Re: own EV happens to have the exact same problem 4 Steve K
One of the problems you have in a charged LiPo is the stored energy in the cell which complicates handling a fizzing or popped cell even if not currently burning.
Better hope your protection electronics are in good shape if you ever try charging a fully discharged LiPo battery.
This battery design is riddled with the most gotchas of any so far commercially available. When delivered in a "lightweight" configuration we are basically talking a fire waiting to happen.
Aside: My dad used to teach industrial electronics at college level. He came home one night to report that a discharged Duracell Alkaline AA battery (then a fairly recent innovation) had been sitting on his lab eye-level shelf when it spontaneously exploded. His students changed their trousers, then theorised an internal short, but thereafter he had them swap out the batteries on the instruments before they discharged beyond a certain point. Student eyeballs were two a penny it was true, but a decent multimeter was hard to replace.
Biting the hand that feeds IT
