Slide battery pack 18v 4.0ah lihd metabo 625368000, the metabo slide lihd lithium ion high density battery packs provide the ultimate performance and extremely long application with minimal temperature generation'. '.strtoupper('u')ltra m technology delivers intelligent battery management for long lasting battery packs'. '.strtoupper('e')lectronic single cell protection escp, protects each and every battery cell from discharging completely and from overcharging, for extremely long battery life'. '.strtoupper('p')atented air cooled charging technology, the battery pack is cooled by a fan in the charger for shorter charging time and longer service life'. '.strtoupper('c')ompatible with all metabo 18v machines and chargers that accept slide on type batteries.1 x metabo slide battery pack 18v 5.5ah lihd'. '.strtoupper('m')etabo 625368000 slide battery pack 18v 5.5ah lihd