18650 battery High security lithium ion battery manufacturer from China Jiangsu Sunpower Co., Ltd.

18650 battery High security lithium ion battery

Payment Terms:	T/T,L/C
Place of Origin:	Jiangsu, China (Mainland)


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Product Detail

Production Capacity: 12MILLION PIECES PER MONTH

Delivery Date: 30-45DAYS

Packing: CARTON BOX

Brand Name: Sunpower

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.

(2) Slide caliper

The slide caliper should have 0.01 mm scale.

(3) 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.

Ship

The cells might be damaged during shipping by shock. If any abnormal features of the cells are found such as deformation of the cell package, smelling of an electrolyte, an electrolyte leakage and others, the cells shall never be used any more. The Cells with a smell of the electrolyte or a leakage shall be placed away from fire to avoid firing.

Storage of power tool 18650 battery

The cell shall be stored at the environmental condition of -20℃- 45℃ and 65%±20% RH. The voltage for long time storage shall be 3.5V-3.7V range. If the cell has to be storied for a long time (Over 3 months), the environmental condition should be: Temperature: 23℃±3℃Humidity: 65%±20％RH;please activate the battery once every 3 months according to the following method: Charge with current 0.2C until the voltage achieve to 3.7V.

The company founded in 2014, focus on producing cylindrical power lithium-ion batteries. The company supply Electric vehicle cylindrical lithium battery, which include 1500mAh, 1300mAh, 2000mAh, 2200mAh, 2500mAh, 2600mAh Li-ion battery and 3000mAh Li-ion battery. All adopt the most advanced extrusion coating production technology and yearly production reaches to 250 million Ah power type 18650 High security lithium ion battery. Our products have high quality and competitive prices.