About - A choice of two types of replacement battery packs for Easyprox compact, Easyprox compact keypad and Easyprox nano. Sales code 746-001 for the standard pack or 746-003 for the higher capacity pack. We recommend 746-003 for use with Easyprox nano and for sites with busy access points or a particularly high number of users. Installation - Remove the unit from the door. Remove the access plate to reveal the battery pack. Replace the battery pack and refit the access plate. Operation - The unit will continue to operate as usual.