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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