New PCBs from JLCPCB - Cell Connect with ACS712

Using PCBs as busbars.

Interested in my new garden workshop? Follow the entire build on Julian's Shednanigans:

(We each get £50)

#ElectronicsCreators

[lawrencerubanka]

Dear Father Christmas, Julian has been very good this year. Please put a nice nut driver set in his stocking this year.

Another excellent video! Thanks again Julian

[RambozoClown]

Now that JLCPCB has assembly service, is there an option to have them grind off the numbers on the chips for that authentic look?

[prduguid]

You could get rid of the plastic frames, then you can choose the spacings and create a single, much larger pcb per side covering all the cells. The pair of pcbs will be more than strong enough once all the cells are bolted on. The primary pcb can also hold your arduino.
As others have said fuses would be good, but how about temperature sensors.

[romancharak]

Hello Julian, you might want to protect you spanner with some heatshrink? For safety.

[GadgetAddict]

This project kind of reminds me of similar projects from Jehugarcia. You might want to check his channel out because you're going a similar route by the looks of things.

I'm enjoying this series 👍

[rpdom]

Very neat. With the two "sticking out" end boards you could use a hacksaw or dremel to remove almost half of the board that isn't being used to make it look a bit neater.

[NiHaoMike]

Would have been good to include an exposed pad on the lower middle for soldering link wires to other junction boards. Easy enough to work around after the fact using some sandpaper or a small chisel.

[fawleyrfc]

Are you going to draw the current off this pack from each row of cells and combine the leads rather than one connection and have the combining done through the PCBs?

[thelwq]

For more current capability - what about copper plates on that PCB and a temperature sensors on that sometime? :-)

[carloseduardocolpo]

if you use a board to connect the bottom ones put a pcb on top of the bottom ones instead of the link wires

[MiniLuv-]

Nice. For higher currents, you can stack multiple PCB's with an air gap between each, though the screws would need to be longer. I like this idea Julian....the old brain is ticking....I can hear it!

[TheEmbeddedHobbyist]

Nice to see a PCBWay ad during the JLCPCB board video. look like they look for key words to place ads.
No magic smoke! your getting too good Julian ;-)

[professormarky]

when I got some of those cells I got what looks like the original box with the manufacturers name and some information :)

[yrath]

How quaint, Julian still has a landline at 11:43 - the ring is different but somehow I picture him with a beige "Viscount" (the one with the orange memory buttons) ;-)

[MrBobWareham]

Dont forget your shake-proof washers will you, but the boards look good!

[KrzysztofC-]

Are you sure the outer boards will be able to handle the current? I assume the middle boards will be cold, but the outer ones will carry entire current coming out of the whole pack as the currents from all cells will add up.

[Soapy]

That heart stopping moment ...will they fit?

[vmoutsop]

Now you need some two post versions of the board so that they don't stick out the bottom of the pack.

[ecosta]

Cool stuff! I'm definitely going to use this idea in my own battery pack! But given how it takes a couple of weeks to receive stuff from JLCPCB, I think a less modular approach would be better at first (as in 4x2 instead of 2x2+wires) - then I would modularise as needed.

[RobertSzasz]

Are tin plated copper nuts and washers available?