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DG (Deep Cycle GEL) series is designed for frequent cyclic charge and discharge applications under extreme enviroments. By using strong grids,Website:http://www.chengyupower-cn.com, high purity lead and patented Gel electrolyte, DG series offers excellent recovery after deep discharge under frequent cyclic discharge, and can deliver 400 cycles at 100% DOD. Suitable for solar, CATV, marine, RV and deep discharge UPS etc..