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3.7v 4000mah Li Ion Battery Pack Rechargeable 2S1P With Connector

3.7v 4000mah Li Ion Battery Pack Rechargeable 2S1P With Connector

3.7v 4000mah Li Ion Battery Pack Rechargeable 2S1P With Connector

Product Details:

Place of Origin: China(Shenzhen)
Brand Name: DELONG
Certification: CE/ROHS/etc
Model Number: DEL-DC3740

Payment & Shipping Terms:

Minimum Order Quantity: 100 units
Packaging Details: Standard Export Package
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 10000 units per day
Detailed Product Description
Model: DEL-374000 Nominal Voltage: 3.7v Or Other
Nominal Capacity: 4000mAh Size: Custom
Weight: About 100g Battery Type: 18650 Lithium-ion Cell
Connector: Custom Or Red/black Wire Switch/indicator: Available


3.7v 4000mah Li Ion Battery Pack Rechargeable 2S1P With Connector





model DEL-374000
Type Li-ion battery pack with red/black wire
Battery Cells A Grade quality 18650 battery
Nominal voltage 3.7v 1S2P
Capacity 4AH/customized
Input 4.2v
Out-put 3-4.2V
Max continuous charge/discharge current adjustable
Charger Included charger:US plug/EU plug/UK plug
Connectors Custom
Protection 2S PCM,over-charge/discharge protection, over-heat protection
Recharge cycle More than 500 times
LED  Indicator Available 
ON/OFF Switch Available 
Key word 3.7v battery
Standard Charge Time Around 1hour
Dimension  as your requirement
Operating temperature -20 °C to 60 °C 
Charge temperature -0 °C to 45 °C
Storage temperature -20 °C to 45 °C
Operating humidity 5% to 90%,non-condensing
Applications Led light, spot light, flashlight, portable DVD, Speaker, power bank, clock, Medical device, industory equipment,traffic indicator light, cameras, DV, toys, GPS, Cameras, interphone, alarm system, Pos machine,communicate equipement, IC terminal, eletric lock, wireless dishes ordering set, etc.






1.long discharge platform

2.Low inner resistance

3.Long cycle life

4.low self-discharge

5.CE/RoHs/UL/SGS/MSDS certificate

6. Low price

7. Fast lead time



  • Communication equipment: Cordless phones, walkie-talkie
  • Information equipment: Laptop, PDA, portable fax machines, remote control
  • Audio-visual equipment: : Digital cameras, camcorders, DVD, VCD, MD, CD drive
  • Lamps: Emergency lights, solar lightsSearchlight, flashlight
  • Electronic toys: Remote control cars, remote control boats, aircraft model
  • Power Tools: An electric drill, planer, electric, electricity approved Please review the attached details of some of our LED / LCD TVs.
Packaging & Shipping:

(1) Samples checking: sending by Express ( DHL / UPS / FEDEX/ TNT ,by air)

(2) Bulk production: sending out by cargo shipping / air/freight / Express

(DHL/UPS/FedEx/TNT),or we can accept other shipping terms according to

your requirements.

(3) We are not responsible for any accidents, delays or other issues that are

caused by the shipping.

Our Services:

1.Professional lithium-ion battery manufacturer for 8 years experience,have own factory.
2.Strong R&d team to support.
3.BMS solution come from NSK and Recoh.
4.Offer OEM service for customer, small order also accepted.
5.Quick action & respond.
6.Competitive price and Best service before/during/after sales.









Contact Details
Shenzhen Delong Energy Technology Co.,LTD

Contact Person: Jessie

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