18650 lithium battery (Li-ion, Lithium Ion Battery): Lithium battery has the advantages of light weight, large capacity, no memory effect, etc. The energy density of lithium ion battery is very high, and its capacity is 1.5 ~ of the same weight of Ni-MH battery. 2 times, and has a very low self-discharge rate. In addition, lithium-ion batteries have almost no “memory effect” and do not contain toxic substances.
They are widely used in various electronic fields: often used in high-end glare flashlights, portable power supplies, wireless data transmitters, electric thermal clothing, etc.
Internal resistance: 13±2mΩ
Nominal voltage: 3.6V
Minimum capacity: 2450mAh (0.5C discharge to 2.75V)
Average weight: 46±1.0g
Discharge termination voltage: 2.75V (discharge current is greater than 5C, cut-off voltage 2.5V)
Charging upper limit voltage: 4.20±0.05V
Standard charging current: 0.5C
Fast charging current: 1.0C
Standard discharge current: 0.5C
Maximum continuous discharge current: 10C
18650 battery life theory is 1000 cycles of charging. Because of the large capacity per unit density, most of them are used in laptop batteries. In addition, because the 18650 has a very good stability at work, it is widely used in various electronic fields: often used in high-end glare flashlights and portable Power supply, wireless data transmitter, electric heating warm clothing, etc.
The battery is in a half-full state when it is packaged, and the manufacturer’s name, product name, model, production batch number, nominal voltage, quantity, Gross weight, date of manufacture and corresponding internal resistance and capacity. Battery pack: 100 batteries per box; 4 boxes per box, 400 batteries in total
High energy density
Green energy and pollution-free
Long cycle life
No memong effect
1.Before testing or using the battery, please read this specification carefully to prevent improper operation from causing battery failure, heat generation, leakage, fire or even explosion; abuse in violation of the usage conditions in this specification is strictly prohibited.
2.When charging and discharging the battery, please use special testing equipment for lithium-ion batteries. It is strictly forbidden to use ordinary constant current and constant voltage sources and other devices that cannot limit voltage and current to charge and discharge the battery to prevent the battery from being overcharged and overdischarged. Function failure or danger.
3.When charging and discharging the battery or inserting the battery into the device, be careful not to reverse the positive and negative poles of the battery, otherwise the battery will be overcharged and over-discharged, causing serious battery failure or even explosion hazards.
4.Do not weld the battery directly, and it is strictly forbidden to disassemble the battery.
5.Do not put the battery in your pocket or bag with metal items such as necklaces, hairpins, coins or screws, and do not store the battery with the above items. It is strictly forbidden to use metal or other conductive materials to directly connect the positive and negative poles of the battery to make the battery A short circuit occurred.