As we know, even in the Europe with rigorous regulations, some fire accidents happened frequently during the charging for an e-bike battery every year, more and more people realize that a good charger is extremely important. However there are still some e-bike companies in haggle over every ounce at a charger which is vital but the cost of below 1% of the vehicle. What is the difference between $ 12 and $ 22 of the charger ? What a good charger should be ? Let’s think about it.