Custom battery packs


With more than 40 years of experience, Energy Sales has been serving customers in a wide range of industries from medical to industrial and consumer applications, oceanography, aeronautics,  instrumentation, and aerospace, defense — delivering high quality cells and batteries used in the manufacturing of custom packs. The expertise and rigorous testing methodology we have acquired allow us to constantly monitor the quality and performance of our products as well as conform to industry standards and certifications to consistently deliver reliable battery cells of the right chemistry for the job  from our quality suppliers.

Our experience includes all types of chemistries:

  • Lithium-ion
  • Lithium-polymer
  • Lithium (primary)
    • Thionyl Chloride
    • Sulfur Dioxide
    • Lithium Metal
  • Nickel-metal hydride
  • Nickel-Cadmium
  • Alkaline
  • Sealed Lead-acid


Standards & Certifications



  • Energy Sales rigorous testing methodology
  • Certified products compliant with regulatory and saftety requirements
  • Federal Aviation Regulation (FAA) requirements
  • ROHS, UL certification and high reliability
  • Certificate of Conformance (COC)
  • UL94 V-0 standard for flammability safety or better
  • Performance over thousands of charge/discharge cycles.
  • Consistent, reliable, top performance from the highest quality suppliers.
  • Tested and proven design
  • Vibration proof
  • Defect rate at near zero level
  • Freshness of battery cells (ensured by date code)

In addition to the distribution of cells, batteries and related products, Energy Sales specializes in manufacturing high quality battery packs made to customer’s specifications.

Energy Sales teams up with your engineering team to design the configuration you need to meet your requirements for power, amp-hour capacity, physical size, weight, and other considerations.

We support our customers with:

  • guidance on chemistry options
  • packaging and Hazardous Materials (HazMat) shipping
  • application engineering assistance
  • custom assembly design
  • production planning
  • warehousing
  • timely delivering
  • ultrasonic welding
  • quick turn-around on assemblies