5 V UPS or LM2596 DC-DC converter board

In brief: Based on review measurements: Test current: 5 V UPS (2.8 A vs. 1.5); Temperature rise: LM2596 DC-DC converter board (60 °C vs. 78).

Model	5 V UPS2019Read review →	LM2596 DC-DC converter board2016Read review →
Current, A	2	3
Test current, A	2.8	1.5
Temperature rise, °C	78	60
Review conclusion	Not recommended	With reservations

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

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.

LM2596 DC-DC converter board: The board works, but its ICs may be counterfeit; the author recommends keeping the load at or below 1.5 A.

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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