oh yeah that doodle do…
I figured it was some temp sensors so the BMS could shut off or something but the power leads were kinda big.
No idea how they are hooked up or how to access where they lead.
unlikely those are ineffective/inefficient
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I’ll give it 12v see what happens
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see if you get temp readings on the other wires maybe.
it’s a peltier, battery side get cold, other side heats up,
works @ 12v 1.5a
and yeah the brown/wht and black/blue are the temp sensors
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I am stunned that they are using a TEC…so inefficient. I guess they did the math though and it works for their application.
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I would guess given it is supposed to be a standalone battery in a non-electric car that this is the only way to prevent low temperatures.
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it is, what if you reverse polarity on it? can you switch which sides cool/heat?
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Yes, as long as the other stuff involved (connections, air flow, etc.) are set up to deal with that. Could their setup do that? Switch polarity for all-season heating/cooling?
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if that’s how TECs work then I would assume so
ok trying reverse…
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it was herald as the world’s most advanced car battery or someshit so it seems like a feature they would add.
so advanced that they made it 48V instead of 12 just for fun,
our fun 
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I’ve done it with the TEC’s I’ve tested…very weird experience seeing it work.
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yep, heats battery side in reverse 
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Short time only unless the hot side has a sink of some type to shed the heat. Easy to overheat and destroy a TEC.
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Very cool
(no pun intended)
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made sense to me to make red/red blk/blk would do the safe temp thing in case someone had no idea what they were doing, and liked hooking up random wires in a battery.
You didn’t have the cells attached at all so that’s very safe.
@Scepterr so you gonna try to use it for extra cooling? lmao
might be a waste of energy
so cool tho!
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wonder how many miles these packs have seen.
thought I had already posted this info
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nah not gonna be using it, but I do have an idea in the back of my head for a seat heater/cooler for the bike, already installing a heat pad under the seat for the winter
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Trying to figure out how to use this battery outside the metal enclosure for reduced size and weight.
Need a waterproof box that isn’t too big