My opinion: LiPo bags may cause more harm than good.
My father was a carpenter, and some of the best advice he ever gave me was to "use the right tool for the job at hand".
Lipo bags are for Lipo batteries. Period.
Lipo batteries are extremely flamable when they fail. Lipo bags are used for charging Lipo batteries to help contain a potential fire.
Lipo batteries are placed inside the bag, but the charger itself is left OUTSIDE of the bag so that air can circulate and cool the charger.
LiPo battery and LiPo charging bag
"IMR" batteries are a "safer" chemistry than Lipo's, and less likely to flame when they fail.
Battery chargers can create a fair amount of heat while charging batteries. We may not notice this because there is generally enough free air circulating when we use our chargers to dispense the heat generated. However, placing a charger inside an
unventilated bag could result in an unsafe accumulation of heat, thus resulting in exactly the opposite effect of the bags intended purpose.
Simply place your charger on a flame resistant surface: granite countertop, stove top, concrete surface, metal surface, etc. Don't charge batteries while unattended.
LiPo charger and LPo battery