How to Calibrate ZB2L3 Battery Capacity Tester Module || Fix Error Reading Volt And Ampere

Calibration : Apply USB power and simultaneously press all three buttons to enter the calibration mode and perform the following steps
The first calibration step after entering the calibration displays the 0u0A; short connect both positive and negative input terminal and press the "OK" button
Next, the display will show J10u; apply 10.00V DC between the input positive and negative terminal and press the "OK" button again.
The display will show J2.0A; apply 2.0 A DC current between the input terminals and press the "OK" button to complete the calibration.
If the tester determines that the calibration data is reliable, it will in turn show 4 calibration numbers after completing the procedure; otherwise it will ignore the calibration attempt, discard the data and exit the procedure.
ＬＩＫＥ | ＣＯＭＭＥＮＴ | ＳＨＡＲＥ | ＳＵＢＳＣＲＩＢＥ
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[@pepito2467]

muito obrigado.

[@yellowpurplebd]

Nice

[@masjackelektronik7156]

Good

[@nyznyz]

I calibrated It shows the voltage and current correctly but the total current is doubled. How can I find a solution?

[@guardiao_das_riquezas]

I have this new version 3.0 of the HW-586, it does not enter calibration mode using the method used in older versions, which is to press the three buttons simultaneously and connect the power to USB, has anyone found out if they changed the method for entering calibration mode Or if in this v3.0 there is no way to enter calibration mode ??? I will be very happy and grateful if anyone can help !!! Thanks Edward

[@PriyaranjanNayak19]

Hi, Edward it worked in the same way

[@guardiao_das_riquezas]

@@PriyaranjanNayak19 Here with my module it didn't work, in other answers some users who removed the display to see the microcontroller discovered that they changed this microcontroller it and possibly for reasons of space in the flash memory they removed the calibration option !!!

[@user-kb5cx4rt3b]

I am suffering same problem please anyone help me

[@guardiao_das_riquezas]

@@user-kb5cx4rt3b What I have discovered so far is discouraging, it seems that some Chinese manufacturers to reduce the cost of this tester they replaced the microcontroller with a cheaper one but with less space in flash memory and for the code to fit in the memory they removed the function of calibration, very that's sad...

[@bdelete5522]

in my case it's not asking for 10v it just goes back to normal mode 00v.. what's the solution

[@Robert-px7mo]

Buy a new one

[@mahmud9579]

Same with me

[@mutuasamuel1661]

same

[@abdelhadyelsayed5123]

ماشاء الله بدأت الفيديو قرآن

[@mustakimhasan7347]

তেমন কিছু বুজলাম না