I have a window
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my workshop doesnât really have windows, there is a roof and like 3 walls and one side open. Plus Iâd rather not touch the bomb when there is no screen for the countdown.
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I have a metal bucket kept next to my fire extinguisher, and the driveway since my workshop is attached to the garage.
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I should really invest in one of those ammo cans and some sandâŚ
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I was also thinking about going down to the beach to get some sand.
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Bucket of sand and a fire blanket if shit gets out of hand, is the usual strategy.
Youâre not going to stop it, just stop it from spreading
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Concrete floor + open garage door to kick the battery out of lol
Can you tell us exactly what happened so we can learn from your mistakes?
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Hello
Wondering if anyone has built a 12v battery for a motorbike? Was going to use lithium 3s12p 18650s
Unsure of what chemistry to use lipo or lithium seems lipo is the one thatâs used most commonly? Really unsure Any advice welcome
If this is going to be using the cold I would take a look at the a123 cells that hummie is selling
4s lifepo4 works the best for a lead acid like battery
The A123 cells are perfect for this
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Is this going to use some factory esc or be vesc based?
I use cells I had for about 6 years now. Pulled the tabs, I might have damaged the cells in the process but didnât think it was a big deal. I cleaned steel torn bits from the cells with a dremel.
I welded one side and it was fine, when I tried welding the other side, couldnât even get a good weld on the cell I started on the one in the middle started smoking and heating up. Than I ran and the Bengali fire started.
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I donât think so, maybe but it wasnât flat anymore that I remember.
I have a bunch of those cells I am considering throwing away
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LiFePO4 is probably the best chemistry to use - It has great burst power output (good for engine starting), long life, very safe, and good cold-weather performance.
The added capacity of li-ion isnât really needed, and it comes with drawbacks in all the other categories.
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YepâŚwarp core ejection sequence initiated 
+1 on this
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Have you ever been able to charge to past 48v?
I have the same bms on a 12s9p and the charger went green light at around 48v
No, been busy (and lazy) plan on this weekend.
I have another 2amp 12s charger Iâm going to swap the connector to with some xt60âs to see if that helps. If not Iâll take a look at the welds on P group #1 and of all looks dandy then I will replace the BMS.
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