In article <
kup9j2FkhndU1@mid.individual.net>,
Gordon@leaf.net.nz
says...
https://www.neighbourly.co.nz/public/auckland/st-heliers/message/70879031
It is always good to to hear first hand about an event.
This was just an e-bike, not an E-car with 400kg of lithuim batteries to burn.
The post doesn't say what brand of e-bike went up in flames.
Build quality and design matter. You don't hear about iPhones going up
in flames regularly and they use the same battery chemistry as most E-
bikes. But Apple has a reputation they'd rather not risk and so they
care about where they get their Li-Ion cells from and that the battery management system is treating them according to the manufacturers specifications. The notorious Samsung Galaxy Note 7 stands as an example
of what happens when you don't take proper care.
A asise I came across that charging EV batteries below 0 degrees C, is
not
good for the batteries or the saftey of them. Okay here is NZ we can
probably get way with this, but there are places were below zero is common.
This is not an issue unique to EVs - Li-Ion batteries in general don't
like being charged below zero or above 45-60 (they can handle lower
operating temperatures) - if you put your phone in the freezer for a
while it *should* refuse to charge until it has warmed back up.
I believe many (most? all?) EVs have a function to warm up the battery
(or cool it down) before you start charging to solve this problem.
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