Improving the software of the EBC-A40L battery tester

[avandalen]

I want to use the EBC-A40L battery tester to test batteries at fast charging, see the full article here:
https://www.avdweb.nl/solar-bike/batteries/fast-charging-battery

The software is limited to just 3 fixed measurement methods. I would like to have the following additional control commands for:

• Set the current or voltage

• Read the current and voltage

The tests can then be done with custom software on the PC. For example, I want to charge with 3C, then switch off the current for a short while to measure the voltage and the internal resistance, then continue charging. That would be a big improvement for the EBC-A40L. I asked the factory about this but got no answer.

Who can help me with this?

 

[SUPERJC]

some time ago I use a power supply DPS5020 with battery input and load output
(load-> resistor)
This Supply can be controlled with known protocol
I use an ESP32 CPU to drive it
I do this curve of my battery (11S5P) for my Bafang BBS01 motor
You can see RI (green curve) about 0.3 ohm


https://fr.aliexpress.com/item/32821185351.html

 

[avandalen]

some time ago I use a power supply DPS5020 with battery input and load output
(load-> resistor)
This Supply can be controlled with known protocol
I use an ESP32 CPU to drive it
I do this curve of my battery (11S5P) for my Bafang BBS01 motor
You can see RI (green curve) about 0.3 ohm


https://fr.aliexpress.com/item/32821185351.html

This can not charge batteries

 

[SUPERJC]

the DPS5020 can also charge Battery
But OK it’s not exactly what you want..

Funny Sample
my DPS5020 charge Car battery with bike charger