For about a week now my battery keeps falling out. I've tried to mess with the battery locks to prevent it, but that...

You can try to toggle with the connection in the charging port between the Acer and the charger. The charger might be getting old and that could result in a short in the connection. If that does not work, you may want to try possibly plugging the charger into a different outlet to see if it's not the charger. If the two choices don't work, you may need to acquire a new charger for your device.

You may have a function turned on that isn't supposed to be. This can be fixed by going to the pc settings>Ease of Access>Keyboard and uncheck filter keys. If this does not help, it might be an internal problem with the keyboard connection. That may require a new keyboard.