Canon PowerShot G9 PowerShot G9 Camera User Guide - Page 237

4 Press and hold the DC Coupler cable cover using the cable, then close the memory card slot/battery cover. • Always disconnect the compact power adapter from the power supply after use. Appendix 235 DC Coupler Cable Cover Using the Car Battery Charger CBC-NB2 Car Battery Charger CBC-NB2 (sold separately) can be used to charge battery packs from an automobile's cigarette lighter socket. Always ensure that the automobile's engine is running when you use the car battery charger. Use of it with the engine off may flatten the battery. Always unplug the car battery charger before turning off the engine. z The battery will stop charging whenever you turn the engine off, so be sure to unplug the car battery cable from the cigarette lighter socket. z Wait until the engine is running again to plug the car battery cable into the cigarette lighter socket. z The car battery charger can only be used in a negative ground car. It cannot be used in a positive ground car. 1 With the engine running, plug the car battery cable into the cigarette lighter socket. To the cigarette lighter socket