LG specs the battery as typical 3000, minimum 2940. I just checked CPU-Z on my Note 3 and it found the right battery capacity, so if it were my G3, I'd bring it in and ask for a battery that met specs. (The voltage seems a bit low too.)
The reading from cpuz is looking at other things, not directly at the battery.I downloaded the app just to see what it says for my ATT G3. I've got the Zerolemon 9000mah battery on my phone. The app says my battery is 3000mah...?
I just downloaded the App. My battery is at 34% at this time. It shows also 3000 mah for battery stats
Verizon G-3