SkyRC B6neo DC mode constant current stability issues (firmware v1.74) - CC bug

As you can see B6neo can reach over 1.5A but few seconds later for some reason struggles with reaching 1.1A current limit in CC mode. There is no problem with resistive or electronic load, only when charging car battery which can sink a few Amps easily.
Charge modes work without any problems.
USB-C power supply: 140W Baseus GaN5 Pro working at 100W mode (20V@5A). B6neo is able to reach it's maximum advertised power 78~80W which matches SkyRC specs.

[@rgreeneish]

are you using an adequate power supply?

[@krzysztoff69]

Sure, 140W Baseus GaN5 Pro and it reaches around 78~80W which is max advertised power for B6neo. Regardless, it struggles with battery as load - no problem with resistive or electronic load. You can see in the video that current goes up to 1.5A (with higher limit) and few seconds later it's unable to deliver 1.1A.

[@FREE-xd6or]

try activating holding voltage

[@krzysztoff69]

What do you mean?

[@FREE-xd6or]

@@krzysztoff69 settings item below trickle charge

[@krzysztoff69]

@@FREE-xd6or Oh, I see, you didn't pay attention: this is "DC Power" mode which doesn't have any other settings
than voltage and current - check the video.
All charge modes work flawlessly, current is spot on, unlike DC mode which has an obvious firmware bug.
I contacted SkyRC regarding this issue and they will hopefully fix that.