Random Bits 0106: Harvesting 18650 cells, 48v Solar Charger

music: Jersey Devil

[serenatyvfr]

I am a decabled man in uk and I have got to say very well done I have whacked your videos from the start and you have come along way and inspired so many people to make ther Owen battery pack and other projects including myself you have also done well in getting a good job on your Owen merit and and made a big move as well so I thought I would just give you a very very well done and say the world needs more people like you keep up the good work and looking forward to you city car

[jerrylee]

266 Cells Cost about $60?
Where did you Get that Laptop Batteries?

[ShanLiuGBM]

You can buy stuff from the recycle centers???

[rcoym]

where are some good places to source old laptop batteries? sorry if i missed this

[byronrafnson]

I am very new at this and looking for some help. Can you tell me if in the picture you posted that shows 6 rows of 12 cells in parallel, assuming 3ah per cell, would produce 216ah and assuming 4.2v per cell, would produce 25.2v as shown in your diagram. It looks like you posted the diagram in 2013. It talks about 6 of these packs in series. Then, for my project, if I built a pack with 3 rows of 5 cells parallel, assuming 2ah per cell, would produce 30 ah and assuming 4v per cell, would produce 12v. If this is accurate, then I need to understand exactly how to install the wiring to the power outlet and balancing wiring. This is intended for a golf push cart. Am I on the right track here?? Any advice would be appreciated. Byron Rafnson

[robviolin]

Have fun with your ev. Please tell us where you buy your batteries. I need to buy about 150 - 18650 batteries for my electric riding mower.

[NoAnchorTV]

Where have you had the best luck finding laptop batteries to rip apart?

[gharvey]

I've subscribed to your channel and have learned so much from them. Thank you! I am working on a battery pack for electric bicycle. I have approximately 90 seemingly good cells so far, although I have yet to test the capacity of them all. My end goal is a 60v 20ah pack (16s10p). Quick question for you: When calculating what the total amp hours of my pack will be, do I take an average of the individual cells capacity, or do I go by the weakest link? Also, could you recommend a good source for used laptop batteries? Most of what I have I've obtained from ebay, but I've heard battery repair shops and electronic stores will sometimes give them away. Wondering your experience with this. Thanks again!

[Deqster]

I had the same though about the strips... "maybe they are worth something later". I plan on building packs using solid copper cable I get from "pump wire". It's a 4 strand 12-guage twisted wire you can get at the home center that doesn't have the extra outer coating to strip off. Great video, thanks again!

[zkiss]

Hi, I really enjoy your vids.
What is a good site to get used laptop batteries?
Thanks again!

[warriorbongo]

Rinoa, where do I go to get that motor conversion for your Schwinn trike (the one you use for about $250 and the new lower cost one you mention)? I am thinking about duplicating your E-trike efforts. Great videos! Keep up the good work!

[renzevenir]

Can I use a battery module from a laptop battery and turn it into balance charger?

[heyyodog]

dude! where yo time machine at? how do you find the time? was there a pattern to which pack had either questionable or dead ones? I mean I noticed you ordered packs that had 8, 9, 12. OH I almost forgot. Do you have any suggestions to wake them suckahs without a CC power supply?

[seanpain]

Where do you get all of these? I cant seem to find bulk amounts online, and im not sure what kind of place would have them. Where do you source them from?

[trevdogg]

I just got my imax b6 in the mail and am discharge testing cells now. What discharge amperage do you think it'd be smart to use? I remember you use 0.1amp discharge but in the real world I think I will be drawing faster than that since I will be putting these on an ebike. I am using 1.0 amp discharge for a single cell, do you think that's too high and my capacity rating will suffer as a result?

[AndyMcBlane]

Those orange cells at 12:05 are Sanyo UR18650ZT 2800mah @ 4.3v (Sanyo orange sleeve means 4.3v, and ring colour is capacity)

[grndragon]

on the battery packs you put together do you check the internal resistance?

[chrisnew]

wow where did you get all those battery for 60 dollar

[heyyodog]

Where did you get the batteries again?

[mcvinda]

Nice video :)  Can you tell me which law you refer to at about 13:35 in the video.  I have tried replaying the section but can't quite catch what you are saying.  I have tried internet searches for pewters law, putrids, law and a few other combinations with out success