I have been flying small, remote-controlled, electric-powered helicopters as a hobby for many years. They use lithium-ion batteries. Each one came with very scary warnings about the dangers (overheating, fire, and explosion) of overcharging.
They why did the FAA OK lithium-ion batteries for use in a passenger aircraft?
Robert Godfrey
Snohomish
Talk to us
> Give us your news tips.
> Send us a letter to the editor.
> More Herald contact information.