I purchased a kill-a-watt meter for charging my batteries. It reads a 120v from wall, 2amps when charger attached. I charged the batteries today and the charger turned off when I checked but it was several hours later when I checked it. It read that I used .21 kwh. How can I use this information to determine how long it charged the batteries for. If the charger uses 240watts(120v x 2 amp) can I just divide that by 60 which would be 4 watts a minute. Then divide that into the .210kwh or 210watts and determine that the charger ran for about 52 minutes.
Is there some way to determine the overall range of the bike from this information. I had driven the bike about a mile today but it had also sat for close to 48 hours since my last charge. My controller is attached to the battery pack and is turn on/off with the key switch but I believe it still draws some current even when not turned on.