Custom 18650 Battery Packs

Our Vision: Provide world-class Lithium battery pack for customers world-widely
DNK Mission: to become an internationally renowned supplier of Rechargeable Lithium ion Battery.
Company values: integrity and pragmatic, responsibility

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At DNK Power, we provide services for  custom 18650 battery packs for all your industrial businesses and equipment applications, The equipment or system or let’s say our business includes the following batteries


A). Portable Equipment:
Post machine, handset, portable printer, data terminal;

B). Medical Instruments:
Ecg monitoring instrument, ultrasonic, breath machine, electrocardiograph,Ultrasound devices,Drug delivery systems,Patient monitors,Imaging systems: popular brands like Spectrum Imaging;ACD Systems;Orbital Atk;ECRM;Sirona;Nexus Publications,Ventilators,Defibrillators: Advanced Life Support (ALS), Automated External Defibrillators (AED), Implantable Cardioverter Defibrillators and Implantable Cardioverter Defibrillators (ICDs),Surgical tools: includes ENT Instruments Haemostatic Forceps Diagnostic Instruments Home Surgical Kit Anesthesia,Medical UPS Systems,Motorized wheelchairs

C). Industrial instrument and communication instrument:
Flaw detector, fusion splicer, optical power meter, gas detector

D). Consumer Electronics:
PDA, MID, PC, POS machine, electric tool, laptop. Ebike, emergency light power, data camera, DV, speaker, mp3, mp4 portable DVD and so on.

E). Portable Equipment:
POS, Portable printer, handset. Electric toy: RC car/ boat/helicopter etc.

Our intensive and rigid material selection, production, and QC testing ensure that all of the 18650 battery pack are assembled to meet or exceed customer expectations.

Since medical equipment are used to save lives, maintain health, so they will need high performance of 18650 battery packs to ensure the medical devices are working properly, a small failure would end in disaster. Our rich experiences in cooperation with some of the best industrial equipment brands help us to serve better also for you.

DNK 18650 battery cell

Rechargeable  18650 Battery Cell


18650 li-ion Battery Pack

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FAQ about 18650 battery packs

  • What is the range of voltage for the batteries?
  • 3.7v 7.4V 12V 24V 36V batteries, with pvc or plastic casing
  • Can i custom my 18650 battery packs?
  • Yes welcome to contact us. And welcome to Download our Battery Design Ebook for your review(2M,20pags)
  • What can I use a 18650 Battery for?
  • 18650 batteries are widely used in industrial devices medical businesses and equipment and Small UPS Systems
  • How long will DNK 18650 battery packs Last?
  • That depends on many factors. In case there is no abuse, the DNK batteries are expected to last 2 to 3 years. Under ideal usage and storage conditions, we expect 4 to 6 years.
  • Why Your batteries are a little cheaper then your competitor?
  • All of our custom 18650 batteries are made and assembled at our own factory, and there is no markup –you are dealing with factory. The other reason is we are producing in large volume,and thus can buy cheap material in some way, by passing the value to our customers, we want to work closely with you to get more market.

Chinese Cylindrical Battery Cell List

18650E15003.7≤18.1≤65.140.5 5.55
18650E17003.7≤18.1≤65.341.2 6.3
26650E34003.7≤26.1≤65.387.0 12.6
26650E38003.7≤26.7≤65.390.0 14
26650P24003.7≤26.1≤65.382.0 8.88
18650C2222003.7≤18.4≤65.046.0 8.14
18650C2626003.7≤18.4≤65.046.0 9.6
18650C2828003.7≤18.4≤65.049.0 10.36
18650C3030003.7≤18.4≤65.050.0 11.1
26650C4040003.7≤26.2≤65.286.0 14.8
26650C5050003.7≤26.2≤65.286.0 18.5
26650C5555003.7≤26.2≤65.288.0 20.35

Samsung 18650 Battery Cell(Consumer Devices)

Cell Model Type Thick/Diameter(mm) Height(mm) Capacity(mAh) Nominal Voltage(V) Energy(Wh) PDF Datasheet
ICR18650-22F Cylindrical 18 65 2,200 3.6 7.92
ICR18650-26H Cylindrical 18 65 2,600 3.63 9.44
ICR18650-30A Cylindrical 18 65 2,950 3.78 11.15
INR18650-20R Cylindrical 18 65 2,000 3.6 7.2
ICR18650-28A Cylindrical 18 65 2,800 3.75 10.5
ICR18650-32A Cylindrical 18 65 3,200 3.75 12

Samsung 18650 Battery Cell(High Drain Series)

Cell ModelTypeThickness/
Max Continuous Discharge Current(A)PDF Download
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Samsung 3200mah battery cell

Samsung ICR 18650 32A Battery Cell

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18650 3000mah battery cell 5-opt

Samsung ICR18650-30Q Cell

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Samsung INR18650-35E Cell

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Samsung ICR18650-30A Cell

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Samsung ICR18650-22P Cell

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Samsung ICR18650-22E Cell

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Samsung ICR18650-22F Cell

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Samsung ICR18650-26F Cell

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LG 18650 Battery Cell

Samsung 3200mah battery cell
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18650 3400mah battery cell-opt
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18650 3000mah battery cell 5-opt
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ebike battery pack 36v 10ah 4-opt
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Aggregate Rating
4.5 based on 63 votes
Brand Name
Product Name
18650 Battery Pack
USD 2-15
Product Availability
Available in Stock