. Over time, their usable capacity decreases, often without obvious signs until performance drops in the field.
Testing helps to:
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Confirm actual battery capacity vs. rated capacity.
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Detect early signs of failure or imbalance in lithium packs.
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Verify charging system compatibility (solar, DC-DC, mains chargers).
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Prevent unexpected failures while camping, touring, or working off-grid.
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Discharge Testing
The most accurate way to measure battery performance is through a controlled discharge test.
Our process includes:
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Fully charging the battery to manufacturer specifications.
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Controlled discharge under a measured load to simulate real-world use.
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Recording capacity in amp-hours (Ah) compared to rated capacity.
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Providing a report on health, performance, and remaining life.
This method ensures you know exactly how much usable energy your deep cycle or lithium battery can still deliver.
Deep Cycle Battery Testing
We test all types of deep cycle batteries:
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AGM Batteries – common in caravans, campers, and marine use.
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Gel Batteries – vibration-resistant, often used in boats and mobility applications.
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Flooded Deep Cycle Batteries – traditional lead-acid designs for heavy-duty use.
Testing includes load capacity, voltage retention, and cycle health to determine whether the battery is still fit for service.
Lithium Battery Testing
Lithium batteries require specialised testing to ensure safety and accuracy. We provide:
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Capacity Testing – measure true amp-hour delivery.
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BMS (Battery Management System) Diagnostics – confirm balancing and protection features are working correctly.
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Cell Imbalance Detection – identify weak or failing cells before they cause major issues.
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Compatibility Checks – ensure your chargers, solar controllers, and inverters are correctly set for lithium profiles.
We work with leading lithium brands including AllSpark, Custom Lithium, Enerdrive, Victron, and more.
Who Benefits from Our Testing Services?
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Caravan & Camper Owners – know your battery bank is ready for the next trip.
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Boaties & Anglers – ensure your deep cycle or trolling motor batteries won’t let you down.
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Solar System Users – check your storage is delivering full capacity.
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Industrial Operators – avoid downtime by monitoring critical battery systems.
Why Choose Townsville Wholesale Batteries?
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Advanced testing equipment for both lead-acid and lithium batteries.
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Discharge testing for accurate capacity measurement.
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Mobile and in-store testing options.
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Professional advice on replacement, upgrades, or system compatibility.
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Stock of AGM, Gel, Lithium, and accessories ready for immediate replacement if required.
đź“ž Call us today on 0459 364 303
📧 sales@twbgroup.com.au
⚡ Townsville’s experts in deep cycle and lithium battery testing – accurate discharge testing to keep you powered off-grid.