... the Red battery clamp to the battery Positive (+) and Black clamp to the battery Negative (-) and insert the plug into the EPOWER, finally ... position. Once the vehicle is started, please disconnect the plug and remove the battery clamps within 30s. Product Highlights: The ... 1000 times. Support 12V vehicle for emergency start, portable illumination and various mobile phone, PSP, MP3/MP4 Pocket PC PDA, ...