4-IN-1 Car Jump Starter with Air Compressor Peak 5000A Auto Battery Booster 150PSI Air Pump Portable Power Bank Tire Inflator

With extended use, the device maintains its performance — buyers who tested it on multiple tires report that the battery remains sufficiently charged. The device works in cold weather too (tested at −24 °C). All four functions — jump starter, compressor, power bank, and light — operate without issues. Some users noticed an unpleasant plastic smell when unpacking, which fades over time.

Complaints are minimal. One buyer with 12000 mAh capacity reported the battery drained after inflating three half-full tires, though he considered this acceptable given the price. Another complained about the tire valve quality. Most reviews come from buyers who tested only one or two functions, so a comprehensive long-term test of all features is lacking.