INR18650-3000mAh Li-ion Rechargeable cylindrical battery,18650 battery,High security lithium ion battery,power tool lithium ion battery supplier

3000mah Li-Ion Battery Product Details:

Items   Specifications

2.1 Model INR18650-3000

2.2 Min. Capacity 2950mAhCharge: 0.5C, 4.20V,CCCV 150mA cut-off, Discharge: 0.2C, 2.5V discharge cut-off

2.3 Nominal Voltage 3.7V

2.4 Max. Charge Voltage 4.20 V

2.5 Discharge Cut-off Voltage 2.50V

2.6 Standard charge CCCV, 1.50A, 4.20 ± 0.05 V, 150mA cut-off

2.7 Max. Charge Current CCCV, 4A, 4.20 ± 0.05 V, 100mA cut-off

2.8 Max. Continuous Discharge Current 15 A

2.9 Max. Pulse Discharge Current 30A（ 2s pulse ）

2.10 Max. Diameter ≤18.40 mm

2.11 Max. Height ≤65.50mm

2.12 Weight ≤ 48. 0g

2.13 Impedance ≤ 18 mΩ

2.14 Operating temperature (surface temperature) Charge: 0℃～50℃

Discharge : -20℃～75℃

Storage: -20℃～45℃

Characteristic of Long life 18650 battery

a.Environmental conditions

Unless otherwise specified, all tests stated in this specification are conducted at temperature 23±3°and humidity under 65%.

b. Measuring equipment

(1) Amp-meter and volt-meter

The amp-meter and volt-meter should have an accuracy of the grade 0.5mA and mV or higher.

(3)Slide caliper

The slide caliper should have 0.01 mm scale.

(4)Impedance meter

The impedance meter with AC 1kHz should be used.

c. Standard charge

charging the cell CCCV with charge current 0.5C, constant voltage 4.2V and 150mA cut-off in CV mode at 23℃ for capacity.

d. Standard discharge capacity

discharge current of 600mA(0.2C) with 2.5V cut-off at 23℃within 1hour after the standard charge.

Electrical Characteristic for power tool rechargeable Li-ion battery supplier

NO. Item Standard Test Method

1 Discharge rate capabilities 0.2C≥2950mAh0.5C≥2900mAh1.0C≥2850mAh3.0C≥2800mAh5.0C≥2700mAh Standard charged, then rest for 30mins and discharge at 0.2C、1C、3C、5 C and 2.5V cut-off

2 capacity retention and recovery Residual capacity≥94％ Recoverablecapacity≥*98％ Standard charged under the condition of normal atmospheric pressure and the environmental temperature of 23℃±3℃， Stored for 28 days, then discharge at 0.2 C to 2.75V measuring residual capacity; Then standard charge/discharge measure recoverable capacity.

             3 Low TemperaturePerformance discharge capacity≥85% rated capacityno distortion and no rupture The cell shall be charged in accordance with the standard charge. Then stored in the temperature of -10℃±1℃ for4h, Discharge at the constant current of 0.2C down to the end-of-discharge voltage 2.750V.

4 Cycle Life 1C charged the cell to 4.2V, then change to charge with constant voltage till the current less than or equal to 0.04C, rest for 30mins; 10A discharge to 2.75V, one cycle is finished, rest for 30mins. Then repeat above steps, when capacity is less than 70% of initial capacity, the battery life is over.

Safety  Characteristic of car 18650 battery

NO. Item Standard Test Method

1 Overcharge No fire、No explosion After standard charge, rest for 10mins; then charge at constant current of 3C to 10V.(or charge at 3C for90mins).

2 Forced discharge No fire、No explosion The battery to be discharged with standard discharging condition, Inverse charge current =1C；time: ≥90mins

               3 Short Circuit test No fireNo explosion The battery to be fully charged with standard charging condition, and short the positive and negative terminals with wire resistance ≤50mΩ.Tests are to be conducted at 23℃±3℃  and at 55℃ ±5℃, keep 24h or casetemperature decline to 20% of the max temperature ,test is over.

4 Crush test No fire/No explosion A battery is crushed between two flat surfaces. The applied force is 13 kN±1kN by hydrocylinder, Once the maximum pressure has been obtained or voltage decrease to 1/3 of nominal voltage sharply, then release pressure.

5 Shock test No fire/No explosion The full charged battery is fixed on shock table, to force a certain shock to three mutual vertical direction, in initial3ms, the min. average accelerati