Thank you, seventy one, for your helpful suggestions and advice. With the Magic Mouse I have on a macOS High Sierra version 10.13.4 (17E199) the Magic Mouse 2 just stopped responding. No notices or warning like with earlier mice and other keyboards. At first I thought it was the Bluetooth signal but after some hunting it came up that the mouse battery was dead. This was a first for me.
My Magic Mouse 2 is at 89% in a little over an hour. I bought a plug in Apple mouse just for those occasions when Bluetooth signals give out. Fortunately the plug in mouse worked for the dead battery on the Magic Mouse 2 as well. I will admit I am very unorganized and lose track of time and the accessories at my disposal. I survive and those times make for great adventures in learning for me.
I did send in feedback as you suggested to Apple about this issue.
I noitced that there was some griping on other forums about the recharge/plug in portal being on the bottom of the Magic Mouse. I do admit is does stop the use of the Magic Mouse while it is recharging. I do not like to complain, but rather would prefer to wait for solutions from Apple or other experts like yourself. I'm sure they are aware of the placement and there may be a reason for why it is placed there. I read of one opinion that it is design over operation.
Please keep your expertise in the forums. Thank you.