I have had the same charger for close to 40 years. Just a simple 10 amp charger with both 6 and 12 volt settings. Nothing fancy but it gets the job done. I use it on just about everything from car, rv and lawn tractor batteries.
John
~ J Lucas 2006 GMC Envoy 4.2 I6 2023 Ram 2500/Cumins 6.7 I6 2010 Jeep Grand Cherokee (Wife’s) 2002 Silverado 2500 Gas 6.0 1941 Chevy 1/2-Ton 1942 Chevy 1.5-Ton SWB In the Gallery My Flicker Photos!