House of Batteries designs & assembles Custom Battery Solutions in every chemistry for all electronic applications with a focus on Lithium battery packs. Design & Assembly of all Battery Chemistries Large Engineering Dept. & Test Lab Battery Assembly in the US, Mexico & Asia 2 Million Batteries in Stock 36,000 S.F. State of the Art Facility UN, UL, DOT Testing & Certification Certified Woman Owned Company ITAR Registered ISO 9001 Certified. Custom Power Solutions - PORTABLE ENERGY FROM DESIGN TO DELIVERY SINCE 1965Whether you're looking for custom battery pack design,rechargeable battery assemblies,or lithium battery and battery pack expertise,House of Batteries has the experience,expertise,and resources to be your battery assembly and battery pack manufacturer.