Can I jump-start a commercial truck with the PowerSafe Jumper Cables?
Yes – provided it has a 12V electrical system. Connect the cables as outlined in the instructions and allow at least five minutes to charge the battery (or batteries) in the truck prior to starting it. If excessive current flows, the LED will blink red, indicating that insufficient time has elapsed to charge the vehicle’s battery (or batteries) prior to an attempted start, or that the battery (or batteries) are not accepting a charge.