Acido
June 29, 2019, 8:22pm
1
Hey guys, I wanted to make a new thread with nicer text and pictures than the last ones on the original forum so here it is
I have been making battery packs for almost 2 years now, I have made around 50 of them by now and there have been no problems what so ever
Im offering a full service:
Gluing the p groups together
Welding on 10x0.2mm pure nickel strip
Connecting p groups in series
Connecting a bms
Adding a bunch of insulation
Adding wire to help with the current
Heatshrinking the pack
Also offering a partial service
Welding the p groups only
or
Welding on tabs for the pcb
Or what ever else you need that’s related with batteries like balancing etc
Description of my process
Cells are glued with hot glue
Positive terminal is insulated with fishpaper rings
Nickel strip with cut off edges is welded on the p groups
P groups are connected in series as in this diagram
More fishpaper insulation is added between p groups
The p groups are then glued together so they can not move/rub aggainst each other from vibrations
65mm wide fishpaper is then glued on top of the cells and balance wires are laid out on it and glued to it
What cells do I use?
I can use any cell that suits your build, or budget.
If you are not sure which to pick, I can help you out decide.
Where are the cells sourced from?
The cells are ordered from Nkon /Fogstar only.
You can also send me your own cells.
If you are interested whats my welding setup
its a kWeld spot welder with 2x kCap supercapacitors to provide more amps than you can imagine
17 Likes
Nice, never enough battery builder !
4 Likes
Is it possible for you to install a BMS for a fee? I shorted mine while trying to solder on the wires, so I am kind of scared to do it again.
good service. have you had any problems shipping batteries through europe?
Acido
June 30, 2019, 9:10am
5
No, I have never had any problems, GLS is pretty reliable
@Yungdaff sure, I will send you a message
Acido:
Cells are glued with hot glue
Positive terminal is insulated with fishpaper rings
Nickel strip with cut off edges is welded on the p groups
P groups are connected in series as in this diagram
More fishpaper insulation is added between p groups
The p groups are then glued together so they can not move/rub aggainst each other from vibrations
65mm wide fishpaper is then glued on top of the cells and balance wires are laid out on it and glued to it
It’s really nice to see that you take safety so seriously. You can never have too much fishpaper/insulation when building a pack. Do you also try not to cross balance wires?
Can recommend @Acido
He is building all Bioboards batterys for EU.
All packs have been perfect
21 Likes
May I ask how you check that? They come with clear heat shrink?
Acido
July 1, 2019, 4:10pm
9
They come in blue heat shrink, if a customer wants to check the battery, I can provide extra heatshrink so they can wrap the battery again themselves
2 Likes
Good job bro, keep up the good work do I see you in Paris?
1 Like
Andy87
July 1, 2019, 4:19pm
11
Was no offense, just was interested how @mackann back up his quality statement.
2 Likes
Acido
July 1, 2019, 4:21pm
12
Thanks, I would really like to go to a big group ride or any ESK8 event but Its out of my budget at the moment and Im not allowed to fly on an airplane for the next 2 months anyways
Maybe next time
Normally next year I am going to Croatia. When I am in your neighbourhood we can do a ride
Acido
October 4, 2019, 4:06pm
15
All orders are finished, line is more or less empty so if you want a battery you can get it pretty fast
1 Like
No prices in the OP? How much do you charge to make parallel packs of 4p?
Anubis
October 4, 2019, 4:45pm
17
20e per p group + bms + materials (When I’m providing him the cells) as a guestimation.
@Acido can you confirm.
Whats the cost to do this , a 4p pack.
Acido
October 5, 2019, 7:25am
19
That does not requiere much work, I guess 30€ / parts is fair
1 Like
Chaki
February 16, 2020, 10:09am
29
Hi interested in some p groups. U said Nkon only but that was e few mounts ago. I was thinking Fogstar the battery’s are almost half-price.