Amazon.com has a Xantrex Technologies 851-0400 X-Power 400 Power Inverter for $29.99 with Free Shipping. Allows you to run electric devices on cars cigarette lighter.
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- X-Power 400 inverters will surge to 600 watts and operate continuously at 300 watts n
- Automatic shutdown protection against overload, over temperature and low battery conditions n
- Two, three prong grounded AC outlets n
- Quiet operation n
- Automatically shuts down before the battery is completely drained, ensuring enough capacity is left to start your engine