Would a 10s5p Pack like this be possible?

ZachTetra · January 24, 2019, 1:39am

Opinions on this space efficient packing set-up? 12s4p

AlanZhou · January 24, 2019, 1:41am

ehhhhh that would be way to difficult to spot weld.

ZachTetra · January 24, 2019, 1:42am

I don’t have a spot welder so it doesn’t matter anyway…just gonna solder with 10/12 AWG because that’s all I can do

AlanZhou · January 24, 2019, 1:44am

hehe you’ll rethink that decision, solder just dosdent stick well trust me (i tried it with 30 hg2’s didnt go well) and it degrades the battery by a preety decent amount

and is that the new asus zerphrus?

ZachTetra · January 24, 2019, 1:44am

Nah…Scar I from costco

Already broke it skateboarding from class…I’m devastated

AlanZhou · January 24, 2019, 1:45am

Haha it seemed like it for a second.

Whatcha did?

ZachTetra · January 24, 2019, 1:47am

Banked a bit to hard to avoid the road and the wheels hopped over the asphalt/concrete transition…rolled onto my back and the corner of the case has a tiny crack to show for it…lost all 3 of my mechanical pencils so I had to use a normal pencil like a peasant

AlanZhou · January 24, 2019, 1:48am

oof hurts man, should just get a uni kuru toga, pencil those pencils are the shit.

ZachTetra · January 24, 2019, 1:50am

Ooh that’s a sexy pencil…love that 0.5mm

AlanZhou · January 24, 2019, 1:51am

i think they have a 0.3mm version i love those because they make my hand writing look good and i can write at any angle perfectly.

ZachTetra · January 24, 2019, 1:52am

Damn, I’m sold

AlanZhou · January 24, 2019, 1:56am

plus its a engineering marvel, it rotates the lead every time you press down so you’ll always have a sharp point…

i feel like a salesperson

b264 · January 24, 2019, 2:05am

Sure! Just make sure each P-group gets two of the brown cells and three of the green cells.

AlanZhou · January 24, 2019, 2:06am

That was a mock up… I never mix cells of different ages or different capacity.

I’m guessing 30q and 25r don’t work well together…

b264 · January 24, 2019, 2:07am

Soldering the cells does work; you don’t HAVE TO spot weld, but it’s highly, highly recommended

AlanZhou · January 24, 2019, 2:07am

I’ve tried but failed, solder just doesn’t sick as well as spot welds lol

b264 · January 24, 2019, 2:08am

They would work together if matched in the P-groups, but it’s not recommended and I’d make sure to have a very robust balancing system (at least 150mA) if you did that.

It’s far better to use the same make & model cells for the entire pack, and the same age cells.

ZachTetra · January 24, 2019, 2:08am

Did you rough up the surface or use flux paste?

AlanZhou · January 24, 2019, 2:09am

Yes… I used 100 grit sandpaper

@b264

The pack that I have at psychotiller is a 30q pack 10s4p around 3 discharge cycles so it would be fine to add 10 new cells.

b264 · January 24, 2019, 2:10am

With 3 discharge cycles it shouldn’t be a problem, as long as you have a BMS that balances the cells