Originally Posted by jonescg
My pack will be vented, but not for active cooling. More like an emergency release valve
And they will point downwards for good measure. I'm embedding a couple of thermocouples in there to warn me of any impending disasters. Anyway, if the solder is getting hot enough to melt, you got bigger underlying design problems.
Its not the melting of the solder that I think is a problem, theres nothing in there hot enough to melt solder anyway. It s the difficulty of replacing a cell that eliminates soldering as an option.
As for ventilation, even low IR cells are going to get warm and if you have 400 cells backed up together like that you might not get that heat out before the next time you go on track and you are going to get an escalation during the day.
A ventilated pack gets any heat out straight away and you can run it full pace as soon as you charge which is 1.5 hours.
Think about it Chris can you get that heat out of the core in 1.5h ?
I would never take a risk with LiPo's especially if it only costs me 80mm of pack height. It still fits in the bike.