Beginners Guide to Processing 18650 Cells | Cell Database


Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
IFR 26650 Powerbank
#31
That's like using a sledge hammer for finish nailing! Of course it will work, but it's a pain in the ass! And so many other people have also done it this way and it blows my mind. It's because they really have no idea how to solder when they started. And that's totally cool, but as we move on and evolve, we learn to use the right tool for the job. I've also done ten of thousands of cells, but NEVER burned up 1 tip, never. And I don't hassle with it not getting the solder exactly where I need it, not the top being harder to solder than the bottom, and any of those other issues that occur when the tool is incorrect. I am not blasting everyone but I do want to help and those giant sledge hammer tools you guys use are insane. There for welding ships or melting I-beams or something... the Hakko I tagged is made by one the best and most reputable companies in the business and after you use it to build one pack, you'll toss that other torch, I promise. It also has a calibration mode so you can "over clock" it if you need too...which is rare.

https://www.amazon.com/gp/aw/d/B00ANZRT4...0766FG4V9I



Here mine on the bench. Came with free end cutters, and various tip sizes. Cutters are great for pack disasssemly. 

a

This one even has a heat gun and small power supply built in. Walmart website for $60. Not as good as the hakko but still a precision adjustable iron. The heat gun is for heat-shrink tube.

You get beautiful little pools of solder and the tip is tiny so you can put the solder exactly where you want it. And all within 2-3 secs of contact with the cells
Dennis Van Hoek likes this post
Reply


#32
I have a hako 60w station.

And that 300w is like using a piling driver, the 200w would be like a sledge.
Inverted 18650 and Dennis Van Hoek like this post
Reply
#33
didn't mean to high-jack the thread mate. my apologies and ill shut up.

nice build and looking forward the packs all wired up..

also where are you finding all the 26650's?
Dennis Van Hoek likes this post
Reply
#34
I was of the grid for a bit..

Thanks for the soldering input guys!

I have several soldering Iron stations available since my younger brother and dad are sparky's Wink
I was having problem soldering the positive side with a 50W Iron.

I din't dare to touch the cells with the 300W thing.
The 300W is really good for soldering big terminal boots and stuff.

The 26650 cell's come from tactical ropeclimbing powerascenders:
http://www.tags-systems.com/site/images/slider/12.jpg
Greetz Dennis

http://www.verticallife.nl

Current Of-grit setup
5 230Wp canadian Solar panels
2 Voltmaster 270Ah 12V Battery's
1 Outback flexmax80
1 Phoenix 3000 inverter
Reply
#35
Help Rolleyes

I have solder problems..
When soldering 18650 with my 60W iron it goes like dream.(no need of the 300W iron)
touch and go..




But the 26650's from A123 are a pain to solder. Even after wirebrusing,sandpaper and grinding the solder is not "flowing".
I used a lot of additional flux on this one after guiding this is the best i get..



It sort of bonds on the old spotweld hole.

For comparison I soldered some 18650 and an other type pf 26650 with the same iron and solder with flux.
first one: 26650 with loads of flux din't even bond.
second one: 26650 after grinding and wire brushing pre fluxed, 5 sec adding loads of flux-solder
third one: other brand 26650 only some flux solder touch and go 2 sec
fourth one: 18650 pre soldered and some flux solder touch and go
fifth one: 18650 some flux wire touch and go 2 sec


Any advice beside of spot welding?

cheers
Greetz Dennis

http://www.verticallife.nl

Current Of-grit setup
5 230Wp canadian Solar panels
2 Voltmaster 270Ah 12V Battery's
1 Outback flexmax80
1 Phoenix 3000 inverter
Reply
#36
Yup you need more mass in the iron, the battery is stealing the heat and your getting cold joints.

Looks like the cells are double layered.
Dennis Van Hoek likes this post
Reply
#37
Have you tried using your 300w iron? 60w on those may not be enough and they contain alot more metal and surface to get rid of heat so you need several more times heat than on 18650. I have done some 26650 and they need more work.
Dennis Van Hoek likes this post
Follow me! >> YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcomming: 14S 18650~30kWh | Automatic trip breakers, and alot more
Reply
#38
Some more advice needed  Wink

I 'm not sure what fuse wire to get.
The cell's are able to deliver 50A for 3 minutes I'm not sure If I ever want them to deliver that much..
So the question is how many A fuse wire to use and wy would you use that amount of A? in this case not to protect the cell when your under 50A.. Cool

(08-09-2017, 08:14 PM)daromer Wrote: Have you tried using your 300w iron? 60w on those may not be enough and they contain alot more metal and surface to get rid of heat so you need several more times heat than on 18650. I have done some 26650 and they need more work.

Yes I tryet the 300W and it looks just as bad it needs a lot of time to make the solder flow..THe other 26650 cell's I have don't have any problem flowing.. And I only dear to solder dead cells for the moment with the 300W unit...

(08-09-2017, 08:13 PM)1958 greyhound Wrote: Yup you need more mass in the iron, the battery is stealing the heat and your getting cold joints.

Looks like the cells are double layered.

The 300W unit is not much better. 
I need to make contact a long time...

The double layer should help containing the heat from my point of view?..
Greetz Dennis

http://www.verticallife.nl

Current Of-grit setup
5 230Wp canadian Solar panels
2 Voltmaster 270Ah 12V Battery's
1 Outback flexmax80
1 Phoenix 3000 inverter
Reply
#39
The 300 watt takes for ever to warm up, did you measure the tip temp before you started ?

On cells that are a pain, I don't just hold the tip on the cell,
Wait for the tip to warm all the way up, hold on the cell for 3-5 seconds, lift for 5 seconds and repeat till solder flows.
Dennis Van Hoek likes this post
Reply
#40
Either you dont get enough heat transfered or the cells have a surface that isnt solderable.

The ones i used just needed alot of heat and they worked but i have had cells almost impossible to heat. they needed alot of solder with alot of flux to flow.

Choose fuse wire after what you are going to use from them and not what the cells are capable of. WIth that current you dont need much of fuse wire at all Smile You can just use thick wire.
Dennis Van Hoek likes this post
Follow me! >> YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcomming: 14S 18650~30kWh | Automatic trip breakers, and alot more
Reply


Who read this thread?
100 User(s) read this thread:
hbpowerwall (08-26-2017, 11:30 PM), Chickey (07-13-2017, 07:03 AM), daromer (09-11-2017, 08:43 AM), mike (08-04-2017, 02:40 PM), BigBen (08-27-2017, 04:13 AM), station240 (09-13-2017, 01:37 PM), NiVa (07-16-2017, 02:17 AM), Lux_Gamer (09-16-2017, 05:17 PM), owitte (08-10-2017, 07:06 AM), opus40 (08-02-2017, 06:34 AM), Majorphill (07-14-2017, 04:44 AM), riveracc1 (08-20-2017, 03:17 AM), coolfx (08-28-2017, 11:54 AM), Herebus (08-02-2017, 02:17 AM), ruby2 (08-27-2017, 01:59 AM), Korishan (09-18-2017, 12:07 AM), A + A (09-11-2017, 02:47 PM), PAF (09-11-2017, 07:30 PM), whisperbot (09-10-2017, 06:55 AM), Wattsup (08-10-2017, 11:22 PM), Scepterr (07-22-2017, 09:03 PM), Tristan Timmer (08-03-2017, 03:00 AM), Frnandu Martiński (08-03-2017, 09:55 AM), egam (08-04-2017, 11:34 AM), Alec_J (08-13-2017, 05:43 PM), flight4900 (08-10-2017, 10:58 AM), Droid126 (08-03-2017, 02:16 PM), eAnic (07-12-2017, 01:52 PM), jdeadman (09-11-2017, 12:35 PM), 2146 (08-02-2017, 01:14 PM), wim (09-11-2017, 10:15 AM), wimpie007 (09-11-2017, 02:02 PM), frnandu (09-11-2017, 05:28 PM), melsom (07-23-2017, 08:02 PM), josearaujo10 (08-04-2017, 10:02 PM), typ49 (08-10-2017, 08:03 AM), KD0CAC (07-11-2017, 03:21 PM), The-J-Man (07-12-2017, 03:29 PM), Tommy Ng (08-23-2017, 01:47 AM), Jeremy Choy (08-04-2017, 07:18 PM), 1958 greyhound (08-26-2017, 08:18 PM), Abarth595 (08-07-2017, 07:29 PM), Quigibo27 (08-03-2017, 03:39 AM), kktuo (07-22-2017, 06:38 PM), neilmc (08-07-2017, 10:58 AM), Off Grid Power wall (09-12-2017, 10:10 AM), tbostjan (09-03-2017, 08:13 AM), kaits31 (09-07-2017, 10:14 AM), watts-on (09-11-2017, 08:36 AM), Dan Lim (08-09-2017, 11:43 PM), jesusangel (08-26-2017, 02:58 PM), BamBamsBatteries (08-13-2017, 12:17 AM), volvo09 (08-28-2017, 06:25 PM), Daggerzz (08-02-2017, 05:43 AM), alexcj (09-09-2017, 01:01 PM), Hanssing (09-11-2017, 06:46 PM), MetalFang (08-03-2017, 08:30 PM), Fredd (08-02-2017, 01:32 PM), IronSky (08-26-2017, 03:27 PM), Dicklinn (08-07-2017, 04:42 PM), DrkHrs13 (07-23-2017, 02:11 PM), silverse2m6 (07-11-2017, 11:09 AM), kot (07-12-2017, 07:41 PM), Arie Bal (08-03-2017, 02:00 PM), ismaildoganw (08-02-2017, 06:08 PM), kazbach (07-11-2017, 07:42 PM), Larry Tipton (08-03-2017, 02:56 PM), ltdorn (08-07-2017, 02:15 AM), Davel (08-16-2017, 09:31 AM), Stefaan De Ridder (09-11-2017, 09:14 AM), JohnC (09-06-2017, 10:11 PM), TomTinkerDIY (07-11-2017, 07:58 PM), Chiptosser (08-10-2017, 03:04 AM), Emmanuel Ory (08-02-2017, 05:09 AM), Chicken (09-11-2017, 12:38 PM), Power Up (07-15-2017, 07:13 AM), rainbowwarrior38 (09-22-2017, 09:26 AM), systemtm (08-04-2017, 06:00 PM), Inverted 18650 (08-04-2017, 05:57 PM), Lawcomleo (08-17-2017, 09:36 AM), Alan Amato (07-15-2017, 12:10 PM), BlueSwordM (08-26-2017, 07:45 PM), Piotr Dziel (08-23-2017, 05:26 PM), Johnny Stauersbøl (08-27-2017, 11:27 AM), Dennis Van Hoek (Yesterday, 04:27 PM), badamaspitty7777 (07-09-2017, 10:14 PM), alildabldo (07-14-2017, 02:26 AM), adr1an_id (07-10-2017, 06:48 AM), Happy Camper Homesteader (07-13-2017, 12:16 AM), brafi (08-12-2017, 09:24 PM), Stew Mohr (08-07-2017, 12:45 PM), Jesse Osborn (07-15-2017, 01:33 PM), Nitroghost (08-13-2017, 02:17 AM), John.Siler (08-03-2017, 12:20 PM), Jan Pieter van Zijst (08-27-2017, 11:34 AM), Terry (09-12-2017, 02:43 AM), N00bPwr (08-27-2017, 06:21 PM), Jimmy Home (07-31-2017, 06:19 AM), Eric Koshinsky (08-21-2017, 09:28 PM), colishere (08-07-2017, 01:53 PM)

Forum Jump:


Users browsing this thread: 1 Guest(s)