Custom Lithium Battery Packs Built to Exact Specifications
APEX Mobile Power (AMP) is a full-stack design and manufacturing partner, working with you to produce lithium battery packs built to the exact specifications of your applications. With the means to provide integrated solutions for custom-made battery packs and chargers, we ensure the quality and certification of your design, enabling it to meet demanding standards across various industries and applications. We are more than a contract manufacturer; AMP is a long-term partner with the experience to deliver custom products with the power you need.
Why Choose AMP as Your Custom Battery Pack Manufacturer?
At AMP, we are a single-point partner that helps you develop battery products, including primary and secondary battery systems, from design to certification. Our US-based engineering and project management team provides technical support and oversight for every custom design, supplying OEMs with reliable, consistent solutions that are made to their exact requirements. With products manufactured in an ISO-certified, automated factory, packs and charges developed as an integrated system, and AMP managing the entire process through approvals, we provide high-quality custom battery packs for all chemistries, specializing in the following:
- Sealed Lead-Acid
- NiCad
- NiMH
- Li-Ion (Clyndrical, Square, Aluminum)
- Chemistry Variants of LiMO, LICO, LFP, LiNM, LiNCA, LiPo, LiNA
- Li-Poly
- Na-Ion
- LiFePO4
- Alklaine
How Your Custom Lithium Battery Pack is Designed and Manufactured
Providing Custom Battery Packs to Industry Leaders
We are an end-to-end battery pack manufacturer trusted by top companies to provide high-quality solutions tailored to exact requirements.








With the goal of supplying high-value solutions, we offer a long-term direct supplier relationship to our buyers. Our process focuses on strategic cooperation agreements to deliver the highest quality, price, and reliability in custom lithium battery packs to meet our clients' needs, rather than spot-buying on the open market.
Certification and Compliance of Our Custom Battery Pack Solutions
While some manufacturers leave regulatory approval coordination to the customer, AMP owns the approval process and ensures that your custom battery solution meets the requirements for certification and compliance. Our reliability and environmental laboratories can ensure the safe and dependable manufacturing of your products from cell import to battery module development, backed by industry certification standards that include:
- UN 38.3
- UL 2054
- IEC 62133
- UL 1642
- CE/RoHS
- Mil-Spec 810
- ATEX/IECEx/Intrinsically Safe (NEC, CEC, UL, FM, SGS)
- ISO Certifications: 9001, 13485, 14000, 45001
Applications of Custom Lithium Battery Packs
By holding industry certifications and ensuring manufacturing compliance, we are able to produce custom battery products for a wide range of industries and applications. AMP provides solutions with superior reliability, including batteries for extreme temperatures, to support the following, but not limited to, markets:
- Electric Mobility and Transportation
- Robotics
- Medical Equipment
- Renewable Energy Storage
- Industrial and Marine Systems
- Aerospace and Defense Drones
The AMP Battery Pack Manufacturing Service Process
Different applications require different battery architectures, which is why system-level design is critical. Lithium iron phosphate batteries are commonly used in:
- Energy storage systems (ESS)
- Backup and emergency power systems
- Industrial equipment and machinery
- Robotics and automation systems
- Electric mobility and material handling equipment
Contact Us to Get Started with Designing Your Custom Battery Pack Today
With over 100 years of combined US team experience, AMP is a custom battery pack manufacturer that has developed over 3,000 unique pack designs for demanding applications. Our US-based engineering team manages your project from concept to completion, integrating critical pack and charger designs as a singular system, not sourced separately, and implemented in later stages. Working in an ISO-certified automated factory, our custom battery process ensures consistent quality at production scale and is trusted by all top Tier-1 cell suppliers. To discuss your custom lithium battery pack, contact us or explore our products for additional solutions.
Ready to start your project? Contact us to get started or give us a call at 1 (855) 267-3674.

