SKU: 15709503025

1.2v 12v 18650 Li-ion Lithium Battery Capacity Tester + Resistance Lead-acid Battery Capacity Meter Discharge Tester External HW-586

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Description

1.2v 12v 18650 Li-ion Lithium Battery Capacity Tester + Resistance Lead-acid Battery Capacity Meter Discharge Tester External HW-586https: www. youtube. com watch? v=cE0kUMHgnME Description Power supply voltage: DC4. 5 6V (micro USB interface) Working current: less than 70mA The discharge voltage: 1. 00V 15. 00V resolution 0. 01V Termination voltage range: 0. 5 11. 0V Supported by current: the maximum 3. 000A resolution 0. 001A The maximum measurement error voltage: 1%+0. 03V The maximum measurement error of current: 2%+ 0. 010A The maximum battery capacity range: 9999Ah

https://www.youtube.com/watch?v=cE0kUMHgnME

Description
Power supply voltage: DC4.5-6V (micro USB interface)
Working current: less than 70mA
The discharge voltage: 1.00V-15.00V resolution 0.01V
Termination voltage range: 0.5-11.0V
Supported by current: the maximum 3.000A resolution 0.001A
The maximum measurement error voltage: 1%+0.03V
The maximum measurement error of current: 2%+-0.010A

The maximum battery capacity range:
9999Ah (1Ah=1000mAh) value of the larger through the decimal point shift switch,
when lower than 10Ah shows X.XXX, above 10Ah show for XX.XX, and so on.

Board size: 50mmX37mm

Note:
this circuit in order to improve the voltage measurement accuracy,
specially designed DC bias,
when the terminal is what all don't pick will display a small voltage,
does not affect the actual measurement,
if you are short connected with the input terminal (absolute 0V)
will display 0. To understand the principle can consult the superposition theorem in electrical engineering.

Method of use:
1> measured battery should first fully charged.
2> connected with the tested battery anode to cathode to input input positive,
negative, is not reversed (with load reverse may damage the circuit)!
Connects the load to the output positive electrode and the output negative electrode,
through operating power to the tester micro USB
(not available on desktop or laptop USB power supply),
the display of battery voltage.
3> direct start test only need to press the "OK" button,
the tester can automatically set according to the battery full charge voltage suitable termination voltage flicker,
and will display 3 times after the start test.
Need to set up the termination voltage need only when
the battery voltage display state press "+" or "-" key modification,
termination voltage display for P at the beginning, behind represents voltage value,
resolution 0.1V, set up after the press "OK" to start the test.

4> testing began after the tester will electronic switch connected to the control of the load
, the testing process data are displayed in the release capacity (Ah),
the current discharge current (A) and a battery voltage (V) between the round.
When the battery voltage reaches the set after the termination voltage tester,
cut off the load control switch, display the data stays in the capacity (Ah)
and the corresponding indicating lamp above and with rapid blinking,
the actual discharge capacity of the battery capacity is displayed,
press the "OK" can be terminated flashing make stable data display,
again by pressing the "OK" the button back to just power on state can replace the battery test the next day......

The error code and meaning:
Err1: the battery voltage higher than 15V
Err2: the battery voltage is lower than the setting voltage termination
Err3: the battery is unable to withstand the load discharge current resistance is too large or line
Err4: the current is too large (current is more than 3.1A)

Two calibration operation (operation after self calibration, represents give warranty):
At the same time, press three keys to the tester is energized,
enter the calibration mode, the first display calibration record number of times
after entering the formal calibration sampling procedures to display the 0u0A,
then the short connection input positive and negative pole after press the "OK" button to complete the display,
J10u, between the input positive and negative applied 10.00V standard DC voltage after the
"OK" button is pressed after the show, J2.0A, to the output negative electrode (inflow direction)
and the input cathode (outflow direction) under 2.0A constant DC
current to press the "OK" button to complete the calibration.
Tester will pre audit of the calibration data, if the calibration data is reliable,
it will in turn show 4 calibration number after the exit,
if the pre audit that data is not reliable,
discarding data exit.

 

https://www.youtube.com/watch?v=cE0kUMHgnME

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Exchange/Return Notes
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SKU: 15709503025

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4.8 ★★★★★
Based on 20 reviews
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Product Reviews
J
Verified Purchase
Jimmy D. Howerton
Fort Morgan, US
★★★★★ 5
Need lots of connectivity + charging. EXCELLENT.
Color: Gray
Problems with my original USB hub required something better. This unit has allowed me to connect all my peripherals to my laptop and I haven't had any problems with the USB port reliability I was dealing with. I'm using two hubs in series and now everything is working perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
S
Verified Purchase
Stuart Nezin
Massapequa, US
★★★★★ 5
Yes, I wish I'd bought this on Black Friday, but still no regrets
Color: Gray
If you use a lot of add-ons like I do you won't regret buying this hub. The number of connection PLUS high power charging ports works for me. Printer, scanner, mouse dongle, phone, tablet, external drive, flash key all connect with zero problems to my Win 11 laptop. Saves my laptop ports from wear and provides a central location for charging my stuff. Solid metal construction, touch switches for each port, even slots forSDd and micro sd cards makes great design and features. Had a decent usb 3 hub but this one SO much better, good value
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Reviewed in the United States on February 26, 2026
M
Verified Purchase
MMM
Natrona Heights, US
★★★★★ 5
well made, nicely built, fast and everything fits firmly
Color: Gray
Sleek and well made, heavier than my old one, as it seems better built in every way. I love the flush power buttons, they don't get accidentally pushed in because of the firmness of the buttons, not hard, just not overly easy like some cheaper hubs. The color is nice looking, the lights are subtle but easily identify each port and the main thing, it's fast. My old USB hub was decidedly slow and often under-powered. It did not always work with some demanding devices. But as soon as I plugged this in, all my devices were recognized and worked correctly. This was a great buy.
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Reviewed in the United States on August 1, 2025
O
Verified Purchase
Olivia
Fort Morgan, US
★★★★★ 4
Had some questions and needed to test it, here's the verdict!
Color: Black
No pictures, but I wished to get this review out as soon as possible because I'm very happy with my purchase. My last USB hub from aother brand broke immediately as soon as I got it which is why I wanted to purchase this as an "upgrade" for the higher voltage and more port options. Firstly I really appreciate that they gave both a USB 3.0 to USB-C and a USB-C to USB-C cable for the power depending on what type of port you have on your computer. The extra cable is always appreciated. I had a bunch of questions stemming from other reviews so I tested them. When you press a button nearby any port, the light goes on. When you hold it, it goes off. When the light is on, it powered my external drive, and when I hold-pressed it off, the drive on my computer disappeared as it should when no power is going to it. I'm glad that works perfectly. Also, it takes 16 seconds to recognize my 8TB drive. It seems a tiny bit long, but not too long, I'm pretty patient. For the SD and Micro SD card slot, there is no on and off power buttons. But they DO work. This was important for me as it was one of the reasons I bought it. The quick charging also works as intended. Also, I wondered what size it was- it's 8.75in long, 2in width, and a measly 0.65in heightwise. Every cord included is slightly larger than 3ft so there should be no problems with connecting it, though maybe it's too many wires for some. One thing I was concerned about was that a reviewer said the ports were very tight, and they are. I thought I was gonna break the ports by connecting a USB, but thankfully it didn't break. I don't know how realiable that is over time, though I imagine because of the buttons, the idea is to connect them once and if you want to not use it, to simply press the button to turn them off. So I think I'll do that once I get all my USBs set into place. If it breaks any port in that process down the line, I'll update my review. And based on the manual, here are the speeds: USB 3.0 & USB C - Max 5GB/sec data speed, Max 5V/1.5A power SD and Micro SD Slots - Read 50-104MB/sec, Write 30-80MB/sec (Subject to memory card speed and computer USB ports) USB QC Ports - No speed or power given Total power supply: Output DC 12V/7.5A (Input AC 100V~240V / 50Hz~60Hz / 2A) The power supply is a big brick LOL. But I appreciate the power, thanks. It's very easy to use overall, I just plug something in, turn the light on, expect it to work and it does. Besides it taking great force to plug a USB in, everything else is exactly what I wanted. Glad I bought this. Edit, a month or two later: The USB ports all still are working, but I noticed some external drives don't have enough power to work, even with the 8V, so I'm docking a point. I should be able to plug at least one in with a few other things connected, but this makes it a little less functional for my usage.
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Reviewed in the United States on June 13, 2025
K
Verified Purchase
Kreg L.
Boise, US
★★★★★ 5
Just what I needed
Color: Black
Never given!give 5 stars. But, this got it because exceeded what I was expecting. Purchased because new computer slots were inconvenient and more new devices are using usb ports and having powered ports was essential. Have used for several months and keep finding more things needing it. It was more than I expected/needed at the time .But, was designed for growth I was not expecting. Getting excellent connections, speed, and reliability even though I’ve nearly doubled the devices I planned on using. To be clear the system I connected to is all about performance and top of the line hardware. I was a performance engineer in a previous position and am very picky with this system setup. I’ve tested the hardware several times tuning things and it’s never the bottleneck. The original purchase was intended as a short term fix when I needed something yesterday and as stated b4 it has earned a place in my permanent setup. Would buy again and would explore other offerings by manufacture.
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Reviewed in the United States on October 23, 2025

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