Well, it's almost time to put the yard robot away for the winter. It will have problems navigating in 2 feet of snow.
My understanding is that it's good to keep the SLA batteries on a float charger when they are stored for long periods. I've seen some "good" chargers that have a charge, trickle and float mode - they are about $150. I really don't want to spend that much. Does anyone know of a cheaper float charger? Ideally, I want a 24V charger with all 3 charging modes with LED indicators of what mode it's in. A 2A charger is big enough for my needs.