I just received my new Frey AM1000 V6 bike. I am confused as to whether the battery is fully charged or not. When i plugged that battery into the charger the red light on the charger as well as the fan went on as it should. After only about 1-2 hours the charger showed a green light and the fan had stopped. When i placed the battery on the bike the display readout on the Bafang display only shows about 32-35% charged. When I switch the display over to read voltage in reads approx 46 volts. Is the battery fully charged? The Bafang display is saying it is not but when i go to plug the battery back into the charger the red light comes in for about 10 minutes as does the fan then changes back to a green light and the fan shuts off. I tried using a voltmeter and the charger reads 54.5V and the battery reads about the same. Any ideas???