Chemistry Options

Li-Polymer Battery Pack
3.7V Lithium ion Battery Pack
7.4V Lithium ion Battery Pack
12V Lithium ion Battery Pack
24V Lithium ion Battery Pack
Lithium-polymer cells are offered in many sizes and are available in high-energy as well as high-rate configurations. Offered in prismatic sizes from small to large format, lithium-polymer cells make a great choice for small electronic devices and high-power lightweight drones.
Lithium Rechargeable Battery Pack
3.7V Lithium Rechargeable Battery Pack
7.4V Lithium Rechargeable Battery Pack
12V Lithium Rechargeable Battery Pack
14.8V Lithium Rechargeable Battery Pack
22V Lithium Rechargeable Battery Pack
24V Lithium Rechargeable Battery Pack
Lithium-Ion Rechargeable Battery(available in both cylindrical and prismatic formats) are offered in designs that can provide high-energy density or high-power options to meet the various demands of OEM products such as medical devices, power tools and drones.


Ni-MH Rechargeable Battery Pack
3.7V Ni-MH Rechargeable Battery Pack
7.4V Ni-MH Rechargeable Battery Pack
12V Ni-MH Rechargeable Battery Pack
14.8V Ni-MH Rechargeable Battery Pack
22V Ni-MH Rechargeable Battery Pack
24V Ni-MH  Rechargeable Battery Pack

PKCELL manufactures custom nickel metal hydride battery packs and assemblies. Our battery design team uses the latest mechanical and electronic design tools to optimize the reliability, safety and manufacturability of your custom battery packs. This gives you the most cost effective and dependable nickel metal hydride battery pack solution for your specific needs. NiMh cells and batteries are generally lower cost than lithium rechargeable cells and batteries and are not as heavily regulated.

Custom Nickel Metal Hydride Battery Packs & Assemblies
Nickel Metal Hydride (NiMH) cells have gained in popularity since the late 1980s. Steady increases in performance and minimal transport regulations have made this chemistry an excellent choice for small, lightweight, portable, and handheld battery packs & battery assemblies applications.



Ni-Cd Rechargeable Battery Pack
3.7V Ni-Cd Rechargeable Battery Pack
7.4V Ni-Cd Rechargeable Battery Pack
12V Ni-Cd Rechargeable Battery Pack
14.8V Ni-Cd Rechargeable Battery Pack
22V Ni-Cd Rechargeable Battery Pack
24V Ni-Cd Rechargeable Battery Pack

Custom Nickel Cadmium Battery Packs & Assemblies
Nickel Cadmium (NiCd) is a well-established chemistry for custom battery packs & assemblies. Although newer battery chemistries have taken the spotlight in recent years, Nickel Cadmium still remains a viable chemistry today for some applications.


Nickel Cadmium Battery Characteristics
Nickel Cadmium batteries have several advantages over other battery chemistries in use today.

  • Nickel Cadmiums can take a fast charge, some in as little as 15 minutes and can take a charge at lower temperatures.
  • Maintained properly, Nickel Cadmiums are capable of thousands of cycles.
  • Nickel Cadmiums can sustain heavy loads.


Ni-Zn Rechargeable Battery Pack
3.7V Ni-Zn Rechargeable Battery Pack
7.4V Ni-Zn Rechargeable Battery Pack
12V Ni-Zn Rechargeable Battery Pack
14.8V Ni-Zn Rechargeable Battery Pack
22V Ni-Zn Rechargeable Battery Pack
24V Ni-Zn  Rechargeable Battery Pack


Custom Battery Charger

Customized Battery Charging Solutions

we have the experience and expertise to develop and configure a battery charger that fits your needs.

Proper charging of a battery pack is essential to ensure safe and optimal operation of portable electronic devices. By optimizing both the battery pack and charger during the design phase, manufacturers can take into account all relevant considerations for their portable power source, including charge rate, accurate determination of full charge and charge termination.


Battery Charger Capabilities

From internal battery chargers, to our extensive array of off the shelf solutions and custom external chargers, our engineering team will work with you configure a battery charger to meet the specific and unique requirements of your battery pack.

  • Rapidly configured to your exact requirements
  • Compliant with UL, CSA and CE standards
  • Domestic and Asia Manufacturing
  • Proven solutions for SLA, NiCd, NiMH, Li-Ion, Li Metal
  • Custom and off-the shelf solutions

Rechargeable Battery Technologies

Nickel Cadmium Nickel Metal Hydride Lithium Ion Lithium Metal
Average Cell Voltage (V) 1.20 1.25 3.6 3.0
Energy Density (Wh/kg) 45 55 100 140
Energy Density (Wh/l) 150 180 225 300
Cost ($/Wh) 0.75 - 1.5 1.5 - 3.0 2.5 - 3.5 1.4 - 3.0
Memory Effect? Yes No No No
Self-Discharge (%/month) 25 20-25 8 1-2
Discharge Rate >10C <3C <2C <2C
Charge/Discharge Cycles 1000 800 1000 1000
Temperature Range (°C) –10 to +50 –10 to +50 –10 to +50 –30 to +55
Environmental Concerns Yes No No No


Battery Types And Considerations

The critical considerations in selecting the right battery are:

  • Rechargeable or non-rechargeable?
  • Nominal, minimum and maximum voltage?
  • Initial, average, and maximum discharge current?
  • Continuous or intermittent operation?
  • If intermittent, the amplitude and duration of minimum and peak current drains?
  • Required service life?
  • Operating-temperature range?
  • A worst-case analysis, including highest expected current at lowest expected temperature and permitted Voltage-rise time to minimum voltage?
  • Storage duration and condition?
Battery Chemistries to Consider:

Lithium Ion (Li-Ion) & Lithium Polymer: May have twice the energy density of NiCd, can be capable of high discharge currents, and relatively low self-discharge. Often used for medical, military, industrial, consumer electronics.

Lithium Iron Phosphate (LiFePO4): superior thermal and chemical stability, can handle higher temperatures without significant damage, higher rate discharge, longer cycle life, but lower voltage and energy density than other Li-ion chemistries. Often used for electronic vehicles, power tools, medical and military applications.

Nickel Cadmium (NiCd): fast charge, can take a charge at lower temperature, capable of thousands of cycles, competitively priced, limited size since they have been banned in some regions due to environmental concerns. Often used in medical and industrial equipment, test and measurement instruments, and other applications.

Nickel Metal Hydride (NiMH): No recycling issues, more capacity and no memory effect as NiCd, competitively priced, but can lose charge faster than NiCd. They are often used for small, lightweight, portable, and handheld battery packs.

Sealed Lead Acid (SLA):  Low initial cost, easy maintenance, low energy density, good charge retention, predictable discharge. Often used for medical devices, uninterruptable power supplies, and emergency lighting.

Lithium Primary: Non–Rechargeable: Highest energy unit per weight, mostly limited for low drain applications, can operate in a wide temperature range. Often used for photographic and electronic applications, security transmitters, smoke alarms, communications equipment, utility meters, scientific instruments, and other applications.

Alkaline: Non–Rechargeable: Better performance at low temperatures than Carbon Zinc/Zinc Chloride, low cost, longer shelf life and leakage resistance than carbon zinc. Often used for toys, flashlights and radios.

Carbon Zinc/Zinc Chloride: Non–Rechargeable: Low cost, limited shelf life, susceptible to leakage. Often used in radios, toys, and flashlights.

Silver Oxide: Non–Rechargeable: Small size, stable discharge voltage, good shelf life, able to operate over a wide temperature range. Often used for calculators and watches.

Zinc-Air: Non–Rechargeable: Small size, large capacity, quick start-up, stable voltage, light weight. Often used for pagers, hearing aids, and other small medical equipment.

Contact Us For A Full List Of Available Batteries!

Tailored-Made Your Own Battery Packs
Talk To A Pkcell Battery Expert About Your Business's Need



  • Adress:7th Floor,block B, Yicheng Huanzhi center, Renmin Road, Longhua District, Shenzhen,China
  • Phone:86-755- 86670651