"A handler is already registered for /org/freedesktop/UPower/devices/battery_hid_00o12oa1o68oa3o1b_battery"
So this seems to happen if you have a wireless mouse or keyboard, which powers down due to inactivity, and then gets repowered and it tries to register the same battery again.
The error message makes this quite clear:
"A handler is already registered for /org/freedeskto p/UPower/ devices/ battery_ hid_00o12oa1o68 oa3o1b_ battery"
So this seems to happen if you have a wireless mouse or keyboard, which powers down due to inactivity, and then gets repowered and it tries to register the same battery again.