I really don't want to have anything catching fire... We have and others have been using LiPos in a few things for a while and so far no problems... The BM that is in the stack I hope will monitor and solve the problem anyway.
Microduino-BM is a discharge module which combines a single-cell Li-ion battery charge management, power detection and LED indication. The output voltage is 5V, and LDO is 3.3V output. Provides the outstanding battery management for the Microduino-Core module.
If the voltage drops below 3.2V, LED1 flashes and within 5 seconds the HT4901 goes to standby mode to avoid over-discharging the battery.