XH-M403 or 5 V UPS

In brief: Based on review measurements: Test current: XH-M403 (8 A vs. 2.8); Temperature rise: 5 V UPS (78 °C vs. 105).

Model	XH-M4032020Read review →	5 V UPS2019Read review →
Test current, A	8	2.8
Temperature rise, °C	105	78
Review conclusion	Not recommended	Not recommended

Only in one review: Voltage 5 V (5 V UPS); Current 2 A (5 V UPS); Ripple 100 mV (5 V UPS); Price 1.17 $ (5 V UPS).

XH-M403: The converter has coarse adjustment, unstable output under load and heat, and its controller failed during testing.

5 V UPS: It is cheap and handles the rated current, but the author was disappointed by the large voltage drop when switching to battery.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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