The capacity of a single 18650 battery generally ranges from 500 mAh to 3000 mAh.
Typically, 18650 batteries are used in power tools. Battery capacity is very important. Battery life is the focus of many tool users' attention. A 12.6V battery is made up of 3 cells with one voltage. 4.2 V batteries are connected in series. The voltages of the series circuits are added and the capacitance remains unchanged.
If the single capacity of these three batteries is 2000 mAh, then the final battery has a voltage of 12.6 V (what we usually call a 12 V battery) and a capacity of 2000 mAh (2.0Ah). If for 16.8V or 21V, you just need to increase the number of batteries. 16.8 V has 4 batteries and 21 V has 5 batteries.
18650 lithium batteryUsage:
The theoretical life of the 18650 battery is 1,000 charge cycles . In factOn account of their large capacity per unit density, most of them are used in laptop batteries. In addition, because 18650 has very good work stability, it is widely used in various major electronic fields: often used in high-end, portable, bright flashlights. Power supplies, wireless data transmitters, electric thermal clothing and shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.
Reference for the above content: Baidu Encyclopedia-18650 lithium battery
c18650p is alithium-ion battery . The c18650p high safety performance lithium-ion battery has high safety performance, does not explode, does not burn, is non-toxic, non-polluting, and has passed RoHS brand certification. the number of cycles is more than500 times; good high temperature resistance, 65. The discharge efficiency reaches 100% under high temperature conditions. In order to prevent battery short circuit, the positive and negative electrodes of the 18650 lithium-ion battery are separated. A protection plate can be installed to prevent the battery from overcharging and overdischarging, which can also extend the life of the battery.
Using the c18650p lithium battery
The theoretical life of the c18650p battery is 1,000 charge cycles. Due to their large capacity per unit density, most of them are used in laptop batteries. In addition, because 18650 has very good work stability, it is widely used in various electronic fields: often used in high-end bright flashlights, portable power supply. supplies, transmitterse wireless data, electric thermal clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.