Battery For Lg V10
BATTERY Removable Li-Ion 3000 mAh battery
Stand-by Up to 150 h (2G) / Up to 150 h (3G)
Talk time Up to 22 h (2G) / Up to 18 h (3G)
The LG G2 with its 5.2" screen had a 3,000mAh battery, then the G3 with a 5.5" screen, the G4 and now the LG V10. The V10 is slightly thinner than the G2 (8.6mm vs. 8.9mm), but not by much. What we're getting at is that the internal volume has gone up while the battery capacity hasn't changed in over two years now.
LG rates the V10's talk time at 18 hours and about as much, close to 17 hours. Even the G2 did better than this. The web browsing and video playback times are average. Nothing spectacular when you consider the screen was at a modest 100 nits (well below average).
As a result the endurance rating works out to 56 hours, just over two full days. The standby power draw is fairly low, but that's with the second screen off. Turning it on brings the LG V10 down to 46 hours endurance rating. The impact is fairly small, with or without the second screen you'll get two days of moderate usage and one day of heavier usage.