The XPeng P7 primarily uses high-energy-density ternary lithium batteries or lithium iron phosphate batteries (depending on the variant). For buyers considering the XPeng P7, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.