I've got excessive static on my FM radio, and discovered it's my
battery charger. Obviously, I want to keep the charger going, but
wonder if anyone knows how to suppress that noise.

Also, my refrigerator works on my batteries, and my charger charges
them. Is this going to decrease the battery life, to be continually
running the refrigeration on batteries, then charging the batteries to
keep up?

thanks for any information,

Luc