I have started making a few of my own batteries out of 18650’s and need to know what is the voltage you would land at and also set the alarm in Betaflight?? Also an 8 pack I ordered had 2 batteries that were dead. One read .9v dc and the other read .5v dc. Is there anyway to revive these batteries? The company gave me my money back for the whole 8 pack and I just wanted the 2 batteries replaced!!
When I use lI-ion packs I consider 3.4/3.5 my halfway point and usually turn around there, that gets me back home around 2.9/3v
you can go as low as 2.6/2.7 so there’s a small buffer in case of wind resistance on the return trip
Nimh setting can be useful to revive an overdisharged lithium cell. Find the cell count at which your charger will begin the cycle. Limit the "pop cycle to two minutes, and babysit that thing
Spot welding is ideal for low resistance in current flow. But sure if you are doing that?
Yes most 18650's are rated at 2.5v min depending on the cell that may or may not be flyable
Most people land at 3v or 3.2v. You can push them to 2.5v but, the voltage drops quickly after 3v and your power is limited.