The ESORO Power Pack ES-PP-800-65-1-2 is an energy storage system composed of two parallel batteries and one technical box. This strong and high capacity power supply provides 230 VAC and 620 VDC. The extremely robust construction and its high protection class against water and dust let the system operate in harsh environment too. An integrated heating and cooling allows using the Power Pack in a wide temperature range. The intelligent GSM communication module transfers the actual status and the position of the Power Pack to everywhere. In addition, warning messages are produced and sent automatically; if the system is in an error state or user defined thresholds were exceeded. This energy storage system from ESORO is CE approved.