52v 14s4p Hailong Case

Batteries, Chargers, and Battery Management Systems.
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sacko   10 kW

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52v 14s4p Hailong Case

Post by sacko » Mar 25 2018 1:37pm

Started with plans for a 13s4p battery build, but as I am going to have to glue the cells I may as well go to 14s4p.

I have seen the following of the Luna pack, but have not seen the other side.

Image

Before I copy the layout, could I check that it is the best design.

For 30amps max current (BBS HD) I am also planning to use 0.3mm 8mm nickel. Seem ok?

meaargee   10 µW

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Re: 52v 14s4p Hailong Case

Post by meaargee » Mar 25 2018 7:46pm

Just make sure everything will fit.
I used the smaller type Halong case (with no USB output), 13S4P with 30A BMS, 52x18650 cells glued were a neat fit with no room left.
My recycled cells were soldered ( :shock: for some), with no observable detriment to the pack.

sacko   10 kW

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Re: 52v 14s4p Hailong Case

Post by sacko » Mar 26 2018 4:27am

Thanks for the reply, much appreciated.

Any idea why the 8 cells on the left are together? I would have thought the 2 sets of cells in parallel would be alternating (Positive group + Negative group).

Something like this instead;

https://drive.google.com/file/d/1EVCqOK ... sp=sharing

mitoda   10 µW

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Re: 52v 14s4p Hailong Case

Post by mitoda » May 16 2018 12:24am

Hi, any luck building the pack?

I'm on the same project, harvested some cells from a geo orbital battery packs.

I also have a Luna Cycle 14s4p Panasonic GA hailong pack which I'm trying to copy. It looks like Luna changed the layout.

I've been having real hard time aligning the cells, tried hot glue but the space glue occupies, ends up adding up and the pack won't close.
Also, since cells were harvested, cannot lay them standing because pulling the nickel strips creates a bump on the ends.

Any thoughts?

Thanks
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sacko   10 kW

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Re: 52v 14s4p Hailong Case

Post by sacko » May 17 2018 10:18am

Mine is now complete, really happy with the outcome.

It is very tight though! Fitting the charger point, making sure it all closes once the lock is fitted is also a pain.

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tomjasz   1.21 GW

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Re: 52v 14s4p Hailong Case

Post by tomjasz » May 17 2018 2:23pm

mitoda wrote:
May 16 2018 12:24am
It looks like Luna changed the layout.

You mean the builder in China changed it or a new vendor in China is being used.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

mitoda   10 µW

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Re: 52v 14s4p Hailong Case

Post by mitoda » May 17 2018 7:56pm

tomjasz wrote:
May 17 2018 2:23pm
mitoda wrote:
May 16 2018 12:24am
It looks like Luna changed the layout.

You mean the builder in China changed it or a new vendor in China is being used.
hahaha, true, the people in China.
what layout did you end up using? just like the one you attached or the one in the picture on your first post?
I'm also trying to add it to my BBSHD, have 2 of these, only one battery for now.
how did you put all the batteries together? hot glue first or just spot welding 4 batteries together at a time? I find it really painful to keep all the batteries aligned

Thanks!

sacko   10 kW

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Re: 52v 14s4p Hailong Case

Post by sacko » May 18 2018 4:38am

I used the same layout as the image on the first page.

I used a wooden box which was square. I built the pack upside down.

Line all the 'Top' cells up in one row (15 of them), push the terminals up tight against the side. Do not add glue at this point!

Then, I start laying the next row, but add glue in the middle.

mitoda   10 µW

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Re: 52v 14s4p Hailong Case

Post by mitoda » May 22 2018 8:01pm

Did you do something like this?

if so you put the cells standing up on the box or laying down?

I'm thinking to solder connectors to load (motor) first before assembling the whole pack.

Thank you very much, this is helpful... I'm trying not to re-invent the wheel here! : )

where did yo buy the BMS from? I bought a couple, but they are longer than the one Luna uses.
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sacko   10 kW

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Re: 52v 14s4p Hailong Case

Post by sacko » May 23 2018 4:10am

That's it, 'row' 1 first. Lay the first row down.

Get the glue gun ready.

Start laying 'row 2' down put place glue in between first.

This is the BMS I bought. Doesn't matter how long the BMS is, you have about 20cm of room at the top of the box! :)

https://de.aliexpress.com/item/Free-shi ... 4c4doFhCtZ

mitoda   10 µW

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Re: 52v 14s4p Hailong Case

Post by mitoda » May 28 2018 1:44pm

Thanks for all your help. I ended up just aligning all the cells, divided by 3 groups (from left to right) each held by an elastic band and tape and proceeded to spot weld each cell.

Though all cells looked closed enough, I wasn't able to completely close the hailong plastic case, but good enough to put all screws in. I found particularly difficult to fit the charger side the case, the last positive end group seemed to touch the charger, so I had to do some trimming with a Dremmel. I also removed the metal plate from the BMS to have it fit.

The pack is useable, will this make me a seller... probably not.There are areas that look misaligned but good enough.

Did you experience something similar? if not, how did everything fit perfectly?

sacko   10 kW

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Re: 52v 14s4p Hailong Case

Post by sacko » May 29 2018 2:39pm

Yes.

If the case does not fit, take the lid off. At the back there are two screw posts. You can remove some of the material away from the top of the posts.

I also had to remove some of the material from the charger port.

If the cells are squeezed together tight enough prior to spot welding, you don't have any issues fitting the cells in. Practise...

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