... According to the measuring device, it supplied a maximum of 91.5 watts to the MacBook Pro, 20 watts to the Xiaomi smartphone, and up to 26 watts to the Samsung Galaxy and the iPhone. Remarkable: When all ports were occupied by power-hungry devices, the Anker 737 still supplied 91.5 watts to the MacBook Pro - just like without any rivals...

Among the 10,000 mAh power banks, a Varta model with wireless charging wins the test, while Xiaomi convinces with high performance and short charging time among the 20,000 mAh power banks. If you want to buy a really powerful power bank, it's best to go for the Anker 737 - it charges in record time, but is quite expensive...