what portable power supply can power a laptop
If you want to power or charge a small, AC-based device such as a laptop when power outlets are out of reach, you should get the ChargeTech Portable Power Outlet (27 Ah). Itâs essentially the same thing as a USB-only battery pack, but with higher capacity and an AC outlet.
Features: Power Station and Laptop Charger, Capacity: Built-in 16,500mAh Power Bank with (12V / 16V / 19V) DC output, it features a key switch to choose different voltages, LED indicator showing the status, 8-in-1 laptop adapters fitting for various brands of laptops.