It also includes a low-current charging mode for smaller accessories, activated by double pressing the power button.
The Anker 737s standout feature is its ability to sustain a 140W output with rock-steady voltages.
While it does get warm under sustained high-wattage loads, efficiency remains solid.
(Image credit: TechRadar)
At 140W (28V, 5A), 85% of the rated capacity is available.
For phone charging at 9V 20W, the efficiency remains high at 87%.
The Anker 737 charges itself impressively fast, reaching full capacity at 140W in under an hour.
(Image credit: TechRadar)
At 100W, it takes approximately 1.5 hours.
Read our fullZMI No.20 review
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