The Yaesu FT-5D is an expensive HRT. It comes with many nice features like APRS and C4FM.

You can charge it with the Rapid Desk Charger* or with the power adapter and Cable**. There is no other charging option. 

Bad if you are outside during a POTA activation.

I have found a USB-C to DC 12 V Adapter that works great for me. So I can charge the FT-5D with a PD USB Powerbank or car adapter.

There is another option from W0AEZ. A big 5 Ah battery for the FT-5D. It extends the running time by three times, but you need a packing mule

Here are the links to this useful stuff:

USB-C to DC 12 V Adapter on Amazon***

USB-C to DC 12 V Adapter on AliExpress***

Big 5 Ah battery for FT-5D

* What the heck is meaning of fast, Yaesu?
** Slower than the Rapid Desk Charger
*** Affiliate Links