The reasons why each 16.8V lithium battery has different power:
1. Like other secondary batteries, lithium ions have issues with capacity loss after charge and discharge cycles. The reasons for these problems are numerous. many factors, including factors related to materials and manufacturing processes.
2. There are some differences between the two batteries, and the natural sizes are also different.
16.8 is a 4 cell battery
The voltage of a single lithium battery when fully charged is 4.2V and the charger voltage does not cannot be higher than 4.2V. 4 cells connected in series can reach 16.8V when fully charged, so the charger should be equipped with a voltage of around 16.5-16.8V. If it is lower, it will not be fully charged. If it exceeds 16.8V, it will damage the. battery (if the bbattery has a protective plate, charging will be forced to stop