Denton wrote:
Hi all....
I was given a 36 volt, 24 amp battery charger. I haven't dug into the
insides to see what it uses for a rectifier system, but am wonding if there
are any solid state amps that would run on that kind of voltage..
Thanks in advance...

if it is just a battery charger, probably just has
some diodes in line with the output. and you would have
lots of ripple if you powered an amplifier with this.

But, you have a great start to a 13.8 V/24 Amp. supply.
add a capacitor bank, then go through a regulator circuit.