Hi just checking does anyone have this issue. I plugged the battery into be charge but the green light on the battery is not going past 20% no matter how long I leave it in for (24 hours) When I press the battery button it goes to 100% for 5 seconds which would appear to be a full charge. On the bike it also has full bars. Is this just poor design of battery to confuse user or is there something wrong with it. Thanks