Razer deathadder v3 pro battery problem

Synapse showed this morning that the mouse is 40 percent charged. When I went to Synapse in the evening, it started showing 100 percent. But I didn't charge it. At first I thought the problem was in the software, but it's not. When I connected the cable to the mouse, the indicator light turned green. This meant that the mouse was fully charged. And from that moment on, she was stuck at 100 percent.