Is It Possible to Power a Shaver Directly with a Power Bank Instead of Using Its Battery?

It really depends on the voltage your shaver needs compared to a standard 5V USB output. You might be able to set something up with a small circuit, especially if the battery is something common like an 18650. Just keep in mind that these shavers are often designed to be waterproof, making the disassembly quite tricky and potentially irreversible.

There’s almost always a way to bypass the battery, but figuring out the exact method can be a bit challenging. Just remember, you’ll need to match the required voltage and amperage with your power source, and you'll likely need to check what the battery was originally providing.

Some rechargeable devices allow this kind of modification, while others don’t. Since we're not certain about your specific shaver model, why not give it a shot and see if it works? Just be cautious!