The warts are for storage. Buzzing a top charge every 4-6 weeks is still highly recommended. 5% amperage of total amp hour capacity until voltage reaches 15.0 then resume the wart. Wish somone out there was smart enough to realize this is the protocol flooded batteries scream for.
I like transformer based 15 volt warts. They are near indestructable for storage charge. If I am going to spend 65 dollars on a charger it is going to be a Megawatt. A sealed srorage charger might be worth the high bucks if it is used in the rain for a boat or ski doo. But for a single battery wintering in a basement seventy bucks is a bit rich for my blood.
