It's normal for the battery indicator to drop during loads. Mine does that too. But if you go for a long ride, it should drop below 100% even at rest. I'm really interested in how many miles you get with this thing. If you get over 30, that is really good with a fat tire bike. I don't believe you will get anywhere close to what they claim on their website... 35-50 ebike, 50-60 PAS. Also, as AHicks mentioned their claims on regeneration are unrealistic...