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Building a 18650 pack. Can someone guide me, or direct me to a tutorial?


#1

So, I’ve had my Samsung 18650 batteries for a while now, just waiting for the rest of my board parts to come, but thought why not build it now, so it’s ready when I get everything else. Problem is I don’t know how to build a pack. I’ve searched the forums, but don’t really see any in depth guides (I could be looking in the wrong place, or be completely blind). I was talking to @barajabali about the configuration, and the materials and tools I need. He recommended a 10s4p, which is what I will be doing. I’m gonna pick up a soldering iron, 240V 60W. Will that be alright? I read somewhere I need a higher W or something like that. For my build, I have a Tacon Bigfoot 160 motor (245kv). I’ll need some wires and nickel strips (10mm recommended). Am I missing out on anything? Please do inform me if I am, I really have no idea how to.

Thanks in advance.


18650 Batteries
#2

There are quite a few videos on youtube. Have a look at Damien Rene, and look at ebike school on the internet. You should get an 80-100w iron.


#3

I see, will have to find an iron of that W around me.


#4

home depot


#5

60w will do the trick


#6

A higher wattage iron will heat the cells up less and do the job quicker. Less damage to the cells.


#7

make sure u get the proper solder i literally just finished my pack a few minutes ago and without the right solder it will be a bitch


#8

http://www.supercheapauto.com.au/online-store/products/SCA-Soldering-Iron-240V-80W.aspx?pid=17015#Recommendations

Would something like this do?


#9

A weller iron would probably work best but that one would be alright. Why aren’t you spot welding your batteries?


#10

yea but u could just go to home depot and pick one up


#11

probably the cost it gets expensive


#12

Don’t have access to one, unfortunately.

That solder should do though yes?


#13

yeah just be very careful and very quick to solder


#15

This is why I recommend at least a 240w and even better a 300w soldering gun.
I don’t even like to solder 10-12 gauge wire with less.
The higher the wattage the quicker you can make the bond and the less area is heated.


#16

my experience with those cheap soldering pencils that plug straight into the wall is that they overheat and burn up their tip every time and become useless.
A Weller solder gun will cost a bit more but it will be worth it. And they don’t burn up the tip.
http://www.ebay.com/itm/Apex-Tool-Group-D550-Dual-Heat-Professional-Soldering-Gun/331848108111?_trksid=p2141725.c100338.m3726&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20150313114020%26meid%3D66b62db336b3438caba6df0f02b39d08%26pid%3D100338%26rk%3D1%26rkt%3D16%26sd%3D291794153228


#17

Damn, in the US. I live in Australia.


#18

Should be able to find one in oz
Those wellers have been around a long time


#19

@Airmacx what configuration are you doing again? Can’t keep track these days. I will make you a diagram.


#20

Hm, well for my build I’m a bit confused. I was going to use Tacons motor which was 245kv,but was recommended not do 10s4p. But since I’ve been introduced to all the problems I could face with a higher kv motor, I’m going with enertions r-spec 3200W. Same thing 10s4p.


#21

The R-Spec 3200w sounds like a good choice for a single motor setup!
With 10s it should provide plenty of power.