2s1p是什麼意思

"2s1p" is a term used in the context of lithium-ion battery packs, where "s" stands for series and "p" stands for parallel. This notation describes the configuration of the cells within a battery pack.

Here's what the components of "2s1p" mean:

• "2s": This means two cells in series. When cells are connected in series, their voltages add up, but the total capacity (amp-hours) remains the same as a single cell. For example, if you have two 18650 cells each with a capacity of 3000mAh and a nominal voltage of 3.6 volts, when connected in series, the pack will have a total voltage of 7.2 volts (3.6V x 2) and a capacity of 3000mAh.

• "1p": This means one cell in parallel. When cells are connected in parallel, their capacities add up, but the total voltage remains the same as a single cell. For example, if you have two 18650 cells each with a capacity of 3000mAh and a nominal voltage of 3.6 volts, when connected in parallel, the pack will have a total voltage of 3.6 volts and a capacity of 6000mAh (3000mAh x 2).

So, a 2s1p battery pack would have two cells connected in series, resulting in double the voltage of a single cell, and a single cell in parallel, maintaining the same capacity as the single cell. This configuration is commonly used in electronic devices that require a higher voltage than a single cell can provide, such as power tools, electric bicycles, and drones.