Among the many MagSafe accessories for iPhone, Apple MagSafe Battery Pack is a very practical magnetic mobile power supply, but its actual use experience is average. The biggest problem is that the charging speed is very slow, which is not the same as Smart Battery Case, but what everyone didn’t expect is that this product can actually improve the charging speed through a firmware upgrade.
In order to get 7.5W charging on the go, update your MagSafe Battery Pack to the latest firmware. The firmware update begins automatically after you attach your battery pack to your iPhone. The firmware update can take about one week.