Overview
- Chinese C3 regulatory filings published Monday list battery model IDs and capacities that match earlier leaks and point to roughly 4,056mAh/4,288mAh for the Pro and about 5,391mAh/5,567mAh for the Pro Max.
- The documents include specific battery part numbers (S2232/S2233 and 2235L/2236L) and rated energy and voltage figures up to about 21.751Wh at 4.520V, which strengthen the credibility of prior supply‑chain reports.
- Reported capacity differences between China and U.S. units are explained by regional SIM designs because U.S. eSIM‑only models free internal space that can be used for slightly larger cells.
- Industry observers caution that larger cells alone do not guarantee longer battery life and say actual runtime will hinge on the A20/A20 Pro chip efficiency, display and modem choices, and Apple’s software tuning.
- The devices are expected to be announced at Apple’s September event, but suppliers and yield issues will affect final specs and availability so the filings should be read as corroborating leaks rather than confirmed consumer specs.