Project Description

Li ion battery pack 7.4 v 4000mah

7.4 v 4000mah battery build by li ion 18650 cell 2s2p. Battery pack with PCB protection circuit. CMX offer custom size cable and connector.

battery 7.4 v 4000mah

Li ion 18650 battery pack 7.4 v 4000mah

  • Nominal voltage: 7.4 v
  • Nominal capacity: 4000mah
  • Cell type: Li ion 18650
  • Technology: Li ion
  • Approved certifications:UN38.3, CE, MSDS
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About li ion 18650 7.4 v 4000mah

CMX use high quality 18650 battery cell for all li ion battery pack 7.4 v 4000mah. li ion 7.4 v rechargeable battery apply with 2S2P 18650 battery. Charging voltage at 8.4 volt. If you need 2S li ion 18650 7.4 v chargers, please contact with us. We can custom make the battery charger with related charging connector.  18650 battery pack 7.4 v battery can be widely used for different applications, like POS machine, portable media player, toy RC, other portable electronics.

  • Battery pack built in PCB protection. over charge, over discharge, over current and short circuit.
  • With very long times cycle life up to 500 times
  • It can run well under different temperature environment condition. Wide temperature range.

If you think 4000 mah is not good enough. Here we provide 8800mah as well. Both of them 7.4 volt.

Product Details

Part Number Rechargeable 18650 battery pack 7.4 v 4000mah li ion battery pack
Rated Capacity  4000mAh
Nominal Voltage  7.4V
Max Charge Voltage  8.4V
Discharge Cut Off Voltage  5.5V
Charging Current  0.2
Max. Continuous Discharging Current  1C
Cycle Life  500 times
Discharge Rate  ≤1%
Dimensions (L*W*H)  40*40*70mm ±5mm / Customized
Weight  200g
Operating Temperature  Charging: 0 ~ 45℃/Discharging:-20 ~ 60℃
Storage Temperature  -10 ~ 45℃
Humidity  5% to 95% relative humidity
Certification  CE/RoHS/MSDS/UN38.3
Warranty  One year
Delivery period  7-20 days, depending on stock and quantity.
 Main protection function Overcharge, over discharge, over current, short circuit, etc.

Why work with CMX for li ion 7.4 v rechargeable battery

7.4 v rechargeable battery production
    20 thousand square meters plant 12 automatic production line 600,000 battery packs and chargers production capacity a month.
    Strict control for cleanliness in dust-free workshop from IQC,IPQC to OQC, we control every step strictly CE, UL, SGS, FCC, ROHS and ISO9001: 2000 certified.
    We dedicated and experienced engineering, manufacturing and quality control teams work close to support our customers from product design to mass production.
    Reply within 24 working hours. We use specialized equipment, well-known suppliers of materials to resolve customer issues, to test every product in 100% for the quality assurance.