Short Wave Sportfishing wrote:



What I am essentially saying is that if the battery is old and was
allowed to discharge such that your charger said fault, then the
chances are, and without the ability to load test the battery from a
remote location, that the battery is probably junk. I can slow
charge a battery also - doesn't mean that the battery has the ability
to hold that charge.


100% agree that Falky foo should get a new battery and forget about
trying to parallel two unlike batteries, however I'd like to add this
little tidbit of experience.

I bought a portable smart charger manufactured by Vector. It has
selectable charging rates of 2, 10, 20 and 40 amperes. If you try to
charge a small battery at the 40 amp setting, the Vector will shut down
and display a fault condition, even if the battery is perfectly fine.
The smaller batteries have to be charged at a lower setting using this
type of charger.

Eisboch