Genuine 42Wh 1V1XF Battery For DELL Precision 3540 Latitude 5400 5500 7VTMNPULLED FROM WORKING ENVIRONMENTBATTERY IS USED AND TESTED TO HOLD A CHARGE (NO WARRANTY ON BATTERY LIFE)PLEASE NOTE: RIBBON SHOWN IN PICTURE IS INCLUDED (BUT THIS RIBBON WAS PULLED FROM A DELL LATITUDE 5400, WE CANNOT GUARANTEE RIBBON WILL WORK WITH OTHER MODELS), IT IS BEING INCLUDED AS A BONUS WITH THE BATTERYSOME WEAR AND TEAR ON BATTERY FROM USEMOST OF THESE BATTERIES SHOW AS "EXCELLENT" HEALTH IN PREBOOT SYSTEM CHECK TEST (SEE PICTURE IN LISTING)