Hailong pack build, 13s4p Samsung 30Q

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Overclocker   1 kW

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Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 04 2017 10:36pm

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This is a slim case but I'll be using this pack w/ a 45A controller which needs a bigger BMS than would normally fit. So some surgery is needed. I also decided not to use the 52-cell carrier to create more space

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Section removed to create a flat surface. That's white PVC bonded to the Hailong w/ PVC cement. The Hailong seems to be ABS so it should be a strong bond.

In progress...

Empty case: https://www.aliexpress.com/item/Free-Sh ... 12527.html

BMS: https://www.aliexpress.com/item/Electri ... 13150.html
Last edited by Overclocker on Apr 12 2017 9:23am, edited 1 time in total.

ePassionHomebrew   10 µW

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by ePassionHomebrew » Apr 06 2017 6:19am

Good luck with the build mate. May I ask where did you source the empty Hailong case from?

redilast   1 kW

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by redilast » Apr 08 2017 12:23am

ePassionHomebrew wrote:Good luck with the build mate. May I ask where did you source the empty Hailong case from?
Probably aliexpress. Like <$40 for the case shipped i think.

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 12 2017 7:04am

https://www.aliexpress.com/item/Free-Sh ... 12527.html

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i'm trying a new end terminal design. the center part is thicker nickel (which i can't weld directly onto the cells)

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 12 2017 9:23am

40A test:

Image

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by teslanv » Apr 12 2017 9:47am

I like that load tester. - Looks home made. What kind of resistor coils did you use?
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Re: Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 12 2017 9:52am

teslanv wrote:I like that load tester. - Looks home made. What kind of resistor coils did you use?
nichrome wire on aluminum angle bar

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by kocetoMR » Apr 12 2017 12:47pm

Overclocker wrote:
teslanv wrote:I like that load tester. - Looks home made. What kind of resistor coils did you use?
nichrome wire on aluminum angle bar
Can you give us more info and pics about load tester. :shock:
How thick is Nichrome,,how many ohms is one coil?
what kind of spot welder use?

vex_zg   100 W

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by vex_zg » Apr 13 2017 6:12am

Are you saying that nickel is glowing hot at 40A? At 5A my .2mm x 10mm nickel was basically room temperature.

BeckRFuture   1 µW

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by BeckRFuture » Apr 13 2017 8:59am

Man that pack looks so clean. Best wishes on it.

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fechter   100 GW

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by fechter » Apr 13 2017 9:13am

Nice job with the nickel strips. That's a really good layout.

You could toast marshmallows while doing that load test :wink:

Did the cells get hot doing that?
"One test is worth a thousand opinions"

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 13 2017 11:13am

kocetoMR wrote:
Overclocker wrote:
teslanv wrote:I like that load tester. - Looks home made. What kind of resistor coils did you use?
nichrome wire on aluminum angle bar
Can you give us more info and pics about load tester. :shock:
How thick is Nichrome,,how many ohms is one coil?
what kind of spot welder use?
0.8mm nichrome. just play w/ different lengths to get the desired results. if too long the resistance is too high and you'll need to use too many in parallel. but if too short the nichrome overheats and goes limp

JP Welder by riba

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Re: Hailong pack build, 13s4p Samsung 30Q

Post by Overclocker » Apr 13 2017 11:18am

fechter wrote:Nice job with the nickel strips. That's a really good layout.

You could toast marshmallows while doing that load test :wink:

Did the cells get hot doing that?

i made a burrito for dinner. was really tempting to use it to grill the tortilla :)

i only ran it at 2000w for a couple of minutes, just to check for hotspots in the nickel


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Re: Hailong pack build, 13s4p Samsung 30Q

Post by sacko » Mar 12 2018 10:07am

Excellent looking build. Has the case held up?

There seems to be a few stories of the Hailong case breaking etc. I have still ordered one though...

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