A proper marine regulated charger will charge at about 14v or a little less
when on continuously and will not harm the batteries.

Alec

"Gm1234" wrote in message
...

"luc" wrote 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,
I have similar interference on our radio. But, I think it is only on AM
( we
don't use radio much at dock with charger/refrig on). Radio is not
working
well, so I think I will buy a new one. I problem persists, will have to
determine if it is refrig or charger. But, I think it IS the charger - If
adding capacitor works for refrig noise, is there a similar solution for a
two bank Truecharge marine charger?

Many owners run their refrigeration using charger/batteries when at dock.
But, it probably does reduce the life of the batteries being constantly
charged and in use.

On my boat, I installed a power supply that automatically cuts in
(bypasses
batteries) whenever AC is available.

My compressor is a Waeco/Adler Barbour BD35 and the power supply is a
Mobiltronics made specially for this compressor. The power supply actually
puts out 24V and surprisingly the compressor does not mind if it gets 12v
from batteries or 24V from power supply. I found the power supply for a
low
price on eBay. Not sure I would have spent too much for one otherwise.