Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca
You have a lil light on the battery pack that will light up while charging and go out when it is charged. Sometimes a new pak will take longer than the 14 hours in the manual.
The light on mine never goes out but it gets dimmer when it's fully charged. I usually leave it plugged in overnight, about 8-10 hours, but I've never timed how long it takes for the light to dim.