Who wins?
15% vs 10%
10% wins 53% to 47%. 70 more put them in the same row. From Battery Percentages Tier List. Pick a side.
SoggyPossum on 15%: low power mode makes 15 last a surprisingly long time
SpicyRaccoon9409 on 10%: screen dims, everything slows, you start closing apps
Battery Percentages Tier List: the full ranking