BOOKOO A9 4000A 12V Portable Car Battery Jump Starter – 20000mAh

The BOOKOO A9 4000A 12V Portable Car Battery Jump Starter is designed to provide powerful emergency starting assistance for a wide range of vehicles and equipment. With 4,000 amps of peak current and a 20,000mAh lithium battery rated at 74Wh, it is designed for gasoline engines up to 12.0L and diesel engines up to 10.0L. This compact jump starter is suitable for compatible cars, trucks, SUVs, motorcycles, ATVs, RVs, boats, tractors, lawn mowers, and other 12V vehicles, making it a practical addition to your emergency roadside kit.

More than a battery jump starter, the BOOKOO A9 also functions as a portable power bank with two USB output options, including a Quick Charge 3.0 port for compatible mobile devices. Its built-in 400-lumen, 5W LED flashlight features three modes: flashlight, strobe, and SOS, providing useful illumination during roadside repairs, camping, travel, and emergencies. The compact design measures approximately 8.6 x 5.5 x 3.5 inches and comes with a hard carrying case for convenient storage and transport.

Built for demanding conditions, the BOOKOO A9 features an IP66 water-resistance rating and is designed to operate in temperatures from -4°F to 149°F. Its smart jumper clamps incorporate multiple safety protections, including reverse-polarity, short-circuit, over-current, over-voltage, and overcharge protection. The package includes the A9 jump starter, smart jumper clamps, a USB-A-to-USB-C cable, a hard carrying case, and a user guide, along with a stated 24-month warranty and technical support.