Old 04-07-2022, 10:11 PM
Super Contributor
Join Date: Mar 2011
Location: Fond du Lac, WI
Posts: 1,042

On the subject of voltage drops under load.

Before I had telemetry, I set a timer so I'd land at around storage voltage. That way I could pack up batteries and go home without having to mess with them. Now, I set my telemetry alarms for 3.3V/cell. If they go off under power, it's time to land. I want to have at least 3.7V/cell resting (again, pretty much storage voltage).

The point is if my alarms are going off but I still have more than say 3.8V/cell I know that battery is getting weak and it gets "de-rated" for use in less demanding planes. So while I may get one or two years in an EDF, but the same battery can still be fine for use in prop planes for several more years.
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