battery charging
Submitted: Wednesday, Aug 08, 2018 at 19:32
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Wayne G9
if i plug a solar panel into the anderson plug at the rear of my tow vehicle (where the caravan plugs in )will it charge both my car battery and my secondary deep cycle battery...without doing any damage ???
also if i leave the car and caravan hooked up,will the solar panels on the van charge the batteries in the car
Reply By: RMD - Thursday, Aug 09, 2018 at 10:01
Thursday, Aug 09, 2018 at 10:01
Wayne
I have recently modified all my charging systems and use a DC/DC unit running off solar and engine battery when running.
What it seems you are asking will not work and any battery connected directly to that panel without a regulator will become over charged/destroyed.
However, it is possible to have the solar input provide power to the DC DC unit and IT'S output can be used to switch on a VSR, voltage sensitive relay to become acitve and connect the output to the any battery ONLY when the engine is off. ie, the Engine battery system has to auto disconnect the charge action, whenever the engine is running. It can be done but requires a few different components, some voltage sensitive switching and interlocking/ inhibiting so the output of the DC DC isn't EVER fed to it's input while solar is used with engine.
Not as simple as it seems.
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