Originally Posted by
PhotoJoe
I don't know what the recall is for, or what the batteries are doing that are not up to their standards, HOWEVER, I have a very healthy respect for lithium-ion batteries. I have seen a 160wh battery short while on charge and ignite. We were fortunate enough to get it outside before it ignited, however, once it went, it was a mean fire. "Batteries" are made up of smaller AA (roughly) size cells. When a lithium-ion battery ignites, there are usually two events. One is a small flame discharge, usually out the vent near the positive terminal. The second event shot flames out about 4 feet. These events are about a minute apart and usually start the adjacent cells on fire. Those batteries then had their dual events. When they do burn, the flames are much like blow torches or road flares, but 4 feet long.
If you have a lithium-ion battery that is suspect (and I suspect ALL of mine, all the time now), only charge them as long as necessary. Do not leave them on a charger indefinitely. That is where we went wrong. If you have one that just won't take a charge, or depletes much faster than you think it should, stop using it and replace it.
Thanks for listening. I'll get off my soap-box now.
Thanks for the info, it's good to know that long charges may cause them to ignite. I typically charge the Magicshine battery pack in the evening so I'm regularly checking to see when the green light appears on the charger indicating a full charge.