Hello,
Now that I've purchased some flat top 18650s, I'm thinking that one could easily mix up polarity on these.? What happens if someone inserts both batteries backwards?? I'm assuming that full reversal of the EMF would cause damage and that having one cell reversed will simply decrease the voltage potential below the threshold required so no damage there.
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If it's possible to cause damage, are there recommendations for adding elements to prevent it?
Thanks
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Hopefully the question is not a duplicate.
Kevin