You’re right-there are indeed power banks designed to be recharged both from a 220V wall socket and via USB, effectively combining the functions of a power bank and a wall charger into one compact device. This kind of hybrid product can definitely lighten your load by replacing carrying both a power bank and a separate charger.
For example, the
myCharge Power + Plug 20K Charger features built-in wall prongs so you can recharge it directly from any wall outlet, and it also has a USB-C port for charging via USB. It can charge two devices simultaneously and offers a large 20,000mAh capacity, providing extended battery life for smartphones and tablets
https://mycharge.com/products/power-and-plug-20k-charger-w-built-in-cable-plug
Similarly, the
Mophie Powerstation Plus Ultra 10K includes integrated folding wall prongs and USB-C and Lightning cables, allowing you to recharge the power bank from a wall socket or USB-C port. It supports fast charging and can charge multiple devices at once, making it very versatile for on-the-go use.
Powerstation Plus Ultra is the most convenient way to charge your devices on-the-go. Get fast charging speed with the 30W USB-C port. Powerstation Plus Ultra also has integrated USB-C and Lightning cables, so you can just plug your devices into the powerstation and start charging. Get a 50%...
Another example is the
ENEGON 15,000mAh power bank with AC outlet, which has a built-in foldable wall plug and USB-C input. It supports fast charging both ways and can charge multiple devices simultaneously. This model emphasizes being truly cable-free and convenient for travel.
Portable Phone Charger with Built in Wall Plug and Cables, Small Fast Charging Power Battery Bank with Built in Wall Plug and Cables, 3 Outputs & Dual Inputs, USB-C PD&Qc 3.0. for Android & iPhone
Even Belkin offers a
Hybrid Wall Charger 25W + Power Bank 5K, a compact device that works as a power bank on the go and a USB-C PD wall charger when plugged into a power outlet.
Compact hybrid charger: 5K power bank & 25W USB-C PD wall charger with USB-C & USB-A ports. Enjoy safe, high-speed charging for USB and PD-enabled devices.
Your idea of a single device that combines these functions is already being realized by several products on the market, but there is always room for innovation-such as improving capacity, reducing size, or adding more charging ports. It would be great to hear more about your expectations and desired features for such a product to better understand what improvements or new ideas could make it even better.
If you want, feel free to share what you hope such a hybrid power bank could offer beyond what’s currently available!