I have permanent 6amp staged on house, motor batteries switchable . First was conected to regulator wires for house batteries . All fine . Fitted after low battery on motor batteries after a week or two stay . In RV. Not good when free camping !! If you have a timer ? Cheap enough . I would have charging say ?? 2 hours a day ., while stored . Even if charger has trickle charge ..
-- Edited by Aus-Kiwi on Monday 6th of June 2016 02:06:54 PM
How and what is the best way to connect the controller to the batteries?
1/ Just connect =- to one battery and let the charge flow to the other battery?
2 / Connect to the + on battery 1 and - on battery 2?
Its been proven that current will favour one Battery more than the other.
People whom are very fussy with DC installation, will actually connect the Charging cable at "mid point"
This also includes when you install 2 x xxxAh Batteries in the rear of a Vehicle, as current draw will also favour one Battery over the other on usage also.
So if you want to be fussy, measure the interconnecting cables and inject the Solar Controller output at the mid point
How you Physically achieve this, is up to you.
But that is the concept :)
Resistance, even a tiny amount does come into play.
So all things being equal, your "Option 2" should work fine
-- Edited by Salty_Dog on Saturday 11th of June 2016 02:53:12 PM
-- Edited by Salty_Dog on Saturday 11th of June 2016 02:58:27 PM
