Due to the limited voltage and capacity of single battery, series parallel combination is required in actual use to obtain higher voltage and capacity to meet the actual power supply demand of equipment.

　　Lithium battery in series: when the voltage is added, the capacity remains unchanged and the internal resistance increases.

　　Lithium battery in parallel: the voltage is unchanged, the capacity is added, the internal resistance is reduced, and the power supply time is extended.

　　Series parallel connection of lithium battery: there are both parallel connection and series connection between battery packs, which increases the voltage and capacity.

　　Series voltage: 3.7V single battery can be assembled into a battery pack with a voltage of 3.7 * (N) V as required (N: number of single batteries)

　　Such as 7.4V, 12V, 24V, 36V, 48V, 60V, 72V, etc.

　　Parallel capacity: 2000mAh single battery can be assembled into a battery pack with a capacity of 2 * (N) Ah as required (N: number of single batteries)

　　Such as 4000mAh, 6000mAh, 8000mAh, 5Ah, 10Ah, 20Ah, 30Ah, 50Ah, 100Ah, etc.

Read recommendations:

601848 500mAh 3.7V

Classification of electrolytes for lithium batteries.18650 li ion rechargeable battery

As of my knowledge cutoff in September 2021, the lithium-ion battery industry was experiencing a sig

household energy storage battery direct sales

9v batteries