Our All-New Weego 44s lithium jump starter delivers 440 cranking amps in an ultra-compact design weighing less than one pound. No bigger than most cell phones, it can jump start boats, motorcycles and almost all the cars and trucks on the road today. Weego 44s delivers the very latest in power management and is rated for 7-liter gas engines and 3.5-liter diesel engines. The number one issue with most failed jump start attempts is that a lithium jump starter cannot detect a low voltage lead acid battery. With our advanced voltage detection, the 44s can recognize a lead acid battery as low as 0.5 volts and will provide voltage support (known as pre-conditioning) to raise and maintain the voltage of your vehicle's battery to a level safe for jump starting. If your lead acid battery is completely dead (between 0 - 0.5 volts), and Weego 44s cannot detect your battery, you can use the bypass button to complete the jump start. Perfect for: cars, boats, trucks, SUVs and more!

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov