Evolve Carbon All Terrain's Catching Fire!

[torqueboards]

To my knowledge, most fires are due to a short circuit otherwise "shorted", bad cells, punctured cells, bad bms.

Short circuit being the most easiest to make a mistake on. Basically, your positive and negative wires should not to create a short circuit. Meaning the two end points. As soon as these touch it will instantly start a fire.

This means to be safe all wires which are exposed should be wrapped in electrical tape. At least that's what I think. I'm no EE.

http://en.wikipedia.org/wiki/Short_circuit

 

[dnmun]

To my knowledge, most fires are due to a short circuit otherwise "shorted", bad cells, punctured cells, bad bms.

Short circuit being the most easiest to make a mistake on. Basically, your positive and negative wires should not to create a short circuit. Meaning the two end points. As soon as these touch it will instantly start a fire.

This means to be safe all wires which are exposed should be wrapped in electrical tape. At least that's what I think. I'm no EE.

http://en.wikipedia.org/wiki/Short_circuit

i know of no fires started by punctured pouches or a bad BMS.

the problem with this design is exactly what i said before. i don't understand why he has to ask for comments.

for some stupid reason, which is beyond me, the guy who designed the battery pack has used large 12AWG conductors for the parallel connectors of the 6 lipo packs. the conductors run across the battery in almost direct contact to each other. so when one wire contacts the adjacent wire it will instantly release the entire contents of lipo cells into the short. 4.2Vx6Ahx6=151.2Wh of power. about 500 btu. i get about 5k btu for every pound of wood i burn in my wood stove so this is about the same amount of heat as burning around 2 ozs of wood. instantly.

the tabs on top of the lipo pack are normally taped down with kapton tape to prevent the sense wires from shorting but the guy who designed this has pulled the tabs up and then soldered this huge conductor onto the tabs. another stupid idea.

it almost seems like an adolescent just decided that it looked like the right thing to do but has absolutely no experience.

if a professional engineer did this then the lawyers would have no problem winning a case against him for the loss of a 48 unit apartment building that burns to the ground in a fire caused by this horrible design.

i guess if you are 16 years old the jury would think differently. but i doubt it.

 

[torqueboards]

Cool. Thanks for the knowledge dnmun