Lenovo’s servers also utilize 80+ Titanium Power Supply Units (PSUs), Central Processing Units (CPUs) P-state cooperative (voltage/frequency) control, CPU Voltage Regulator Device (VRD) auto-tuning ...
Take the Bluetti X20, a power bank built to power laptops and other high-capacity devices. Sure, you can use it to charge your smartphone or earbuds, but that would be overkill.