COBRA CJI 150 JUMPSTARTER/ POWERPACK Instantly jump start vehicles 300 amps of jump start power. Heavy-duty cables transfer power more efficiently. Jump starter safety switch safely transfers power to the booster cables. Reverse polarity indicator. 100 watt/110V AC output operates household appliances. 12V DC power outlet for DC accessories & appliances. 5V USB port for charging cell phones, PDAs or power up consumer electronic devices. LED light for work light or emergencies. LED display indicates battery capacity & charge status.