if a lithium battery is discharged to such a level, no re-charging should occur !
There has been little written about the charging curcuits and I wonder why state of the art technology seems not to have been employed?
Battery chargers made for professional broadcast camera batteries diognose each battery and adjust and regulate the charging according to the health of the battery.
https://www.paguk.com/sites/default/...G_Chargers.pdf
These intelligent chargers don't need seperate thermal sensors, just two wires to the battery. A micro computer uses algorythms to ensure the battery is not overcharged. The microcomputer can even sense the chemistry of the battery and can run a discharge/charge program. Each battery has a chip so the charger recognises its charging history. This kit designed to work with up to 17 volts and is available for a $1k!
What safty features designed into the Dreamliner charger?