The Vertiv Liebert APS Battery Charger Module (APSCHRGRMOD) is a 10A Charger Module for Liebert APS UPS. It works in parallel with the chargers in the APS FlexPower assemblies to reduce charging times. It allows for the Liebert APS UPS to support 3:1 battery module to power module ratios. The Liebert APS 10A Battery Charger Module is user replaceable and hot-swappable. Its simplified setup allows easy installation. It is fault tolerant so you can add and remove module without disruptions in power. The charger module has an independent control function and maintains real-time communication with the system and the battery modules to ensure stable charging and fault protection. The charger module may be added or replaced online with no interruption or danger to the user, connected battery system or connected equipment.