Deep-Cycle Battery Testing, Diagnostics & Upgrades – Townsville
Accurate testing for AGM and Lithium (LiFePOâ‚„) house batteries in caravans, campers, 4WD canopies, boats and off-grid systems. We verify true capacity, charging profiles and BMS health so you get reliable runtime without guesswork.
Deep-Cycle Done Right
From lithium BMS faults to tired AGM banks, we diagnose the whole system — batteries, solar, DC-DC, mains chargers and loads. Get clear keep/replace advice and upgrades that actually improve runtime.
- Applications: caravans, campers, 4WD canopies, boats, off-grid sheds
- Chemistries: AGM, Gel, LiFePOâ‚„
- Charging: solar MPPT, DC-DC, mains chargers, alternator charge
Deep-Cycle Ranges We Test & Supply
Our Deep-Cycle Testing Services
Comprehensive diagnostics for capacity, charge rates, BMS status and wiring quality — in-store or mobile.
Capacity & Health Test
Open-circuit voltage, internal resistance and controlled load testing to estimate usable capacity.
Charge Rate Verification
Confirm DC-DC, mains charger and alternator output vs battery spec (AGM/LiFePOâ‚„).
Solar MPPT Performance
Panel output, wiring losses and controller configuration checked and tuned.
BMS & Protection (Lithium)
Low-temp cut-off, cell balance, high/low voltage protection and recovery behaviour.
Load & Inverter Testing
Measure current draw for fridges, pumps and inverters; confirm runtime expectations.
Wiring Audit & Upgrades
Cabinets, fusing, cable gauge and terminations tidied and upgraded for safety.
Why Choose Townsville Wholesale Batteries?
Deep-Cycle Specialists
Daily installs and diagnostics across caravans, canopies, boats and off-grid.
Clear Keep/Replace Advice
No guesswork — measured capacity and charge data drive decisions.
Quality Brands
ATG Lithium and Ritar AGM available in-stock with matching chargers.
Runtime Optimised
Charge profiles, wiring and monitoring tuned for real-world stays.
Warranty & Support
Manufacturer warranty plus our workmanship guarantee.
What We Check & Verify
BMS & Cell Balance (LiFePOâ‚„)
Check BMS status, low-temp cut-off and cell balance behaviour under charge.
MPPT & Solar Wiring
Voltage drop, panel strings and controller settings verified.
DC-DC & Alternator Charge
Charge current matched to battery chemistry and alternator limits.
Mains Chargers & Profiles
AGM/Gel/LiFePOâ‚„ profiles checked; stage voltages adjusted as required.
Parasitic Loads & Standby
Find stealth drains and reduce standby draw for longer stays.
Shunt Monitors & SOC
Configure shunt-based monitors for accurate State-of-Charge readings.
Talk to Our Deep-Cycle Team
Capacity tests • BMS diagnostics • Correct wiring & charge rates • Warranty-backed brands