Well I finally got around to doing a little more testing. With a battery hooked up and using my battery tester, the charger will put out it's full 25 amp output. It appears it's working fine.
That said, the component on the circuit is destroyed, and I'm sure it has/had a purpose.
What's everyone thoughts? Don't worry about it? Or try to find the specs and replace it. It looks like it's in parallel across the AC input.
Thanks