Frys has this
CyberPower 150 Watts Mobile Power Inverter for $15 in addition, there is a
$15 Rebate valid from 8/21 through 8/27 making the total $0 AR. Pay for shipping or choose instore pickup to save on shipping charges.
Price = $15 - $15 Rebate = Free AR + shipping or Free instore pickup
Built-in Surge Protection ? Safely protect your electronics against power fluctuations from vehicle startup and shutdown.
Automatic-Shutdown ? The device will automatically turn itself off to protect your battery from draining.
180 degree Swivel Head ? The cigarette lighter adapter is designed for universal placement in hard-to-reach areas.
Power/Surge LED ? Allows you to visually indicate the inverter's status.
CyberPower Warranty - CyberPower offers an unconditional 2-year warranty with this product -- No questions asked. CyberPower also has a #1 rated technical support that will assist you with product, installation, or warranty concerns --- Free of Charge.
Detailed Description
The ACMobile 150BI Inverter converts 12v DC automobile power to standard 120v AC home power - up to 150 watts. Simply plug the inverter into a 12v DC outlet (cigarette lighter outlet) and you're ready to go. The convenient 180-degree swivel head is designed to fit in all universal cigarette lighter plugs. It is equipped one 3-prong outlet and has built-in automatic shutdown to protect your vehicle's battery. Full-time surge protection guards against power fluctuations from vehicle startup and shutdown, and its compact design is made to fit in tight areas. It's the perfect device to power all your mobile/consumer electronics, small appliances, emergency equipment, and portable tools.
Input
Voltage 10.8Vdc - 15.8Vdc
Current 12A max
Plug Type NEMA 5-15P
Output
Watts (continuous) 140
Watts (peak) 150
Watts (surge) 200
On Battery Voltage 120Vac
On Battery Frequency 60Hz
Outlet Type NEMA 5-15R
Warranty
Product Warranty 2 Years Limited
CyberPower 150 Watts Mobile Power Inverter $0 AR @ Frys 
