Designed with protection circuits built in Li Ion Battery Cell Pack has effectively prevent Lithium Ion Battery from fire ,swollen and explosion .Li-ion batteries have been widely used in portable electrical appliances such as laptop computers, cameras and mobile communications due to their unique performance advantages. The high-capacity lithium-ion batteries currently being developed have begun trials in electric vehicles and are expected to be one of the main power sources for electric vehicles in the 21st century and will be used in artificial satellites, aerospace and energy storage. With energy shortages and environmental pressures around the world. Lithium battery is now widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate material battery, which promotes the development and application of Lithium Battery industry.
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 deep cycle lithium battery
| 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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