Can an electric bike be peddled when batteries die?
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The Bottom Line: It's possible to ride your electric bike without power, but you'll use more physical effort and get tired more easily. If your battery dies while riding, the general rule of thumb is that you can still pedal it home- just be prepared for some heavy sweating!
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Presumably this BMS is also used for LiFePO4 batteries. I wonder what the cut-off voltage is because LiFePPO4 is normally 2.0v - much lower than these should have. I bet the bike's relying on the controller for low voltage cut-off. I might test it later to see. My Turbo Trainer makes a great test rig because you can adjust the load on the wheel.
E-bikes are pedal-assist, which means they use a small electric motor to boost the power created by your own pedalling. This means that to ride an e-bike you still have to pedal, which still takes effort. And that’s why it’s not cheating — you pedal and the bike just boosts your power.
The battery is charged by plugging it into the wall, and the more you pedal the farther you can go. Your pedaling conserves the battery, but it doesn’t actually charge it. The technology does exist that would allow you to charge your bike by pedaling, but it’s expensive and we’ve found that it just doesn’t make sense in the real world.
Electric bikes can be quite finicky, especially if you’re a beginner. An electric bike only works if all the components are functioning correctly, which means there is no easy and quick way to troubleshoot major problems. One of the most common e-bike problems is the power cutting out. Many times, the problem is a loose connection or corrosion.