Website PowerXtreme PowerXtreme is a brand name of Emergoplus. In addition to the PowerXtreme batteries and shunting systems, they also sell other accessories under various names. The company is based in Zeeland. It is relatively young active in this sector, but there are several people working in the caravan sector for years. The PowerXtreme batteries are extremely suitable to provide a caravan mover with energy. The energy release is high and thus the mover functions audibly better. These lithium batteries have a high energy density and are therefore much lighter with an equal total energy yield than standard batteries. These lithium batteries have a BMS (Battery Management System) to optimally charge and use the battery.