Once the ammeter reaches or nears zero, disconnect the charger from the mains before removing the clips. Old Car Battery Charger - How to use it? | DIYnot Forums
clip to a solid metal part of the vehicle chassis away from the battery to act as a ground (this minimizes spark risk). Plug the charger into the mains and switch it on. Monitoring: Because this is an older-style manual charger, it will not stop automatically selmarturbo4batterychargerinstructions