power_market

259 orders since Oct 26, 2015

Portimão, Algarve, Portugal

Ships from Portugal, Singapore.

Custom Work Available

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Welcome to my Electronics Shop! Contact for consulting service @ electronics / DC-DC energy conversion / Battery diagnostic & repair / electric scooter fix & parts Tha solution for U

Overall Rating:

Review Breakdown

Average Ratings

Product: (4.00)

Documentation: (3.30)

Shipping: (4.20)

Communication: (3.70)

All Reviews

Jed | June 3, 2022

Not a real MPPT solar controller

For DC-DC converter Buck-Boost 5->32V to 1->30V out

I should have researched the original WD2002SJ unit this is derived from, and shown in some of the pictures, which is a battery focused DC-DC power supply. To use as a solar controller, the input becomes the solar panel instead of the battery as designed. Thus the UV-SET becomes the max power point adjustment. It has no automatic adjustment or tracking capacity to adjust for solar, temperature, or any other condition changes.

Response from power_market | June 3, 2022

Hi Sir, thanks for your review! Sorry some wrong product details, I changed it now. This is an amazing buck/boost DC DC converter module for a wide range of applications. Wide range battery fully adjustable charger, advanced solar controller , power supply, CC,CV, UV adjustables , laptop power supply/charger. Example: use a 12V 3S battery pack to power/charge a 19V laptop or a 12V ATX power supply to power old computer! What U see IS what you get WD2002SJ as shown on picture. But careful there are some fake versions out there! At my store IS SURE that U receive the all best original modules! Have a nice day

Randy | Aug. 29, 2019

Like Clockwork

For 100MHz precision RF oscillator signal source 13dBm

Great price. Reliable ship. Professional design & construction. Incredibly small (a plus IMHO). Very pleased. Thank you from 🇺🇸

Mehedi | Feb. 8, 2019

The only compact 3S balanced charger in the market

For 12V 10A BATTERY module 3x 18650 OUT 1-60V USB 220V

This product is amazing. I am using it for over a month. It works exactly as it advertised. Very light in weight and silent operation. It has multiple input and output connections that are handy. I tested the over voltage , under voltage protection, works great. When the battery voltage goes below 11 the circuit automatically cuts off the load to protect the batteries. Overall very professional looking product.

A little downside is , if you are in US and buy from Vitor, shipping from Portugal takes time. But dont worry, Vitor is a genuine businessman, he always retained good communication with me when I asked for the update on the shipping delays.

I was so happy with his honesty and communication that, I bought more cool gadget from his shop and will continue to buy.

Frederic | Sept. 10, 2018

Solid product and wonderful customer support

For FDR 80MHz Plant Soil Sensor Mineral transparency

Although I do not have a testing bed, initial deployment produced coherent values and accurate changes. The casing is solid and the probe part robust. Deployment is as simple as it gets. Support was also wonderful. My questions were answered very quickly and thoroughly. The shipment also arrived only a few days after ordering.

Josh | Aug. 29, 2018

Small packet of cool (or I should say hot)

For Software USB Reflow oven IR controller Win GUI

This is much smaller than most of the other reflow controllers. I am a huge fan of the rocketscream offerings but needed a smaller portable for a small attic workspace. The software is simple, which translates to simple to use. Don't expect huge customizations, the software works, to get you a proper ramp up and down. The hardware works well. I did not push my luck to see what the maximum amp or duration the hardware would support, but it does the job.
The manual is complete, but you still need to understand what is going on during a soak cycle. Recommend this w/o hesitation for those starting out, especially considering how little it costs.

Paulo | Nov. 27, 2016

Excellent Lithium Battery

For 3.7V real 4500mAh Lithium Battery

Nice product, but size (98 mm x 75 mm x 4 mm) is bigger than I expected (no information about size is available on line). Package is ok. I strongly recommend it.

Anthony | Aug. 30, 2016

Paid for product, never shipped

For NEW LiFePO4 5Ah **20A** 1hour Charge time

Product never shipped, however I see they are still selling this item. I suspect this is a fraudulent seller, buyer beware.

Response from power_market | Oct. 31, 2017

Sorry Sir, item shipped but not received.. Refunded

Fernando | June 30, 2016

Good product, works as described

For Wireless Serial TRANSPARENT LINK data @ any place

Works out of the box, just connect to serial tx/rx and start transmitting as if it was a wired connection. Range is ok although I expected a bit more because i am trying to send a signal through multiple walls and across different floors. I will try with different antennas. Shipping was fast, and packaging was adequate.

Roger | June 7, 2016

Great hardware - no software support? no libraries?

For WiFi RTL8188 b/g/n USB micro module 3.3V 150Mbps

Build quality fit for purpose, nice small form factor, trusted chip vendor, unfortunately Tindie seller does not respond when asked about software library support. Not so good.

Response from power_market | June 10, 2016

Drivers and schematic added to product page. Thanks for your preference and feedback.

Josh | Feb. 26, 2016

big battery with honest rating.

For Battery cell 3.2V LiFePO 10Ah 12V 24V 36V 48V 20Ah

After my 1st charge, a 1/2 amp load test resulted in 4.5ah reserve of power. a 2nd "real world" usage test suggests it was closer to 5ah.
good customer follow thru.

Response from power_market | Feb. 26, 2016

Thank you for your review.
All kind of batteries reach optimal performance after more or less 5 charges/discharges.
First cycles are kind of battery startup.

Enjoy your new power source.

Best Regards,
Vitor