9000A Car Battery Jump Starter with Air Inflator/Deflator Compressor

I tried using this and have the following issues: 1. The most common "issue" is a safety feature. Smart clamps won't detect a completely dead battery (0V) and won't send power—users think it's broken. 2. Despite "9000A" peak rating, struggles with large diesel engines if the unit isn't at least 80% charged. 3. Jumper cables are short. Hard to reach terminals deep in engine bays. 4. Compressor generates significant heat. Inflating multiple tyres without cooldown may cause auto shut-off or damage. 5. Digital gauge (#7) can be off by 2–3 PSI compared to manual gauge. 6. Inflation speed slower than expected for SUV/truck tyres vs garage compressor. 7. No AC adapter—charges via Type-C (#11). Takes 6–10 hours depending on USB block.