Warning: NonRV Solar Question

Thanks all.

I agree that a baggy to seal the controller inside, and spray it with ant spray before sealing it up. The spray will not harm the controller, but will kill any ants that eat through the baggy material. Or spray the outside of the baggy, once the controller is safely inside. The small gap for the wires to go in and out can be covered with duct tape, and the ants can not get past it.

AliExpress.com Do a search for 10 amp PWM solar controller. You should find many, and the $13 one that I bought works fine with a pair of 45 watt solar panels.

Fred.

Ants avoid areas where Dawn dish soap was applied. Even long after a rain appears to have washed it all away.

Bag the controller with a desiccant inside would be my suggestion.

MAYBE NOT
a couple of small 5amp diodes inline for blocking and voltage drop
will work,
BUT you will need to keep an eye on the battery and do a periodic voltage check
as it may not get a full charge

Only if you care about the battery:

https://www.youtube.com/watch?v=z5RtZe9AW2E&list=UUoPqTkOluQsuu3RpGnxVwFw&index=8