TireTek TT-BCA-297 Car Battery Clip-On Cigarette Lighter Socket Adapter 12V Enjoy the convenience of converting your car battery into a 12V cigarette lighter power supply A super-handy battery to cigarette lighter adapter for cell phone/tablet chargers and power inverters The premium quality 12V battery car adapter is rated for up to 20 AMPS of power, the perfect addition to any road trip Featuring a robust female cigarette lighter socket attached to two battery clamps that can be easily attached to your vehicle battery