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7.4v 18650 Lithium Ion Battery Manufacturer

7.4v 18650 Lithium Ion Battery Manufacturer

7.4v 18650 Lithium ion Battery Manufacturer battery datasheet:

1. voltage: 7.4v

2. capacity: 8800mah (or OEM)

3. size: 37*74*68mm (or OEM)

4. type: 18650 lithium ion battery, 8.4 18650 lithium ion battery

5. MOQ:500pcs

Product Details

7.4v 18650 Lithium ion Battery Manufacturer

1. Battery Datasheet:

Manufacturer make a battery needs specified datus before any production.

1Nominal Voltage:7.4v
2Nominal Capacity:8800mAh
3Composition: Samsung INR18650 22P 2S4P
4Charging Method:CC-CV
(constant voltage with limited current)
5Charging Current:

         Standard charge: 0.2C   

Rapid charge: 0.5C

6Charging time:

stand charge: 5.5h 

 Rapid charge: 2.5hrs

7Max. Charge Current:5A (ambient temperature 25℃)
8Max. Continuous Discharge Current:4400mA (0.5C)
9Discharge cut-off voltage:6.0v±0.08V
10Max Charge voltage:8.4V±0.03V
11Size:37*74*68mm max (T*W*H)

Operating Temperature:  Charging : 0~45℃
Discharging : -20~60℃
13Storage Temperature:

          > 12 months: -20℃~25℃                            

 <3months: -20℃~40℃                     

15Weight: Approx 0.4kg
16Internal resistance:50mR

BMS P+ & P- leads out two piece cable, red & black, which represents battery pack anode and cathode polarity respectively. It should be connect onto medical device main board for both charging and discharging purpose.

2. Battery Notice:

  • --  From the beginning of the shipment date, shelf-life is 24 months (storage temperature should less than25℃), or has completed 300 cycles ,which ever comes first. 

  • --  The capacity of delivery cell is approximately charged with 50% capacity. Please prevent the cell from violent vibration,impact,exposure,moisture during transportation.

3. Battery Warning:

--  Do not transport and store the battery together with metal objects such as necklaces, hairpins.

--  Do not strike , throw or trample the battery.

--  Do not directly solder the battery and pierce the battery with a nail or other sharp object.

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