The battery builders club

Since you seem committed to this and not very sure of what to do, Very carefully cut the connections from the board to the cells. Outside in an open fire friendly space. Small snips, they can’t touch anything else.
Wear a glove and eye protection.

Good luck. Why are you doing this?

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Yeah buddy that’s a bad dangerous joint. Like marihwana and the war on drugs.

Single question: did you use any rosin flux? (Aside from that which may be cored in the solder for the cynical)

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nobody needs danger whana!
yeh i did put flux on both wires, i think the main issue was not enough heat as the solder didn’t flow into both wires, new iron on the way and more practice

Solder is your thermal conductor to get heat from the iron onto the wire. Get a pool on the 12g and heat that.

Solder will draw towards heat, so ideally, get a little started on top around the 16g intersect and pre heat the 12g, let some draw into the 12g. Then a small amount of solder on the opposite side of the 12g, the back, and heat there. You can watch the solder on top pull down into the 12g.

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awesome, thanks!

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Relevant post, ‘cause we are finally going to stuff some SPIM08HP’s in a board.

The 500W soldering iron is to warm up the laboratory.

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Is this design the one on thingiverse? I don’t recall being able to print the standoffs or positive shields?

What config are you planning on running? I’m really hoping these are useful in 1P w/o horrendous sag… but you could probably fit 2P if you’re creative and want to go more than 4-5mi while pumpin’ juice.

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Awesome, I want to build something with one just like it one day

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I’m planning on 12S2P and 20S2P

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It’s going with my single drive 5065 and Akasha wheels under a nice bamboo deck and 9" Cals…it’s adorable

Soon I can put the enclosure together, no more duct tape and seran wrap

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Yes it’s the same one on thinkiverse. The positive shields could be printed. I ordered some standoff but it will not be here for another week so I decided to print some. Printing the standoff with PETG with no fan turned out to be pretty good.

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Interesting! Please post some pictures; I’m curious about the standoffs holding up as the thread on the screws are pretty fine

3300 posts later…

yes… it took days… but I read almost all of this thread… and I like it… but may I add an adjunct to this thread that lists respected sources for obtaining materials for battery building?

I’m willing to add a wiki or monitor a thread for USA based builders of batteries if youze guys will help get it started,

good idea or no?

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413

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I like it.
as long as someone maintains it, sometimes vendors go belly up or loose community trust
:+1:

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They sag about 2.5v at 150A, they need a second parallel to distribute current :(, good for go-carts and utility vehicles but too large for esk8 methinks.

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Anybody have a 26mm insulator ring source in US that has under a month ship times? @Skyart possibly?

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Shoot you should have told me you need some, just pay shipping il send you 40 of em tommorow.

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