hi, I have just found this excellent site and joined. I'm having problems with the battery on my byocycle bike. When the charger light is green the static charge lights on the top of the battery are all green. With the ign switch in the ON position testing the four slots on the bottom with my multi meter the outer +\-- slots show 41.6volts the inner +\-- slots are dead . I bought the bike second hand so don't know how old the battery is, I think the bike is 2013/14. Thanking you in advance for anyone's ideas. John