Due to the number of combinations and permutations of batteries and devices, a comprehensive review is unlikely. Device manufacturers, like battery manufacturers, appear to use settings that give them the best-perceived values. Since most measurements depend on operational considerations, such as pressure, humidification, charge level, ambient operating temperature, charging parameters, etc., it is unlikely anyone will spend the time and money for a comprehensive review of multiple devices.
Perhaps the best advice is that your mileage will vary. Next come anecdotal reports from users. Other than that, it is a costly trial-and-error crapshoot.
As for me personally, I use my AirSense 10 AutoSet with a pressure of 15 cm H2O, pass-thru humidification only, no heated slimline tube, and a run time of 9 hrs (including time to fall asleep and a semi-wakeful period). For camping, I use a time of 6 hrs. I work off DC only with no inverter and use a 12V 50AH LiFePO4 Battery, (18 pounds with cables), ResMed DC-DC converter) and a charger made for LiFePO4 batteries. I haven't attempted anything solar. I count one eight-hour day with a charger refresh before the next use as a success.
Charging time = (Battery capacity / Charging current) x Charging efficiency. Temperature is a major factor. I try to avoid discharging my battery by more than 50%.
I suggest reading
https://document.resmed.com/en-us/docume...lo_eng.pdf.
At home for minor interruptions, I use a Medistrom Pilot 24 in pass-thru mode.
The setup is a bit pricey, but I consider it the ResMed premium.
There are many fine forum discussions on this issue, including ones with detailed pictures and assembly instructions.
Best, Steve
"The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." -- Marcus Aurelius
