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Pros & Cons
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Accurate Voltage Readings
Customers are highly satisfied with the accurate voltage readings of this power supply, as confirmed by their measurements using various tools. Some users have noted that the coarse controls could be improved.

Highlights
Quality
Voltage and current readings were exactly as expected and tolerances were within manufacturer specifications.
While the added noise might bother some, this is the purpose of the cooling, to keep the power supply within the allowed temper... Read More
I scoped the outout and it was the corect voltage and no ripple.
For those that are having issues on setting the voltage and amps with the dials there are 2 coarse and 2 fine knobs for setting... Read More
Price
The price was right and the adjustable current will come in handy.
Conclusion: at $50 for a 30/10a (300w) power supply, rating this 5-stars.
I looked at a couple of dual units, essentially two of these in one, with the ability to parallel or series the output, but dec... Read More
Competitiveness
Pros: jesverty is a specialty power supply manufacturer, many with great ratings/reviews; cost is comparable to similar offerings.
In general, if you buy a higher rated supply, and run it at half power, it should last longer than a smaller unit running at fu... Read More
Overview
- How are reviewers describing this item?
current, constant, good, charged and same. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has determined that the review content quality is high and informative.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 605.
- Our engine has discovered that over 90% high quality reviews are present.
- This product had a total of 1,455 reviews as of our last analysis date on Mar 28 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Initially the unit did not operate as i had expected
Posted by a reviewer on Amazon
Summary this is the 3rd power supply i have bought since 2020
Posted by a reviewer on Amazon
The first two were the same 30v6a 180w one blew out and the other is still working
Posted by a reviewer on Amazon
Wanted a bit more power when charging 12v agm batteries so ordered this unit which is a 30v10a 300w
Posted by a reviewer on Amazon
I typically start with this charger and then finish off the cells with an xtar lithium battery charger
Posted by a reviewer on Amazon
Sometimes the xtar stops at 4
Posted by a reviewer on Amazon
Observations this unit has a robust cooling fan and when running at high current above 5a the fan kicks on
Review Count History
Price History
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