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18650 Rechargeable Lithium Ion Battery

As a professional 18650 lithium ion battery supplier, Great Power 18650 lithium batteries for sale come in both flat and button top styles and usually boast 300-500 charge cycles. The main advantages are high safety performance, no explosion, no combustion; Non-toxic, pollution-free, with RoHS trademark certification; And high-temperature performance; 65 degrees of power down the efficiency of 100%. With its affordable price and lightweight, the lithium ion battery cells 18650 now is used for scooters, energy storage, and so on.

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18650 Lithium Battery Dimensions

ItemsSpecification
MaterialNCM
SizeDiameter18.3±0.2 mm
Height65±0.3 mm
Weight44.0±1.0 g
IR (AC 1Hz)<15 mΩ
IR (DC (10A-2A))<25.5 mΩ
Nominal Voltage3.6 V
Standard Charging ModeCC-CV, 0.5C, 4.2V, 100mA cut-off
Charging TimeStandard Charging (0.5C)120min
Rate Charging (3A)60min
Charging CurrentStandard Charging Current1 A
Max. Charging Current3 A
Discharging CurrentCut-off Voltage2.5 V
Max. Continuous Discharging Current20 A (without temperature cut-off)
    30 A (80℃ cut-off)
Discharging CapacityStandard Discharging (0.2C)≥2000 mAh
Rate Discharging (10A)≥1950 mAh


How Long Does 18650 Battery Last?

Most modern 18650 lithium ion batteries for sale have a typical cycle life of 300-500 cycles (charge-discharge cycles). When in high amplifier or high leakage cases, this can be greatly reduced to 200 cycles. If you exceed the maximum discharge current limit (A), you can reduce the cycle life up to 50 cycles. Under optimal conditions, your 18650 lithium iron phosphate battery cells can reach more than 500 cycles. Some chemicals can cycle thousands of times to reach 80% of their capacity.


18650 Lithium Iron Phosphate Battery Applications

This sort of 18650 lithium cells are regular compared with 21700 lithium rechargeable battery in applications, for example, PC battery packs, spotlights, electric vehicles, cordless apparatuses and different gadgets that require compact force.

18650 rechargeable lithium ion battery is used in many electronic devices, such as wearable battery pack. Its internal components consists of three layers of sheets, and electrons flow inside the sheet when the load is connected to the battery. This natural flow of electrons suggests that these electrons are stored in an unstable condition before the load is connected to the battery. To understand this rationale more effectively, we need to understand the technological advances in lithium-ion batteries. These unstable electrons are stored in a container-like something called graphite, It has a much higher electrochemical potential. Before storing the electrons, they are separated from the atomic structure of the element.

Lithium is a metal that is more likely to lose electrons from the outer layer, so the metal is very lively. As a part of the metal oxides, the lithium atoms are very stable.When using external power sources, its positive poles attract electrons, and by using an electrolyte, it blocks the flow of electrons, and as a result these electrons pass through an external circuit, trapped between graphite layers.

Similarly, the negative electrode of the power source can attract lithium ions, which can also be trapped in the graphite layer.It is precisely because of this phenomenon that lithium ions are stored at a higher electrochemical potential. When the power supply is removed and the load is connected to the battery, all electrons trapped in the graphite layer begin to flow through the load to generate electricity.


18650 Lithium Batteries for Sale Application
Lithium Battery Cells 18650 Application
18650 Lithium-ion Batteries for Sale Application

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