The Xiaomi Portable Electric Air Compressor 2 costs less than 32 euros at AliExpress. This device works on battery: a single charge can reinflate up to 10 car tires.
It then recharges via USB: be careful, the charging cable is not provided. It's clearly an essential device to keep in your garage or in the trunk of your car. The best deals from AliExpress: Xiaomi Redmi Note 13 Pro + smartphone at €409.87 instead of €585.53.