21V lithium battery
Usually, it is composed of 5 18650 cells (or other shape models) connected in series. The single cell parameter is 4.2V2600mAh. Battery efficiency is another representation of battery capacity. p=uc=21*2600=54600mwh=54.6wh.
21V lithium battery
Usually, it is composed of 5 18650 cells (or other shape models) connected in series. The single cell parameter is 4.2V2600mAh. Battery efficiency is another representation of battery capacity. p=uc=21*2600=54600mwh=54.6wh.