This is a new DC car power adapter / charger designed not only to supply power to Dell Latitude D800 D810 D820, but also to charge Dell Latitude D800 D810 D820 battery. 24 months replacement warranty. Fast shipping from NJ!
Helpful hints: To calibrate the battery,you should fully discharge,fully charge,it
can increase the length of the battery. The voltage should close or the same to the voltage in the listing. Part Number (P/N): 310 9122,310 9123,312 0393,312 0394,312 0401,312 ...
High capacity battery certified by CE and RoHS, This battery
was tested and proven to match and/or exceed original specifications of DELL products. Fit Machine Models:Dell Latitude D531 D820