I feel like I have never encountered this problem after a year of using L5 (~6 months L5, ~6 months Liberty Phone).
Is the difference that I try to keep battery charge above 40% as much as possible, and usually battery swap to an externally changed battery when it falls below 40%?
For the first several months I didn’t know to battery swap while plugged in and would frequently power off the device to so the swap, so its not as if I was avoiding on/off cycles.