lol at the MOQ of $1
Amazing deal: $1.25 for A123 2.5Ah 50A 26650 cells:
They are as heavy as a regular 21700 cell, and are 5mm thicker but 5mm shorter. so pretty much a 1:1 swap for most decks, and LiFePO4, thus much longer lifetime.
Better deal: $0.97/cell shipped
https://www.ebay.com/itm/2-used-40V-36V-block-of-96-Cells-3-2v-LiFePO4-26650-battery-rechargeable-12s8p/283217146077?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
edit: also, there is a regular deals thread, no reason to keep this BF thread aliveā¦
Deal above you is for the m1b cells 2500mah vs m1a 2300mah.
These cells are great for 15s! 
Whoops, pulled the wrong one up. $1.15/cell.
Their origin is also different - used in electric bus vs Hospital UPS. Iād prefer going with the safer option.
Seems like an odd deduction to make considering you have no clue what they were actually used for. But you do you.
May be personal, but I trust the guys at Batteryhookup more than a random ebay seller.
i just dont like their website.
Looks like a 12 year old made it in 2003.
All caps descriptions too on everything. smh
WHAT ARE YOU TAKING ABOUT THIS IS A TOTALLY NORMAL WAY TO TYPE THERE IS NOTHING TO BE CONFUSED ABOUT
I think it gives a sense of urgency when shopping like oh I better pick these up in a hurry this guyās hustling.
thx for reading my TED TALK
Who is Ted and why does he talks so much?
Agreed. Their stuff works though.
I paid about $9/cell for my m1b new. Paid about $6/cell for 100 m1a. This price is great even if used and need unwelding. A123 easily get 1000 cycles. 4s2p can jump start a car
Those cells do look interesting and apparently they will ship here for a reasonable price.
Do you use those in a skateboard? From what i read they are kinda heavy for the capacity, any other drawbacks compared to 20700 liion cells?
Low sag, high cycle life, better in temperature extremes, generally more stable.
Boosted gets away w/ a 12s1p. I think quite a few more will fit nicely in a hummie deck. Probably 12S3P or 17-18S2P.
Like in tropical heat? We donāt get really crazy temp probably around 38-40C during the hottest season.
As for range I thought boostedās was shit, isnāt it?
Iād like to get like 20km so I can go to the hardware store and come back home on a charge. But I live on a hill and I am going for 8ā pneumatics.
Should have said better in the cold, I donāt know how their high temp properties differ from other cells. Having higher discharge though, Iād expect that to be less of a factor.
Less sag means slightly more range. 7mi out of a new boosted is pretty impressive for 2.5ah imo. And I wouldnāt plan on only running 1p on anything except maybe some hubs.
Shit range because of 1p, but excellent ampacity per p group
There are a lot of myths about how these can do 60/70/75a continuous, but mooch has rated them at 40a continuous (if I remember correctly) as the heat generated from high loads is āsignificantly detrimentalā to overall cycle count per cell
I think if you stuck with these cells and put them in a 3p config with dual motors that draw 25a each as batt max you could have a fairly low sag board thatās got acceptable range, albeit with a slightly chunkier enclosure
That makes sense.
25a each is it to maximize range? In 3p and 40a cont per cell I could set double that right? Donāt know much about that science voodoo
.
3p of the cells should net you around 150a max, if not a little bit more. So if you want to ride it like you stole it, 75a batt max⦠But thatās pretty well above the capabilities of non vesc 6 vescs
I said 25a per motor as that seems like a fairly good number for most people, and it helps your battery not sag too hard. Thereās also something to be said about lowering sag to achieve the most āridableā miles. My old space cell should have netted me 20+ miles, but by using all 80a available, I barely got 7 āfunā miles, and an additional 3 or 4 miles in ālimp modeā