We have a bicycle with a Crystalyte hub motor and a Crystalyte CT3640 controller. It works fine with NiMH batteries, so we got some Dewalt DC9360 "36 volt" batteries, charged them up with a Dewalt charger, and tried them out. As soon as the controller was turned on, the battery went dead. The charger also indicates that it is a dead battery, and won't charge it again. Thought it might be just the particular battery, so tried another. Same thing. Tried the NiMH pack again--everything works fine.
So, it works okay with the NiMH batteries, but it kills a DC9360 battery as soon as it is turned on. The clamp-on ammeter says it draws a tenth of an amp or so at that point, when the switch is turned on, no throttle.
Any ideas?? Any help, suggestions, or ideas will be greatly appreciated!
Jim, in Western Wisconsin