My hybrid e-bike gets 200mpg

Generator: https://www.amazon.com/GENMAX-Generator，Ga... Charger: https://www.amazon.com/Battery-Charger-Lit... Alternatively you can just put 2 chargers of the same voltage in parallel to get a certain amount of power and it will work fine. To give an idea of how much charger wattage will affect your efficiency, I had a 360 watt charger before the 720 watt one and I only got around 120 mpg, and I had to stop and wait for the generator to replenish the battery. Cheap slow chargers will be even worse. Make sure to match your generator and charger properly (80% rated power is a good starting point).