This Dell Equivalent Latitude D420 Battery Is rated at 40Wh 11.1V and 3600mAh 8 cell to meet or exceed the original OEM Dell battery. This battery will replace the Dell Latitude D420 Battery and works with the following Laptops/Notebooks:Dell Latitude D420, Latitude D430, and the following battery Models:312-0443, 312-0444, 312-0445, 415-10365, 415-10366, 415-10367, 451-10365, 451-10366, CG386, FG422, FG442, FG447, FG451, GG386, GG421, GG428, HG181, HX348, JG166, JG168, JG172, JG176, JG181, JG768, JG917, KG046, KG126, NG011, NX626, PG043.
