Based on 18-year experience in research and development, we succeeded in developing NPS batteries mainly suitable for Solar / Wind power or Photovoltaic system and then we called it as PV batteries too. In fact, use of AGM batteries in deep cyclic applications is short sighted because the AGM batteries will fail prematurely indeed the AGM battery capacity will start to reduce from the day of installation. With the great help of Doctor Yoshida Masayoshi in Toyama University in Japan, we combine gel technologies with deep cycle technologies by putting some special elements in lead alloy and some additive in electrolyte to get much more longer cycle life for NPS batteries.