Deep Cycle Gel Batteries DG (Deep Cycle GEL) series is designed for frequent cyclic charge anddischarge applications under extreme enviroments. By using strong grids,high purity lead and patented Gel electrolyte, XTG series offers excellentrecovery after deep discharge under frequent cyclic discharge, and candeliver 400 cycles at 100% DOD. Suitable for solar, CATV, marine, RV anddeep discharge UPS etc..