Originally Posted by
djroberts
It also seems like it would depend on the performance of the battery. For instance setting LVC at 3v on a Thunder Power would go way beyond the 80% rule due its ability to hold voltage. They hover around nominal voltage for a long time then slowly decrease to about 3.5. After that the voltage tanks and the battery is almost dry.
At 3.5v however its still got some capacity left but on cheap batteries that don't hold their voltage it may cut out too early.
I'm operating on uneducated logic here so please correct me if I'm off base.
To some extent yes. It’s mostly about maintaining sufficient resting voltage from all of the data I have seen. A lot depends on the load the battery is under, how much the voltage is sagging under load. This impacts the actual state of discharge. Higher amp discharge rates (relative to battery size) can tolerate a lower voltage under load. Conversely lower loads need a higher shutoff.