Hard to diagnose this way. If you would search for Pali's BME replacement, install it (backup before!) and provide a dmesg logs (after connecting in every variant/situation), we could get some idea WTF is going on.

Otherwise, current monitoring from device's side (via bq27200.sh script or [shameless plug]BNF from repos[/shameless plug]) could also tell something, but BME repl provide much more debug info than normal BME, allowing to determine what exactly device "thinks" happen, when you plug various stuff.

/Estel