What are the differences between parallel and series batteries?

The difference between parallel and series batteries is the difference in voltage and capacity. Take a lithium battery with a voltage of 3.7V and a capacity of 3000mAh, which is also two batteries. If it is two strings, the battery pack model is: 7.4V /3000mAh, if it is a dual combination, the model becomes: 3.7V/6000mAh. When connected in series, the voltage will increase and the capacity will remain unchanged; when in parallel, the increase will be the capacity but the voltage will remain unchanged. But the batteries we often use are in series and parallel, such as: three series and four parallel and so on. Hope to help you. The parallel voltage of the battery remains unchanged, and the power supply current can be increased. The power supply voltage can be increased when the battery is connected in series. The current is different. 1. Dry batteries are widely used in daily life. 2. Series connection: Connect the positive electrode of the dry battery to the negative electrode of the next battery, and then connect it in sequence. This is the series connection. The advantage of series connection is that the voltage (V) of the power supply is doubled, which is generally used to drive appliances with a larger rated voltage. 3. Parallel connection: Generally, the voltage of the battery is the rated voltage of the related electrical appliance, and the parallel power supply of the battery is adopted. Under the condition that the voltage remains unchanged, the current under the rated voltage can be increased to better drive the electrical appliance. 4. Summary: According to the different needs of different electrical appliances, the use of battery series and parallel connection can achieve unexpected results. Under the same voltage, if the battery is used in parallel, the use time will be increased, and the battery series is to increase the battery voltage. It is used to match the voltage of the consumer. If the voltage is low, the consumer cannot start. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Introduction to the characteristics of lithium battery packs