OptiMate 3 is totally automatic and fully protected against user errors. There are no switches. I like that the charging lead is made of a much thicker grade of wire.lthink this will prevent it from snapping prematurely.
TecMate OptiMate 3 Battery Optimiser Charger
TecMate OptiMate 3 Dual Battery Optimiser Charger (SAE)
Optimate 3 Battery Charger 12V Quad Motorcycle Optimiser
Optimate 3 Battery Charger 12V Quad Motorcycle Optimiser charger
Optimate 3 Battery Charger 12V Motorcycle Optimiser
