Rick - everything that GPhotos backs up are visible in drive. They're sorted in a folder called Google Photos and then subfolders by year and month based on the date stored in the metadata on the pics. I have a 1970 folder also lol so that must be stuff that didn't have a date tag.
As for your ? battery, wtf. I know that being plugged in 24/7 can be hard on a battery but you don't leave it in there all the time do you?
Yaybo - sup! I'd try to help but it looks like Cao already found what you need.
Sent from my LG V20