GEM I GzV & GzS Seriesbatteries are developed for renewable energy and power reserve system, adopt Tubular plate technology, assembled by using GRAND ENERGY selected tubular positive plates which are particularly designed for GzV & GzS Series. The batteries are perfectly suitable for Solar PV and Wind power systems. GEM I GzV & GzS Seriesbatteries are premium quality in reliability for power storage designed with 20 years float life service.