Although he did not mention it during the presentation of the new iPhone 13 range, Apple's iPhone 13 Pro Max supports, temporarily, a higher power load than its predecessor, allowing the device to reach full battery more quickly.
Based on testing by ChargerLAB, iPhone 13 Pro Max can receive up to 27W power when using a charger of equal or higher power. The charging speed of the entire iPhone 12 range was limited to 22W.
iPhone 13 Pro Max uses a 30W PD charger, which can maintain 26W power for about 27 minutes, and it takes 86 minutes to fully charge. pic.twitter.com/qN67104Sem
- DuanRui (@ duanrui1205) September 25, 2021
However, the iPhone 13 Pro Max does not use 27W of power during the entire charging process. According to Twitter user DuanRui, the iPhone takes advantage of the 27 W load for about 27 minutes. In the tests you have performed, the iPhone 13 Pro Max took a total of 86 minutes to complete a 100% charge.
Apple Insider has also carried out this type of tests and claims that the 27W of power they are only used when the battery is between 10% and 40%. When it passes 40%, the charging power is reduced to 22-23W.
According to DuanRui, the highest loading speeds appear to be limited to the iPhone 13 Pro Max model, since the tests carried out on the iPhone 13 Pro this does not exceed 20W at any time.
If you have an iPhone 13 Pro Max and want to take advantage of the 27W fast charge compatibility, you have to use a 30W or higher charger. Although, as we always say, if you are not in a hurry, it is best to charge it with the traditional charger to prevent the battery from heating up during the process and degrading more quickly.
The fastest charge not available with MagSaf wireless chargingeo Qi, which only supports 15W charging maximum.