lithium boat batteries
Introduction
Lithium batteries claim discharge capacities of nearly 100% even at 100A discharge, and cycle lives of 2000+ at similar discharge currents and 80% DoD.
To ensure fairness across the range we charged each battery on test with an approved lithium charger. We then carried out three measured discharges (with recharging in between each) and measured the Ah they delivered:
1. At 25A – using an MK constant current discharge tester
2. At 100A – by connecting each to an inverter, with a 1kW electric heater plugged in
3. At 150A – as above but with a 1.5kW heater
4. Finally we measured the maximum current they would deliver for 5 minutes, on the grounds that this is what you would use to boil a kettle or power a microwave.
Some batteries being tested only had a 90Ah or 60Ah rated capacity, so we only took 90A and 60A from these to test actual performance compared to claimed performance.
Some batteries could deliver the 150A, some could not. In all cases it was the internal battery management system (BMS) that determined when they shut down, with different manufacturers choosing different cut-off points that they thought would enable their unit to deliver the best long-term results and cycle life.
The temperature of our test facility varied between 10-15°C. Most makers’ stated capacities were achieved at 25°C, so our results were bound to be slightly lower than the claimed figures, by approximately 2-4Ah.
Advantage
Drop-in Replacement
Lightweight
Constant Power
No Maintenance
Application
Lithium Batteries for Your Bass Boat
Whether you're the tournament angler or the weekend warrior, lithium batteries offer solutions to every bass fisherman. Torphan lithium batteries will keep you in the game longer.
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