Test protocols
Comparisons of tested devices
Everything tested on the blog is compiled in tables: measurement results, review conclusions, and a link to details.
- 491model in tables
- 347reviews
- 6summary tables
Comparison of adjustable converters for a bench power supplyRiden (RuiDeng) RD60xx and RK60xx, RK8009, DPS, DPH, XY, ZXY, Fnirsi: measured ripple, efficiency, and review conclusions.Recommended: 14With reservations: 7Not recommended: 3Open table · 24 models
Comparison of DC-DC modules: step-down, step-up, and universalInexpensive converter boards: what they actually deliver, their ripple, and what the reviews say about them.Recommended: 2With reservations: 6Open table · 8 models
Comparison of power supplies: ripple, efficiency, and temperature riseMains-powered 5, 12, 24, and 48 V power supplies reviewed on the blog: measured ripple, efficiency, temperature rise, and the author's verdict.Recommended: 73With reservations: 77Not recommended: 11Open table · 161 model
Battery comparison: measured capacity and resistance18650, 21700, 26650, and LiFePO4 batteries reviewed on the blog: actual capacity, internal resistance, current, and the author's verdict.Recommended: 108With reservations: 82Not recommended: 26Open table · 216 models
Comparison of measuring instruments reviewed on the blogMultimeters, oscilloscopes, LCR meters, USB testers, and ammeters/voltmeters: the author's verdict, price, and a link to the review.Recommended: 39With reservations: 25Not recommended: 4Open table · 68 models12 V power supplies from Ukrainian storesAdapters, desktop, sealed, and open-frame power supplies rated at 36–120 W: bench measurements and the author's verdict.Recommended: 3With reservations: 9Not recommended: 2Open table · 14 modelsAll figures from reviews
Frequently asked questions
Where does the data in the comparison tables come from?
From reviews on this blog: each row links to a review where the device was examined and measured. A value is left blank if it is not given in the review.
What do the labels “Recommended,” “With reservations,” and “Not recommended” mean?
They are brief summaries of the author's verdict in the review of a specific model. See the review itself for details and measurement conditions.
Are the prices in the tables up to date?
Prices are listed as of the time of the review and are intended as a guide. They may have changed since then.
