Hi everyone, I'm new to the community and am in the process of building my first quad. I'm almost ready to get this thing in the air, but I'm alarmed at the apparent safety record for lipos. At RC groups, there are well over a hundred threads documenting lipo fires, some with obvious causes and some that are completely inexplicable. So, I have two main questions: are these things really dangerous, and if they are, why?
Given that these are incredibly volatile bundles of chemicals, it's not surprising that they're dangerous when punctured, crushed, or subject to charging abuse. But barring obvious physical stress, it seems unreasonable to have to charge these things in an ammo box. These things aren't (supposed to be) bombs--lipo technology is used quite safely in many other applications. So why all the fires?
The evidence I've read is anecdotal, so I'm wondering if the danger has been exaggerated, or if the cause of failure may be something the poster failed to notice or mention. I know that some people can be particularly rough with their devices, so perhaps some of these are cases of mechanical stress that weren't noticed in time.
If these reports aren't exaggerated and user error isn't so much a factor, then are these things poorly engineered? Are shoddy chargers to blame? Because seriously, it strikes me as wrong that a piece of technology should be so dangerous under normal usage conditions. Spontaneous house fires are nothing I want a part of.
What is your guys' experience with lipos, and what are your opinions on this issue?
Apologies if this is in the wrong category; none of the others seemed appropriate.