Recently bought a 2016 LR4, and the ECO mode is perpetually off. Presumably the little auxiliary battery is no good.
But I'd rather have a second, true auxiliary battery anyway. Maybe even a LiFe or LiPo unit, to run accessories. Which, coincidentally, is what that itty bitty battery is for.
Is it possible to use the existing circuitry (changing connectors, of course) to help a different battery with built-in BMS stay charged, and use it for a truly useful second battery?
But I'd rather have a second, true auxiliary battery anyway. Maybe even a LiFe or LiPo unit, to run accessories. Which, coincidentally, is what that itty bitty battery is for.
Is it possible to use the existing circuitry (changing connectors, of course) to help a different battery with built-in BMS stay charged, and use it for a truly useful second battery?