Renogy PWM charge controller as trickle charger?

[Srpat]

Working on all the electric in the trailer. I have a toad charger for the 12v charging via the trucks 7 pin harness, and a noco charger for connecting to 120v. I just finished putting a 100w panel on the roof with a renogy 30amp PWM charge controller. The whole solar setup was something like $150 off of amazon, but it had good reviews from several members on this site.

The question is if I can leave the solar connected and charging the battery full time when the trailer isn't in use. I can't find much info from renogy on this. Does this cheap charge controller also work as a battery trickle charger/maintainer?


Thanks

Srpat

 

[JHa6av8r]

The short answer is yes. I have a 95W solar panel on the roof of my camper with a 30A Renogy controller. It's connected to two deep cycle AGM batteries all the time. The batteries are 3 1/2 years old now and no issues.

 

[jays0n]

Should be fine but if you have standard "wet" marine batteries keep an eye on the water level, I've seen them get basically boiled off from being on a charger that wasn't intelligent too long.