1 Listings - Batteries and Power Systems in United Kingdom Click here to create a listing Click on the Batteries and Power Systems listings below to get contact details for each business including phone number, website details, social media links, opening hours, photos and more. DMS technologies Located In Romsey, Hampshire Tel: 44 (0) 1794 525400 Battery Suppier, Design & Manufacture of Bespoke Battery Systems, 12V & 24V Engine Start Powerpacks