Bespoke Designed ATEX and NiMH Batteries Manufactured and Assembled by UK Experts, PMBL. PMBL is a UK based Bespoke, Custom Battery Pack Design, Manufacturer and Assembly company that has delivered ATEX and NiMH Battery Technology Solutions to many businesses and provided the optimum battery design systems for each of their specific, bespoke business or product requirements. As a technology and design focused, customer oriented, battery pack manufacturer, PMBL are proud of their ability to provide an industry leading comprehensive battery technology design, procurement and manufacturing process for a wide range of battery applications.