On Nov 16, 4:21*pm, JIMMIE wrote:
I want to add a couple of deep discharge type batteries to my truck
for camping but how do I intermix them with the normal auto battery
and charging system. I was thinking about getting a charger meant for
charging batteries from solar panels and connecting the solar panel
input to the generator. A 20A charger cost about $50USD .This would be
very reasonable if I knew it would work as expected.

Jimmie

Hey jimmie:

TI makes a really sweet ic for charging batteries the UC3906. Is the
greatest IC since sliced bread for charging batteries. It took forever
to charge my deep cycle marine battery like a110AHr. A straight
charger it would take a week to charge 100% it's that last 15% that's
the toughest. The UC3906 charged my deep cycle marine battery to full
charge from dead in 10 hours. It's one of the greatest homebrew jobs
I've done. I used it to charge a 110AHr deep cycle marine battery for
my electric bike. I could ride 2 days on a single charge like $0.25
worth of electricty back and forth to work. 45 miles on a single
charge.

73 OM
n8zu