... Europe and America Features1) Maintenance-free, Completely Sealed (all gases recycled internally)2) Excellent plates ... lead-acid batteries. TELONG mainly produced the following type-AGM general valve regulated lead acid battery(6v,12v,2v series),AGM deep cycle battery(6v,12v,2v series), GEL battery ... and with Good Chemical performance, for sealed lead acid battery,our case with special Structure to ...