Panasonic ToughBook CF-27, ToughBook CF-28, ToughBook CF-33, and ToughBook CF-34 Car Charger (by Wasabi Power Recharge your laptop battery whether your laptop is on or off when attached to a 12V power supply. Meets or exceeds the OEM specification for the power needs of your laptop AC IN: 12V. DC OUT: 15-17V 90W Internal over temperature shutdown and Output short circuit shutdown. 2 Year Warranty