Apple’s iPhone 18 Pro Max is shown charging much faster than earlier iPhone Pro models, with reported time-to-charge improvements confirmed in outlet coverage of third-party testing. Ice Universe highlights Apple’s own claims that the phone reaches 50% in about 15 minutes, alongside full-charge timing seen in testing.
MacRumors reports that a video test indicates the iPhone 18 Pro Max can reach 0% to 100% in about 55 minutes when used with a suitable charger, compared with roughly 81 minutes for the iPhone 17 Pro Max. The article also notes charging slows later in the session, even if the screen shows 100%, because the phone continues a low-power trickle after reaching the stated “full” level. GSMArena similarly cites 0–50% in 15 minutes and describes measured charge behavior over time.
Both sources frame the results as dependent on using an appropriate USB-C power adapter, with Apple specifying support for higher-watt chargers and AVS for peak speeds. Peak charging rates are also discussed, with the iPhone 18 Pro Max showing higher early-session power than the prior generation in the referenced tests.