Im probably wrong here but my thinking is that charging a lipo in a sack gives the user a chance to remove the sack and lipo to a safe place if the lipo starts to smoke and set alight. The sack gives you the time to remove the lipo away from other members who,s safety should be YOUR priority. I have always charged my lipo,s in a sack from the day I got them. I cant see the house insurance covering me if they go up, burn my utility room and smoke the house if I did not take the available safety precautions.
I can also see the point of view from the ic racers. I dont know how many times in a meeting they have to recharge their reciever packs but the fact it is already in an enclosed space if they choose not to remove it from the car would give them the time to remove the car to a safe place away from other members.
Sacks are not designed so we can all stand round to watch the smoke bellow out. They are designed to contain the danger for time enough to remove it to out of harms way.
Other people,s safety should always come first.
Common sense has to prevail at the end of the day.
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