I am a weekend sailor only, and don't have massive power requirements. (I have shore power
, but don't use it and won't use it until I get an isolation transformer.)
I have a 40watt (I think) solar
panel, with a 5amp Projecta controller which only charges up the wet lead acid engine
I would like to be able to hook the solar
up to charge this battery
and my second battery, a deep cycle 120Ah house battery. I have read somewhere however, that you shouldn't try to charge two different types of battery at the same time, as the lower charged battery will pull down the higher charge - thus shortening their life.
My question is, can I have a solar charger regulator
that automatically charges both batteries (one after the other) and then maintains a float charge? If so, will this setup still work with the battery switch (1, 2, both, off) in the off position (which is what i use when during the week) or does the switch have to be set to both?
PS Sorry if this has already been asked and answered, I did a search but couldn't find an answe.
PS I'm very raw with all this electrickery, so don't spurt your coffee over your keyboard whilst laughing hysterically, if what I just suggested defies the laws of physics....