7.4V high quality rechargeable li ion battery
- Payment Type:
- L/C, T/T, Paypal, Money Gram, Western Union
- Incoterm:
- FOB, CFR, CIF
- Min. Order:
- 10 Piece/Pieces
- Min. Order:
- 10 Piece/Pieces
- Delivery Time:
- 15-25 Days
- Transportation:
- Ocean, Land, Air
- Port:
- Shenzhen, Hongkong, China
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Contact Now| Place of Origin: | China |
|---|---|
| Productivity: | 100000 per month |
| Payment Type: | L/C,T/T,Paypal,Money Gram,Western Union |
| Incoterm: | FOB,CFR,CIF |
| Transportation: | Ocean,Land,Air |
| Port: | Shenzhen,Hongkong,China |
Lithium ion battery
Also known as a secondary lithium battery. Under the 20 ℃ can be stored for more than six months, it is because of its low self-discharge rate, and most of capacity can be restored.
Self-discharging phenomenon of lithium battery exists. If the battery voltage is under 3.6v for a long time, it will lead to over-discharge of the battery and damage the internal structure of the battery, thus reducing the battery life. Therefore, the long-stored lithium battery should be recharged every 3~6 months, that is, the charging voltage is 3.8-3.9v (the best storage voltage of lithium battery is about 3.85v), and it is appropriate to keep it at a discharge depth of 40-60%, rather than full. Batteries are to be kept at 4 ℃ ~ 35 ℃ or moisture-proof packaging in dry environment. Stay away from heat sources and avoid exposure to direct sunlight
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
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NO. |
Items |
Specifications |
||
|
1 |
Charge voltage |
8.4V |
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|
2 |
Nominal voltage |
7.4V (2S4P) |
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|
3 |
Initial impedance |
90mΩ |
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|
4 |
Nominal capacity |
8.8Ah |
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|
5 |
Minimum capacity |
8.6Ah |
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|
6 |
Charge current |
Standard Charging::0.2C5A (1.76A) Rapid charge:0.5C5A C(4.4A) Max |
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|
7 |
Standard Charging method |
1.76A(0.2C5A) CC(constant current)charge to 8.4V,then CV(constant voltage8.4V)charge till charge current decline to ≤88mA(≈0.01C5A) |
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|
8 |
Charging time |
Standard Charging:6.5hours(Ref.) Rapid charge: 3.5 hours(Ref.) |
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|
9 |
Max.discharge current |
4.4A(0.5C5A) |
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|
10 |
Discharge cut-off voltage |
5.5V |
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11 |
Shelf life |
2 years |
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12 |
Cycle life (0.2C5A/0.2C5A) |
500 times,≧80%DOD |
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|
13 |
Operating temperature |
Charging: 0℃~45℃ Discharging:-20℃~+60℃ |
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|
14 |
Storage temperature |
Less than 1 month |
-10℃~+45℃ |
Percentage of recoverable capacity :85% |
|
Less than 6 month |
+18℃~+22℃ |
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15 |
Pack Weight |
Approx:395g |
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|
16 |
Pack Dimension |
Length: Max76.00 mm Width: Max68.00 mm Thickness: Max 38.00 mm |
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