Ronos Posted February 2, 2021 Share Posted February 2, 2021 After setting the LVC to 2.9 on a 4s lipo (esc manufacturer recommendation, with it being a multi motor model),which comes to a total of 11.7v. Is it normal for the LVC to cut in early, let's say 12.8v. Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted February 2, 2021 Share Posted February 2, 2021 3.2v/cell, which is +10%, I wonder what the sensing tolerance is in an ESC? Also, how did you measure the 12.8v at the point the LVC kicked in? Was it under a high load or just quiescent voltage? Multimeter or telemetry reading? Whatever, 3.2v is near enough flat that I would try to avoid going lower than that. Quote Link to comment Share on other sites More sharing options...
Ronos Posted February 2, 2021 Author Share Posted February 2, 2021 Used a watt meter, and was running a couple of notches above half throttle, pulling approximately 500w. Quote Link to comment Share on other sites More sharing options...
MattyB Posted February 2, 2021 Share Posted February 2, 2021 It isn't cutting in early - it is hitting that voltage under load, but when you remove the load at the end of the flight that voltage recovers. This is common to all battery chemistries and perfectly normal. 12.8V = 3.2V/cell; personally I don't run my packs down that low as it represents somewhere between 8 and 18% remaining, well into the zone where a drop in ambient temperature could result in pack damage. I suggest you cut 10% off your flight timer or start using telemetry to monitor your packs unless you are happy for them to have a short life. Edited By MattyB on 02/02/2021 15:40:16 Edited By MattyB on 02/02/2021 15:53:28 Quote Link to comment Share on other sites More sharing options...
Ronos Posted February 2, 2021 Author Share Posted February 2, 2021 Thanks chaps, that will do me nicely, was just experimenting to see when the LVC would kick in. I'll know when to land now. Quote Link to comment Share on other sites More sharing options...
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