I have both. Cutoffs and NOCO Genius 1 "battery maintainers" (several - only trickle charger I've had that stays cool). Sale at Amazon I mentioned is now over. Also have a 55a "dumb" charger for very, very low batteries, a 200A roll around, and a couple of "desulphating" chargers, and a couple of jump boxes. Amazing what you acquire over about a half century, 35 years in the same place.
Oh and a 15w solar charger on the one that is under cover outside.