Beginners Guide to Processing 18650 Cells | Cell Database


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Where is everyone buying there solder from?
#1
https://www.radioshack.com/products/rosi...der-8-0-oz
$1.59 per ounce and its local



http://www.ebay.com/itm/New-100g-63-37-T...hPmrG3kJxw

dollar an ounce
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#2
I needed some yesterday and my local electronics supply was $45 CAD for 1lb roll
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#3
Local store here. I dont use much solder in total so its worth it.
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#4
I use Worthington Sterling Lead-Free 1lb Rolls. You can buy it in Lowe's, but I found someone on eBay selling several roles at once for half the price of the stores. Guess he just wanted to get rid of it. It's lead-free and flux-free, which is great because you can pick your own electronics flux and only use the amount you need.
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#5
Has anyone tried the stuff from china?
I wonder if it melts at the proper temp.
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#6
(08-10-2017, 08:51 PM)1958 greyhound Wrote: Has anyone tried the stuff from china?
I wonder if it melts at the proper temp.

I personally wouldn't trust anything from China. I already have an entire bank of batteries covered in corrosion because I used the wrong solder in the beginning. I wouldn't want to chance it with Chinese solder.
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#7
(08-10-2017, 05:51 PM)mike Wrote: I use Worthington Sterling Lead-Free 1lb Rolls. You can buy it in Lowe's, but I found someone on eBay selling several roles at once for half the price of the stores. Guess he just wanted to get rid of it. It's lead-free and flux-free, which is great because you can pick your own electronics flux and only use the amount you need.

I've only every used rosin core solder.  If I chose to use lead free, what flux would you suggest for 18650 style work?  Any diameter of solder more suitable?

sorry...not intending to hijack the thread.
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#8
This is the flux I use. It's fantastic. I bought this pen to test thinking I would buy a bigger bottle/refillable pen next time, but it never runs out... I soldered over 2000 cells with it, including positive, negative, and bus bar, and there's still a lot left when I shake it. Don't think it's ever going to run out. Lol.
http://amzn.to/2fwjXQi
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#9
(08-10-2017, 08:51 PM)1958 greyhound Wrote: Has anyone tried the stuff from china?
I wonder if it melts at the proper temp.

I'm using this. Claims to be non corrosive. Works as well as anything I've bought locally (just about everything locally has made in China printed on it anyway).

https://www.banggood.com/500g-1_5mm-Flux...ds=myorder


I soldered 100 cells with it 2 months ago and there's no sign of corrosion yet FWIW.
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#10
Which type of solder are we each using? 60/40, 63/37 or one of the many lead free types.

I was thinking of going for 63/37, for no reason other than its a true eutectic alloy. Does anyone know of a more scientific reason for making a solder type choice for applying to 18650 terminals?
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