BF. . .you should be able to run that thing 8 hours with a 24 vold system. I
have same and drag my 2K lbs. Champion around for nearly a day and a half
with a full charge. I'm not very mechanically minded but there's a few
things to check out. Some may sound pretty basic. 1- make sure connects on
battery post are clean. Maybe not getting a full charge. check charge with a
meter to make sure you are getting them way up. Also make sure no breaks in
wires from battery charger. Do you have an on board system? Check charger
out as well. Went through same thing this spring. I hate to tell you I
replaced battery charger and batteries before I found out a loose connector
on end of battery charger wire. Cost me about $400 I didn't need to spend.
Sounds basic but that's what burned me. Good luck

--
God Bless America

Josh The Bad Bear