I did another round of 50 amp charging and the power supply voltage dropped/fluctuated between 11.24v~11.32v. I can live with those numbers, as I do not charge my packs greater than a 1C charge rate too often.
I will add, the HP DPS-750RB's fan did "ramp up" a bit at the 6 minute mark. Definitely not a as noisy as the my Ultra Power charger's fans (one sucks air in; one blows air out).
Last edited by RustyUs; 08-17-2017 at 11:31 PM.