What Is An Electric Battery? 9v battery cells hi res stock photography and images Alamy 7 of the Most Common Battery Types on the Market Today 616C First Battery. One New Aftermarket Replacement Metal Battery Door for Ford (New Holland) 2N, 8N, and 9N Tractors This aftermarket replacement battery door fits the classic Ford N Series tractors the 2N, 8N, and 9N. The door is stamped bare metal sheet metal and includes the handle, latch, and hinge. Because this part ships bare metal (not primed), it should be fitted to the tractor and verified for alignment before any painting or finishing work is done. Specifications Material: Bare metal (not primed fit before painting) Length: 15. 5" Width at rear: 10. 5" Width at front: 8" Includes: Handle, latch, and hinge Compatible Models Ford (New Holland) N Series Tractors: 2N, 8N, 9N Replaces Part Number(s): 9N16938C, 9N1 6938C, 9N16938C A New aftermarket replacement part not remanufactured, not used.