Well in case anyone else runs into this, I have no idea what caused this or how I got out of it thinking it was dead at 20%. I tried deleting the stats, reflashed stock and then CM10 and back again, tried a different kernel, and still died at 20 and gave me the "low low battery logo".
I just took it into Gamestop where I got it and started the process for an exchange, so I have another one coming now. Go figure when I got home I plugged it back in, and now this time just like omnikai said instead of being at 20% it was at 0 when I turned it on. Been a while and now and seems to be charging normally so hopefully it will decharge fine.. either way really weird only problem I've had with mine so far
** Just wanted to edit and say its now decharging normally dont know what caused it to spazz out or fix it one of those ghost in the machine android moments
Nexus 7 16GB C8 4.4.4 / Unlocked /Rooted
Nexus 7 32GB v2 4.4.4 / Unlocked /Rooted
LTE Galaxy Nexus 32GB 4.4.4 / Unlocked /Rooted
LTE Galaxy SIII 32GB 4.4.4 CM11 / Unlocked /Rooted
LTE Galaxy Note 3 NC2 4.4.2 / Rooted
"Executing sudo command."