rlw6534
Headphoneus Supremus
At this stage, the V30 battery is holding a very good charge using it either with headphones (both cable via Fidelio X2HR and BT with Sony M3) or connected to my home stereo or TV soundbar. I'd say with 6-7 hours use, it doesn't get too low, maybe to 20%. I charge it every night. So don't have those specific measurements, but for a used phone, I am very happy with battery life for my uses.
The great thing about my V30 is the standby battery life. It lasts for several days even with wifi on. I don't use a sim so IDK how that affects things...