I would hope the potential hazard of lithium batteries be more of an everyday common knowledge among all users of electrical devices.
Also hope the manufacturers invent some safer batteries.
I have some unused battery packs of 18650x4 sitting there and I just recharged all of them for about half hour to make them stay partially charged. I guess it's a good idea to periodically recharging them slightly if they have not been used?
Yes, and hopefully you are using a balance charger. From what I have read the life span of LiOn is about 2 years no matter how many times they are charged, so best to check the voltages and keep them getting too discharged.
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