As you might know LiPo batteries can explode while charging them (or by physical force). Yes you will get some notice before it happens because the battery will puff-up and start to smoke. But if you have left the batteries unattended while charging you won’t see that and the catastrophe might strike down. Now, you should never leave your LiPo’s unattended while charging them but who can sit and watch the batteries for a whole charge cycle?
What you should start to use is a LiPo safety bag!
A LiPo safety bag is a small bag made out of a fire retardant material. You place your LiPo battery in this bag while recharging the battery. It is also good practise to use the LiPo safety bag when you are storing or carrying you LiPo batteries. Usually you seal the bag with velcro and only the charge cable is sticking out of the bag. If the worst should happen you have a good chance to dramatically reduce the damage.
As you can see LiPo’s can really cause a real mess so make sure you are protecting yourself and your home when charging LiPo batteries.
My LiPo safety bags are bought at HobbyKing (LiPo Charge Pack 18x22cm Sack) for 1.99$ each. Prices may vary and the size of the bag may also vary but they all do the same, reduce the damage if the worst should happen. The particular bag that I have will hold ~2-3 3S LiPo batteries at the same time. Of course this is dependant on the size of your LiPo sack. Mine is 18x22cm (or ~7×9 inches). I find this particular bag quite good because it has a good opening for the charging cable and you will be able to have more than one LiPo in the bag. The velcro used to seal it is robust and the price is really affordable.
I think this is a cheap insurance so if you don’t use such a LiPo safety bag when handling your LiPo batteries make sure you consider buying one (or more) bag(s).
Below is a selection out of many places where you can buy your own LiPo safety sack (different size and price):
- GraysonHobby LiPo Guard Kevlar Bag
- HobbyKing – LiPo Charge Pack 18x22cm Sack
- Amazon – Lipo Safety Sack Large