Guess this is due to only a few values.
Your panels look good.
However, currently you use queries like this:
SELECT mean("cw_h_no003_Batt1_Discharging_mA") FROM /^$suid$/ WHERE $timeFilter GROUP BY time($__interval) fill(null)
I would remove mean and GROUP BY time($__interval) to get all and the real values displayed. Currently with only a few values, this options don’t apply, but later they could remove (group) some values and only display mean values.
Additionally, you could also let for example COBC Uptime [sec] display as a time-series graph.
For examples, feel free to take a look on dashboards of other CW beaconing satellites under 
.