Solar Battery Charge Issue
Hello I have a 100W Renogy solar suitcase charging two AutoZone Duralast lead acid Marine deep cycle group 24 batteries. Batteries are 3 years old. Lately I have noticed the charging cycle time drasti...
Forum Discussion
Almot wrote:Unless the setting was somehow reset to 4 hours from 2 hours. What is the default?
Looks like Absorb voltage is fixed (and so is Float), but Absorb timer is adjustable from 2 to 4 hours, and Absorb stage will end regardless of the timer if current drops to 0.75/1A. And then it says "if current <0.2A the stage will end". Confusing but this doesn't give a reason to blame the controller.
I think before replacing the controller with another one, you should check SG and try to equalize batteries after fully charging it. Preferably at home when you're not using them, or - better yet - if you have 12V supply. I would agree with BLF that they are in a bad shape.
