I had to check the charging as I never turn off the phone. Nope, it doesn't seem to be charging when off.Bit worried to upgrade to the latest as some people reported random reboots... or not being able to charge battery when the phone is off...
If it's off and you connect the charger, it turns on. If you connect the charger when the phone is on then you turn it off, it doesn't seem to be charging as the charging animation doesn't appear neither the LED lits.
Putting it to airplane mode solves the problem if you don't want to be online.
No reboots for me, but I have to admit I really use the phone to what a phone is for. Talking, sending text, Viber, Messenger, FB and some SW Collection.. so no nonstop playing for me.
Some more battery info with my overclocked settings. Yesterday I had 20 hrs and a bit on the battery, but I talked for a bit more than 3hrs, used the GPS for 4hrs (not a navigator program, but the GPS was turned on)... so SlimKat is fine on the battery.
A couple of things I forgot:
GPS... it needs about 4-5 minutes to fix the position, but it's 2/3 of the time for me compared to the JB.
TJKV, just found a bug. I have a SIM code and if I don't put the SIM pin in as it appears on the screen and it goes off... it never comes back. So need to take the battery out and reboot.