Product Description

New EFAN 40AMP 18650 2000mAh 3.7v Most Powerful mechanical mod battery :

Name: best 18650 battery EFAN 40AMP 18650 2000mAh 3.7v Most Powerful Cell
Brand: EFAN
Availability: InStock

40 Amp Cell
2000 mAh
Most Powerful mechanical mod battery

Always use caution when using a sub ohm atomizer and a 40 amp battery. Proceed with caution.

Weight: 50g/pc

	Item			Specifications
4.1	Typical Capacity			2030mAh @ 0.2C Discharge
	Minimum capacity			2000mAh @ 0.2C Discharge
4.2	Nominal voltage			3.7V
4.3	Standard Charge			CC/CV,0.2C5A, 4.20V
4.4	Standard Discharge			CC,0.2C5A, 3.00V
4.5	End-of-charge Voltage			4.20V±0.05V
4.6	End-of-charge Current			0.01 C5A (At CV mode)
4.7	End-of-discharge Voltage			3.00 V
4.8	Charging Time			8.0hours(standard charge)
4.9	Quick Charge Current			2000mA (1.0 C5 rate)1C charge
4.10	Quick Discharge Current			20A (10.0 C5 rate)10C Discharge
4.11	Max Discharge Current			40A (20.0 C5 rate)20C Discharge
4.12	Initial Impedance			Max:18mΩ
4.13	Weight			Approx:40.0±2g
4.14	Operating temperature			Charging: 0℃~45℃Discharging:-20℃~60℃
4.15	Storage temperature			-5℃~35℃
4.16	Storage Humidity			≤75% RH
4.17	Appearance			Without scratch, distortion, contamination and leakage
4.18	Standard environmental condition			Temperature) : 25±5℃Humidity : 45-75%RHAtmospheric Pressure) : 86-106 KPA
4.19	Temperature Dependence of Discharge Capacity@ 0.2C Discharge
Charge temperature		Discharge temperature
25℃		-10℃	0℃		15℃	25℃	40℃
Relative Capacity		50%	80%		90%	100%	80%

	Item	Test Methods and Condition	Criteria
5.1	0.2C Capacity	After standard charging, rest battery for 10min, then discharging at 0.2C to voltage 3.0V, recording the discharging time.	≥300min
5.2	Cycle Life	Constant current 0.5C charge to 4.2V, then constant voltage charge to current declines to 0.01C, rest 10min,constant current 0.5C discharge to 3.0V,rest 10min. Repeat above steps till continuously discharging capacity Higher than 80% of the Initial Capacities of the Cells	≥300 times
5.3	Capability of keeping electricity	20±5℃, After standard charging, rest the battery 28days, discharging at 0.2C to voltage 3.0V, recording the discharging time.