Lithium battery pack process combination method.best battery for home inverter

　　1. Tandem combination

　　The series combination of batteries increases the overall voltage of the battery pack. For example, a 36V battery pack is required for a load. Since the voltage of a single lithium battery is 3.6V (3.6V for ternary materials and 3.2V for phosphoric acid batteries), 10 3.6V cells need to be connected in series to achieve a nominal voltage of 36V. If a 72V battery pack is required, 20 3.6V cells need to be connected in series.

　　2. Parallel combination

　　The parallel combination of batteries will increase the overall capacity of the battery pack. For example, if a customer requires a 7000mAh battery pack and we use 18350-700mAh battery cells for production, then 10 18650-700mAh battery cells need to be connected in parallel to achieve a capacity of 7000mAh to meet the customer's endurance needs.

　　3. Series parallel combination

　　In order to meet the needs of customers with different voltages and capacities, battery packs need to be designed and produced in series and parallel simultaneously. Generally, battery packs have both series and parallel connections, which is applicable to all types of battery packs, from electric bicycle batteries to industrial batteries, robot batteries, etc., which are combined through series and parallel connections of small batteries.

　　4. Calculation of the number of batteries used in series and parallel connection

　　Generally, there are both series and parallel battery packs. If a battery pack consists of 10S30P (10 series and 30 parallel) to form a 36V300Ah battery pack, then the battery pack contains 10 * 30=300 3.6V10Ah single cells and 300 small battery cells.

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