Gp batteries greencell zinc chloride batteries gp gp gppcc13kc001 the gp greencell gp13g is a mercury free zinc chloride d cell that can be used in all domestic devices this reliable battery is best for devices that do not require much power it provides good value for price conscious customersapplications cd players radios torches toys game controllers fire alarms and clocks gp gppcc13kc001 zinc chloride cell d pack 2