Sears 8-10 amp about 14yrs old. No internal circuit breaker on the charger. The insurance adjuster who came to see the garage claim issues, had the exact same unit at home. He said hes was going to take his to the dump. No recall on the charger, he looked it up for me. I put the bike on the charger and went to get new gas, and it caught on fire while I was gone, all of 10 minutes.