7.4V 4.4Ah 18650 rechargeable battery lithium cells

As new and environmentally friendly ennergy in the word, Lithium Batteries are widely used in energy storage power supply systems such as hydraulic power, thermal power, Wind Power and Solar Power stations, uninterrupted power supply for post and telecommunication, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and other fields.

Since the Rechargeable Battery lithium was formed by some or many single cells ,so these lithium ion battery pack ,military lithium ion battery ,lithium polymer battery packs was easily customized in series&in battery pack parallel different shape

The above models are available in YFJ company

Model:3.7V 9Ah ,...

Model:7.4V-2.2Ah,4.4Ah,6.6Ah,8.8Ah......

Model: 12V - 4Ah, 5Ah, 6Ah, 8Ah, 9Ah, 11Ah, 12Ah, 13Ah, 14Ah, 15A h, 16Ah, 17Ah, 18Ah, 19Ah, 20Ah

Models: 24V -- 4.4Ah, 5Ah, 6.6Ah, 8.8Ah, 9Ah, 11Ah, 13.2Ah, 15.4Ah, 17.6Ah, 19.8Ah, 22Ah, 25Ah, 33Ah

Models: 36V -- 4.4Ah, 5Ah, 6.6Ah, 8.8Ah, 9Ah, 11Ah, 13.2Ah, 15.4Ah, 17.6Ah, 19.8Ah, 22Ah, 25Ah, 33Ah

Model: 48V -- 4.4Ah, 5Ah, 6.6Ah, 8.8Ah, 9Ah, 11Ah

We can also provide OEM/ODM service for customers

7.4V 4.4Ah li ion batteries

NO.	Items		Specifications
1	Charge voltage		8.4V
2	Nominal voltage		7.4V (2S2P)
3	Initial impedance		150mΩ
4	Nominal capacity		4.4Ah
5	Minimum capacity		4.2Ah
6	Charge current		Standard Charging::0.2C5A (0.88A) Rapid charge:0.5C5A C(2.2A) Max
7	Standard Charging method		0.88A(0.2C5A) CC(constant current)charge to 8.4V,then CV(constant voltage 8.4V)charge till charge current decline to ≤44mA(≈0.01C5A)
8	Charging time		Standard Charging:6.5hours(Ref.) Rapid charge: 3.5hours(Ref.)
9	Max.discharge current		2.2A(0.5C5A)
10	Discharge cut-off voltage		5.5V
11	Shelf life		2 years
12	Cycle life (0.2C5A/0.2C5A)		500 times,≧80%DOD
13	Operating temperature		Charging: 0℃~45℃ Discharging:-20℃~+60℃
14	Storage temperature	Less than 1 month	-10℃~+45℃	Percentage of recoverable capacity :85%
		Less than 6 month	-20℃~+35℃
15	Pack Weight		Approx:198g
16	Pack Dimension		Length: Max68.00 mm Width: Max38.00 mm Thickness1: Max 38.00mm

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