HTC Desire 626 Startup and Charging Problem

Hello!

My HTC Desire 626 has run completely out of charge. It can charge, but barely. Now, when I can get it to charge, it automatically attempts to start, which it can't charge during. So, it immediately dies. It immediately, in about a second of charging, attempts to start again, and then immediately dies again after just flashing the startup screen.

I can't turn it on or reset it because it doesn't have power.

I can't charge it because it tries to start with any power and fails, and won't charge while starting up.

I'm stumped. Any help would be appreciated. Thank you!

Evan