Ok @Hummie I give up. What’s that thing in your avatar? Looks kinda like this:
And also like this:
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OTC 1266 Adjustable Gland Nut Wrench https://www.amazon.com/dp/B000X8EGZE/ref=cm_sw_r_cp_apa_i_zZswBb5690434
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Id like to believe its the first photo lol
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Damn thanks man it’s been killing me. Lol I knew he was nuts 
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actually its a smiley dinosaur. yuk. luckily dont need it anymore with these new motors. before it was that tool and like a foot and a half long socket wrench and an arbor press with someone standing on it to replace bearings.
syched to build this next deck up! if anyone wants one I got a couple. but we’re back to 120$ with shipping! sale over. no longer desperate for money.
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Anyone done a Double Stack battery on one of these decks?
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Planning one but the deck and batteries have yet to ship.
Scroll up, there was at least one stagger stack pack
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how tf do you use it?
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go to sleep hummie
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its a glorified two pin spanner with a square spot for a socket wrench so you can put a lot of leverage on it.
someone get these http://evcomponents.com/lifepo4-cell/headway-38120s-10ah-lifepo4-cell.html 14s n make a cool bracket that bolts to the board. fuck the bms as these are indestructable. and charge at 10amps with this https://www.amazon.com/Adjustable-Converter-110V-220V-Switching-Transformer/dp/B0777MH681/ref=sr_1_3?s=electronics&ie=UTF8&qid=1532936064&sr=1-3&keywords=48v+adjustable+power+supply&dpID=51jlylEpA7L&preST=SY300_QL70&dpSrc=srch tempting and cheap.
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got ya, always wondered what that was, thanks for explaining it.
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I offer my build as tribute but I can’t help with the brackets sadly 
And here I am worry about going 12s lol
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Theyre lifepo and have lower voltage from what hummie tells me which is why the 14s from my understanding haha
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I’m thinking 15s in that chemistry.
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Honestly not sure if it matters for charging lifepo4’s but I’ve used that power supply for driving large high-watt LED displays, and it’s not CC. Had to use constant current drivers between it and the LEDs or they’d start frying pretty quick. The LED emitters I was using are good from ~500ma to about 1200ma, and I set the voltage to drive 700ma (nominal for those emitters) but the variation in the output would start killing emitters in a couple of days of ~8hr/day usage. Cheap little current drivers between the power supply and the LED strings fixed the problem and those signs have been running over a year now without losing a single emitter.
Again, not sure if that matters at all for charging the lifepo4’s but just an FYI about that PS.
Cheers!
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cc and cv are not important for cells as long as the power supply isnt putting more in current than the cells can take.
Ive been reading about charging cells and how a cell’s stated charge rate is misleading and you can likely put much more in at it’s lowest state of charge, and sometimes its good to put way more current than rated for smoothing growing dendrites and increased capacity as well as making the cell less likely to have an internal short.
this one does seem to be able to do a constant current and voltage manually. but havent tried this one https://www.amazon.com/Adjustable-Converter-Switching-Regulator-Transformer/dp/B07DZW79KM/ref=sr_1_7?ie=UTF8&qid=1532843332&sr=8-7&keywords=48v+adjustable+power+supply
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yea i thought about this. they’re too large so it’ll have to be in 1p.
jehu did a test on these, they sag like a mf.
using a 4s1p @ 13.3v, 20a draw sagged down to 12.5v, and at 80a sagged down to 10.75v.
so that’s 0.2v sag per cell at 20a, 0.65v at 80a per cell.
it might work, but not very energy dense either.
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