Question for you all.
I have a solar powered spot light I really like, when it's charged up.
It has a 6vdc 4ah battery in it and I wish to re-charge it from my 12vdc system.
Source power will be my 12vdc 160 ah battery and I'm thinking of using my extra 12vdc charge controller with a 3.5 ohm / 1 watt (or better) resistor attached to reduce the power to 6vdc.
I believe that will work, but I don't know if the controller will know when the battery has reached capacity?
The other thought is to just by-pass the 6vdc battery and run the light from the 12vdc system (using the resistor to reduce the power).