My 2001 Gem e825 has new ride for fun charger and charges to 100%. Batteries are one month old. Trojan lead acid. If I unplug the charger and plug it back in right away, it goes down to 80 %. Can’t figure why?
Seeing 80% on the display of the SCO Quikcharge 7210, AKA: R4F charger, is normal when you do that. It’s how it’s programmed. You actually want to do that and let it charge to completion a second time about every 10th charge to equalize the batteries.