When this battery is connected in series, the voltage and capacity change.
1. Voltage increase: Multiple batteries are connected end to end, i.e. the negative of the first cell is connected to the positive of the second cell, and so on. . As the voltage increases, the capacitance remains unchanged.
2. Current remains unchanged: Current remains unchanged when connected in series. For example, the current of 700MAH lithium batteries is still 700MAH after being connected in series.
3. Capacity remains unchanged: Capacity remains unchanged when connected in series. For example, the capacity of a 1200 mAh lithium battery is still 1200 mAh after being connected in series.