Pick by wattage class, because each class has a clear winner. For phones and
earbuds, the $14 Anker 20W finished best in the entire
comparison: best-in-group efficiency at 91.7%, the coolest case, a 36 oz
grip on the outlet, and zero detectable standby draw. Step up to the Anker
Nano 47W for tablet-class charging — it delivered 99.2% of its rated output,
the closest to its own spec sheet of any charger tested.
For laptop charging, the UGREEN 65W wins the 65–99 W
class at around $35: four ports, 0 W standby, strong outlet grip, and 144°F
under load while several rivals pushed past 170. The Anker Prime 67W edged it
on efficiency (92.6%) and temperature, at nearly double the price.
At 100 W and up, the value is startling: the $28 TOPADRE won the class with 93 W sustained to the device and 93.1% efficiency — it's
corded and bulky, but nothing near its price touches it. The compact pick is
the Anker 747 150W, whose design also tied for the best outlet grip in the
whole test, and the desktop pick is the Anker 200W, the coolest high-power
charger at 108.5°F with the highest total output measured (161.6 W).
Two warnings from the data. First, outlet grip is a real safety difference:
the Elecshion 65W and MINIX 165W both fell out of the outlet under their own
weight — a charger dangling off a worn outlet with a laptop attached is how
hardware hits the floor. Second, ratings on the box are aspirational at the
bottom of the market: the BOVICAS 100W managed 51 W, and the $9 Aioneus
40W hit 219°F while its output sagged. The chargers that ran coolest —
almost all of them Anker units and the TOPADRE — are the ones whose
electronics will still be healthy in a few years.