Fluctuations in charge Voltage?

[null]

Charging my Sherman with the remaining YZ450 (havent made adapter for new charger yet):

The voltage as reported by Darknessbot is doing small fluctuations constantly, resulting in an uneven curve. (up to 0.2V flickering).

Is this normal? My KS wheels charge reading is very even.

Joining a .CSV is there is anything to get from it.. Thanks for any insight.

 

Voltage (1 minute) 2.csv

[Chriull]

1 hour ago, null said:

The voltage as reported by Darknessbot is doing small fluctuations constantly, resulting in an uneven curve. (up to 0.2V flickering).

From your csv (seldomly) max 0.13V and in average 0.03V. As this is most likely the ripple of the DC/DC converter it's +/- half of this. For this higher power charger imho "in range" - nothing to worry about. It's just 0.13 to 0.03% ripple!

My 8A 67.2V charger gives me some ripples ?like this?, too. Have to look once at the exact values.

1 hour ago, null said:

My KS wheels charge reading is very even

With a lower power charger?

Mainly the ripple (?should ?) depends on the charger (inductivity) and burden(current)

[null]

Yes low power, it’s been a while since I looked at the higher power charging due to Covid.

Thanks, being at my second board I have a bit of paranoia

[Chriull]

7 hours ago, null said:

Yes low power, it’s been a while since I looked at the higher power charging due to Covid.

Have here https://forum.electricunicycle.org/topic/18317-battery-faq/?do=findComment&comment=307641

some of my 8A charge graphs - with about comparable ripple.