Journal #8452

Posted 3 years ago2014-10-20 18:30:31 UTC
Captain Terror Captain Terrorwhen a man loves a woman
This guy has inspired me to try and start making my own Lithium-Ion Battery packs :)
[url=http://www.youtube.com/watch?v=Rjr2LKmhdVw]Here is the video I first watched to get inerested in it :)[/url]

I might invest in a used terminal welder, just becuase soldering cells scares the shit out of me.. ='(

Also a big plus, I get an unlimited amount of cells to play with due to failed battery packs at work; we throw them out, and normally when they fail, only 1-2 cells out of the pack(out of 8) are actually bad.

8 Comments

Commented 3 years ago2014-10-20 20:29:00 UTC Comment #56025
Its fairly simple to connect two cells, just practice a little.
The only down is that if you overheat it, which wont happen due to its thermal capacity (Only if you use an 100W iron or something), it can explode.

Used cells have decreased capacity.
Other than that, I don't see why you shouldn't make an battery powered bicycle :)
Commented 3 years ago2014-10-20 21:57:35 UTC Comment #56019
If you set the bike up with a super duper high voltage battery, and you set the wiring up to shock your leg muscles right, you wouldn't even need to put on a motor!
Commented 3 years ago2014-10-21 00:17:09 UTC Comment #56023
Ha! Curiously I've been thinking of making a dual battery for my cell phone. But then I'd have to 3D print a new back cover, because it normally only has room for 1 battery :P
Commented 3 years ago2014-10-21 02:14:52 UTC Comment #56020
That's an awesome idea Stu, do you have a thing maker yourself?

Stojkens: OK thanks. it makes sense, I know by using the batteries a lot, they get REALLY hot if you are cutting/drilling through metal.. Is there any particular type of solder iron you'd recommend for the best results?

TJB: That's a fucking good idea! :P
Commented 3 years ago2014-10-21 04:00:10 UTC Comment #56024
I don't have a thing maker, that's one of the main reasons I haven't really thought of it seriously. 3D print as a service is a bit expensive.
Commented 3 years ago2014-10-21 06:34:15 UTC Comment #56022
I will check this out later, I'm at work now. If it's interesting perhaps I will invest some money in buying a couple of cells from dx.com or some site that sells them cheaply.
Commented 3 years ago2014-10-21 09:01:03 UTC Comment #56026
When you pull a lot of current from the battery it can heat up, same goes for charging.
Use solder that has flux inside of it so it attaches to the metal easily, also use clean solder (don't buy dirty crap from 3rd person sellers) it is not expensive and you don't need more than 100g , 2mm diameter (darn TWHL not supporting unicode for diameter symbol >:( ).

Make sure there are no short circuits with the frame of the bicycle.
Commented 3 years ago2014-10-21 20:16:29 UTC Comment #56021
Awesome Stojke, thanky for the great tips! =PP

Striker: Nice, we can trade our failure stories back and forth ;)

Stu: I bet! I'm definitely gonna wait for them to improve more before I ever buy one.. They are awesome though; I find resin printers are particularly fascinating ;P

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