smart fortwo ED HV Battery re-purpose - FAIL? - Smart Car Forums
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post #1 of 5 (permalink) Old 03-17-2019, 12:35 PM Thread Starter
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smart fortwo ED HV Battery re-purpose - FAIL?

For those looking to create a power wall - proceed with caution . . .

https://youtu.be/zMb_P7Vxd3I

Then check out Shawn Crockett's HV smart battery adventures . . .

https://youtu.be/8oXilzVxiBQ

https://youtu.be/YYxkB8KliZw
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post #2 of 5 (permalink) Old 03-17-2019, 01:17 PM
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Thanks - interesting to see what the battery actually looks like.

Len
2014 EV Coupe 17,000 miles
2014 EV Cabriolet 10,500 miles
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post #3 of 5 (permalink) Old 03-19-2019, 10:11 PM
 
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In the last video, how could a 24V charger possibly charge a module that would be at least 80 volts even when virtually dead (i.e. 2.5 volts per cell)? I'm pretty sure that like most lithium battery packs, the pack is permanently disabled by the BMS if any cell falls below a certain voltage because recharging an over-discharged cobalt-based lithium ion (like LNM in the Smart) cell can produce a very impressive fire.
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post #4 of 5 (permalink) Old 03-21-2019, 04:23 PM
 
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So they all bought bricked batteries, thought they would magically come to life, and then were disappointed after dismantling and finding out they are not magicians and can't bring them back to life.
It was cool seeing what the battery looks like.
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post #5 of 5 (permalink) Old 03-21-2019, 09:28 PM
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Very cool to see the inside of the battery!

I wouldn't use bricked and shorted HV EV batteries to power my home...it kinda just sounds like you're settling yourself up for a bad fire.
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