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

[@serenatyvfr]

Lol Watched

[@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!

[@rickevans7941]

I'm so glad I found your channel!!

[@AndyMcBlane]

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

[@Dusty1141]

Love your videos, cant wait to see the battery you end up with in your electric car. Keep posting!

[@RinoaL]

+Dusty1141 it should take me a while to get it going, but once i get cells testing it should go together nicely.

[@sylvanenergy]

You are fortunate to be able to access those batteries.

[@zkiss]

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

[@gharvey001]

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!

[@renzevenir4853]

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

[@lessopinion9707]

RE: Trolling motors, the one limitation that stands out to me is the ability to cool the motor as it is no longer going to be submersed in water. As I am machinist I can see cutting and modifying the housing to incorporate a fan powered by the motor itself or externally either/or with the addition of ventilation holes on the opposite end to draw air. Just a thought you might want to look into if you do I would look forward to seeing the video and would be happy to comment with any help I might be able to provide. Thanks again

[@MyPlayHouse]

I was in NewYork last year, and Harbor Freight and HomeDepot was on my list of sights to see,, we do have "copies" here,, but really fun to see them. This is a great video,, i have seen it three times,, i like the flow of it!

[@hilmialbums2692]

hey. i know you... server guys.

[@MyPlayHouse]

HI Hilmi Albums Ahh I am becoming to famous, or infamous :-)

[@hilmialbums2692]

My PlayHouse lol.

[@RinoaL]

have you been recognized IRL yet? out in silicon valley i would get recognized every few months by somebody. several times by coworkers. one time i was sitting in the lobby of 1 Infinite Loop waiting for my bike to charge and somebody walked up and told me "so you said to say hi if anybody saw you" and i was like "OMG yes i did!" and we had like a 45 minute conversation, it was really fun.

[@MyPlayHouse]

Rinoa Super-Genius No I have not been stopped on the street,, but I do have coworkers watching me. But by fare most of my viewers are not from here,, only 2,8% is Danish. But I have meet up with some subscribers and other YT'ers,, Meet with a very small Danish KZbinr last weekend while I was at the ComputerParty I told you about. He stopped by and we had a hour long chat. He has been making videos as long as me,, and is at 22 subscribers,,, He might be changing to English.

[@JN.0_o]

When you get your citi car are you planning on changing the throttle control over to semiconductor based PWM control? I would have thought relay based voltage control would be a bit hard on the first batteries in the string and I don't see it being suitable for Li-ion batteries.

[@RinoaL]

+ben hunter yeah perhaps, but with relay contactors for backup.

[@NoAnchorTV]

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

[@ezzbuttheyshouldntleavethe5529]

eBay and school throwouts seem to work for me, also helps if you have a friend in the e waste business!

[@Aleziss]

can't wait to see you starting to work on your car and these new battery packs...

[@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!

[@RinoaL]

+warriorbongo an ebay seller named xcerries or something.

[@rcoym1]

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

[@Mandurath]

Looking forward to the city car project. Have you considered 1" or 3/4" 16 gauge square tubing for the bike project rather than angle iron? Used making the frame of locost 7 replica's/clones etc of Lotus/Caterham 7's. Strong enough for that, should be enough for a bike and likely be easier to work with and some some weight. Of course, same problem you mentioned in another post is having to find a steel supplier. Any reason you don't pick up a small flux core welder or another from harbor freight? Have one of the older splatter boxes from them. The welds are not real pretty (mostly user caused on that part) and need cleaning due to the flux core welding spool but it does the job.

[@RinoaL]

+Mandurath if i was to buy a MIG i wouldnt buy it from harbor freight.

[@Mandurath]

+Rinoa Super-Genius Hehe, i wouldn't either for a nice mig welder, or arc for that matter. But their 100 buck flux core welder is ok for what it is. Know you know what your doing with the battery welder, and prefer more often than not to build stuff yourself. Keep on building, enjoy the vids.

[@brassassmonkey]

help please. what kind of batteries are the ones you get? I don't know what brand or model I should look for.

[@karzygijose]

How do you do a discharge test?

[@RodebertX]

I want to make a solar charger for a 7V Motor/Battery Combo(I have a garden on a shack-roof that need watering). Do i need a charge controller? How do I make one?

[@RinoaL]

+der Robert yeah its best to have atleast a voltage regulator to make sure the lithium cells dont get overhcarged. but if you can find a lithium power tool battery it should have the charging circuit and everything inside already. then you just provide it with a voltage from your panels.

[@grndragon2443]

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

[@seanpain4]

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?

[@byronrafnson5856]

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

[@trevdogg100]

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?

[@oleglyan]

I find that Li-ion actually 4.1V fully charged, there is a mode change in that iMax charger choosing between LiPo / Li-Io

[@TheSpotify95]

That mode undercharges the cells. You should use the Li-Po mode as that will take them up to 4.2V, which virtually all chargers use as the cut off voltage.

[@welshnutterz]

great project, maybe look at getting a SKYRC Quattro B6 or something that has multi charging channels, instead of lots of single output ones.

[@BorealSelfReliance]

Is home depot over priced for angle iron out in CA? I find that compared to the steel yard here in MN -- Home Depot is usually 30% to 50% more.

[@RinoaL]

+Nates Homestead Lifestyle yeah but i havent found a good steel yard yet.

[@ShanLiuGBM]

You can buy stuff from the recycle centers???

[@ianlevine273]

Are you planning on supplementing or replacing the golf cart batteries. If you keep them then they should act like big caps and handle your burst energy needs with their power density while the LiIon carries the energy density for your range. Seems like it could be very complimentary.

[@RinoaL]

+Ian Levine no the lithiums would be better in all respects, the lead acid batteries would just hold it back from reaching it's full potential.

[@enel6295]

Yhea Can you please put the link where you buy those cells

[@catedwards8693]

Hey watched loads of your videos but struggling to get a true reading from my 18650's. All of mine were taken from old laptop batteries. I have been charging them to 4.2v, then using my Imax B6 to discharge them, discharging them at 1amp is giving me reading of 54, 60 but never gets above 1000. What am I doing wrong? Any help is seriously appreciated as this is driving me mad. Thanks

[@MYNICEEV]

WOW! Your bench looks like mine. 18650 a go go. LOL. Because of the low current draw under load of my motors. I am thinking of using Boost dc to dc converters. 10Amp each per motor at 94Volts. So each of the 4 motors in the pod would have it's own power source essentialy. Then PWM type throttling for 4 motors using 2 dual stereo pots with the shafts coupled together. I believe that would work. Under full load each motor takes 3Amps. That's with roughly 280 pounds on the shaft and it was still turning at speed. I hope you get the same out of your car motor. Looking forward to the next video my very good friend. have a great day.

[@RinoaL]

+Raymond Earle thanks!

[@MYNICEEV]

As always my friend you are very very welcome.

[@jerrylee7987]

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

[@gerardjachymiak5822]

Local electric recycling center rinoa mentioned something about if you buy more than 20 it's $1.50 each

[@gerardjachymiak5822]

Nice, thanks for the information, depressed me from 1 year ago.

[@jerrylee7987]

@@gerardjachymiak5822 im sorry :(

[@gerardjachymiak5822]

@@jerrylee7987 lol dont be sorry its not your fault i just replayed to my old self.

[@bilaloz4319]

ah, how sweet that feeling when u open up a laptop battery.. been working on 18650 cells about 1.5 years now and ur videos helped me get to know pretty much about these cells, but here s an advice, since my imax b6 clone charger started to fuck around lately I upgraded it to turnigy accucell 6 80w and I can tell you I m getting waay more accurate capacity readings this time, you must get one. I ve thrown a lot batteries because of imax clone but now I get the best out of my cells.

[@RiCkMaNEnkarnation]

+Bilal Öz , I've been doing the same with one imax b6 (clone?) and now I feel I must speed up the process.. (LOTS of cells!) I'm considering the Turnigy 4x6S 400w.. Any thoughts on this?

[@bilaloz4319]

+Ricardo Encarnação Hi, I didnt try that one before but I can say Turnigy is the brand to go when it comes to lithium ion cells. Good luck !

[@RiCkMaNEnkarnation]

+Ed Va why it makes no sense? I'm talking about a quick way of measuring capacity, not (just) charging bats..

[@byronrafnson5856]

+Bilal Öz I am getting the Turnigy you recommend. Having the same problems with the Imax

[@RiCkMaNEnkarnation]

+Ed Va just for charging I use the Nitecore.. I was wondering about the best way of measuring capacity (fast)

[@mewantbrains]

0:51 i couldn't help but chuckle a bit I know the feeling all to well

[@heyyodog3096]

Where did you get the batteries again?

[@robviolin1]

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.

[@jeremydasilvaloureiro7274]

Hello where can i so many liion 18650 battery get or from where you get so many Li-Ion 18650 battery thank you in advance

[@camerong9175]

OK can u help me I have 60 NiMH battery packs what do I do with them can I make a battery bank out of them what can I use to charge them with other then a IMAX b6 it takes to long I have tp4056 but are there any chip modules for nimh

[@eAnic]

At what amperage you do your capacity tests? I make mine at 1A and bearly get cells doin more then 1000 mAh

[@RiCkMaNEnkarnation]

+eAnic here the same @ 1A.. (with Imax). Cells between 800mAh and 2200mAh so far

[@heyyodog3096]

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?

[@chrisnew7092]

wow where did you get all those battery for 60 dollar

[@RandomDIYProjects0]

How's the citi car going, BTW love your content.

[@zigzag77777]

Would like to hear about you day job. How is it going. What do you do there? Is it interesting? Are you learning anything in that position? Thanks, Ziggy

[@chrisnew7092]

how many battery do you have on your table because I have 40 lithium laptop battery

[@steve64464]

Do you think the LED indicators on the lappy battery packs could be re used/re purposed? i have quite a few of em. And that 18650 collection your getting is scary :-D

[@RinoaL]

+steve64464 yeah they might be useful. and thanks haha

[@steve64464]

I mean apart from stripping them off do you think the protection circuit/charge level indicator be re used? , Ive been messing with my 18650 tonight making small cells etc and ive been using the metal off bottom of pringles tubes as tabs, I must be insane. If you install like so many hundred in that cool lookin car do you think youd have to install like a core ejection system like on a star ship for in the event of a warpcore breech ? :-D spring twangs it out massive fireball and crazyness but car survives. Sorry im a lil crazy its late here in the UK , thanks for getting back to me :-)

[@nerfinator03]

steve64464 What. The. Fuck. I want that on anything that can explode. What episode is that in I dont remeber seeing it.

[@chriswouse7713]

your lucky in the states. I went to the dump the other day and there were crates and crates (4' cubed) full of laptop's all with battery packs. I asked If I could have some - no! Once you drop them off at the tip, they instantly become property of the local council! WTF!

[@Greysniper1]

Digging the Ave shirt!

[@RinoaL]

thanks, he gave me a blue one latter and i like that one much better. hes a really cool guy.

[@cadude145]

I cant seem to locate where to get the used 18650. tried ebay etc and all I found that there all booked as new and have pretty large price tags. can you provide any links.

[@rennierrodil6119]

whoah I find you again here. well if you have enough money in Philippines there was a.seller who sells good cell from laptop for only 35php (46php =1dollar) you can buy it wholesale and he will give you discounts BUT YOU WILL PAY THE SHIPPING fee

[@manuelalamag474]

rennier rodil I'm from Sta Rosa Laguna, still you have those laptop batteries? Gamitin ko sa solar setup ko...

[@ShaneMatthews27]

As long as you have a battery for both initially on the speedometer you'll be fine, and no wire in the way to get stuck on a branch or something like that. My mom has a wireless one and it has lasted almost 4 years now so you will probably be fine.

[@davida.5683]

What is the ideal amp rating per cell that you're comfortable with?

[@RinoaL]

+David Amonett 2C tops and 1C is best. but thats so i dont have to have any cooling stuff.

[@adrielmontoya1468]

Are your panels broken? Nice video.

[@RinoaL]

yeah i got them from the recycling center, still produce power though :D

[@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

[@RinoaL]

+mcvinda en.wikipedia.org/wiki/Peukert's_law

[@DragonsREpic]

I recommend BT-C3400. Its $50 and has FOUR SEPARATE banks and does the same as a Imax B6 (mine got destroyed by water when it was in my cooler, fucking condensation...)

[@Dynamitemonkey500]

I guess this is kindof stupid or maybe not but I wonder how far the range would increase with a solar panel on top I guess there isn't much surface area for one, it would probably mess with the batteries though and probably wouldn't be worth the fuss but it would be nice to see on paper

[@RinoaL]

+Dynamitemonkey500 well with my trike i'm wanting to pull a pop-up camper/battery trailer that would have a solar panel on it.

[@Dynamitemonkey500]

+Rinoa Super-Genius ah that would make more sense

[@Dynamitemonkey500]

+Rinoa Super-Genius I was unsure weather the constant charging and discharging that would happen with a panel on the car would ruin the batteries as I guess it would be fine with a car battery

[@sdiburro1]

Are you going to the makers fair in New York this weekend

[@RinoaL]

+Scott Diburro no, why would i?

[@sdiburro1]

no i do not have the money now but i would like to go to see it i was asking becase you went to one before

[@RinoaL]

Scott Diburro i only went to it because it was 30 miles away from me, new york is thousands of miles away from me.

[@akrammokhtar]

from where did u buy them and how much

[@RinoaL]

+akrammokhtar from a recycling center, and for about 50$

[@luna500rr]

will 50 cells in parallel be enough for current needs of your car? ...laptop batteries have high internal resistance soo...i suggest you to measure current draw and voltage while accelerating, before you salvage old batteries from car...high current can be mesured via shunts...

[@RinoaL]

+Marko Grančić i want to maintain a discharge bellow 2C, that should be good enough.

[@zigzag77777]

Also do not use cheap steel from bed frames. I've read that it's very brittle and low quality. And difficult to work with. But it's dirt cheap.

[@1981dasimpson]

300 mile be a hell of a stop over to recharge haha

[@HDXFH]

Nice battery scores

[@RinoaL]

thanks

[@ShanLiuGBM]

So jealous, how did you manage a deal like that? for 66 bucks...

[@rennierrodil6119]

I want to scavenge laptop battery packs but I can't afford imax b6 charger . I only have multimeter , is it okay to use????

[@TheSpotify95]

Balance chargers like the iMax and Turnigy Accucel are less than £30 (or the equivalent in $). They're needed for capacity measurements; you can't tell how good a cell is just from voltage. If it has been well used, it might still hold a good voltage but the capacity will be well down.

[@adhdengineer]

wait just a moment! Ave has merch? WANT!

[@northernlights777]

I've been getting a lot of garbage 18650 on their own. I'd love to get the packs like you do, but I'm seeing them on eBay at like $20 a pack with shipping. Would you be willing to share any of your sources with me in a link perhaps? Any help would be muchly appreciated as I'm dying over here in making my own packs :(

[@SimonDambro]

Does anyone know how many c theese standart 18650 li-ion cells can draw? Im having a hard time using the max potential in some of my RC components which recuires 20-35C. (Hence im forced to use the expensive LIPO batterier...

[@EEE-iw3fk]

+Simon Dambro 2

[@SimonDambro]

Cheers! ! That's really not much.

[@EEE-iw3fk]

+Simon Dambro you can buy high-drain 18650's, but they'll cost you more. cheers!

[@SimonDambro]

nah id just stick with my free standart laptop cells :) But thx

[@RinoaL]

+Simon Dambro its not a bad amount of power from a cell, because if they where high-drain cells then you would just have a battery pack that would run something for 10 minutes or so. if your going to run something like a car you would need several hours of battery life anyway so at that scale a 1C discharge will be more than enough.

[@bacongoosespamwich]

crap...i ruined 2 of my good cells...was making a 3s pack with 4 in parallel and while I was soldering them together I flipped it over onto a piece of solder wire which burned up quickly but not quick enough before it sent a lot of amps into 2 of my cells that were hooked together at 3v. Everything was getting really hot then I grabbed my bolt cutters and clipped the rows apart those 2 batteries I have in a safe place for now in case they catch fire.

[@pietkaify]

I run 4 Imax B6 at once to discharge cells! =) and charge the cells via a usb hub and loads of the TP4046 usb charg modules! =)

[@RiCkMaNEnkarnation]

+pietkaify I thought about the Turnigy 4x6S because it can discharge 4 bats @ 2 amps each.. I don't know if this is good, tho

[@pietkaify]

I would like one too! but if one bit goes wrong it is dead! whereas if i have four individual Imax chargers I don't worry if one goes pop! I mainly stick to 1A just so every discharge test is the same! =)

[@pinterelectric]

What do you use to power the imax?

[@RinoaL]

+Jeff Pinter just an old computer power supply.

[@RiCkMaNEnkarnation]

+Rinoa Super-Genius , will you use one power supply for all the 8 imax that you're planning to buy?

[@joeysaccordion8555]

I'm pretty sure the car has optima deep cycle batterys

[@jaylord55]

the goggles are for torch use

[@aerotro]

LOL so you found some dummy batteries well I got over 12 dummy batteries over time too lol

[@savagemachines]

love the tshirt

[@Deqster]

Oh and from a professional welder, GET A HOOD! You'll get face tan lines using goggles. Goggles are fine for oxy-acetylene welding, because the UV output is way lower. For arc-welding you need a hood with at least a shade #10 lens to filter out the UV rays to a safe level for your eyes. Also wear long sleeves and make sure you're neck-line is covered... I've been sun-burned before on the arms and neck.

[@mahtoosacks]

I made that mistake my first time welding wearing only a t-shirt. I was lobster red. made for a terrible week working outside after that.

[@esotericfpv1024]

the shirt skookum

[@treenopie]

Skookum Choocher...(thumbs up)

[@Zuttoh]

Have you considered bulk ordering those 18650's from china? The manufacturers give out quite nice deals on them if bought in bulk, around ~$1 a pop. Would save you quite a lot of time and you'd know that they're brand new..

[@RinoaL]

+Zuttoh if i bought them new i would buy large square prismatic cells.

[@candisbrendel7396]

weld a GUSSET WITH ANGLE IRON and that will make it just as strong as the thicker walled one, Joseph T

[@roryg4075]

Awesome! I'm in the same process right now. All thanks to you Rinoa. The only thing that has not showed up, is my Imax B6. Kinda a must have for building lipo packs. Love these videos, keep up the good work. You're an inspiration to a lot of people.

[@artemiasalina1860]

I hope I don't sound like a nag, but get yourself a real welding helmet if you're going to be doing any extended welding. It will shield your face from the UV and prevent skin cancer later on in your life. Anyway, good luck with the City Car. It looks very cool and fairly practical.

[@RinoaL]

+ArtemiaSalina yeah my new welding helmet arrived today.

[@apkungen89]

The ernergy use is all about how fast you are driving. Maybe at 20mph it only uses 80Wh/mile. I don't know how fast you want to go but if you want to go aroung 50mph it'll surly use around 150Wh/mile.

[@muntee33]

Filip Bjurling can u put a motorcycle gear box in it?

[@DIYwithBatteries]

I was searching for these video a week ago because i saw this video might be a 3 years ago I don't know i just want to watch it again 🤷‍♂️

[@RinoaL]

well, here you are. thanks for coming. lol

[@shadywalker2159]

Hmm I want to make my mountain bike into an ebike.. I wish I had a source of batteries.. All I have is 7Ah UPS sealed batteries.. Rechargeable.. Apparently the recycle centers around here are not allowed to sell stuff..

[@lessopinion9707]

You Sir are a junkie, I a'm proud to be associated with you as I am also a junkie.I have to inquire as to the gasoline pump in your backyard? The real subject of my question here is have you ever done in the experimentation with fishing/trolling motors for powering bicycles etc. I did see some quite promising results from a failed project of a friend who was clueless as to what he was doing. To salvage a trolling motor seems logical as they are a low-speed high torque motor to begin with, with all the variable speed controls and reverse supplied within the unit in its original form therefore inviting to be cut up butchered up and taken apart for other application. If you get a chance please respond to this. Thanks, Dave P/S I enjoy your videos keep up the good work.

[@GeorgeGardinier]

the citi car comes when and you have a california dl

[@RinoaL]

+George Gardinier no ima get an Illinois DL

[@redneckbryon]

since the batteries are set in pairs why not leave them like that and charge them that way it would save time.

[@RinoaL]

+redneckbryon because i'm going to break them up, and also i've found that one cell in a pack can be good while another one is bad.

[@njchris9654]

where the shit do you get all your laptop battery packs???

[@janettestatum9476]

i open up a laptop battery i was wondering if rinoa want them

[@RinoaL]

+Janette Statum thanks, but i have enough of them now.

[@farrokhmirbaha2627]

With all the battery packs you have made and will make, you may soon face the need for a power supply that can provide some serious amperage for your balanced charging solution. I'm sure you won't want to wait an eternity to charge a large battery pack that has discharged to near its lowest allowable voltage level after a long road trip. Will you be assembling your own 50+ Volts power supply for that purpose any time in the future?...

[@RinoaL]

+Farrokh Mirbaha yeah i will probably modify an old welder to charge it.

[@RiCkMaNEnkarnation]

+Rinoa Super-Genius can't wait for your solution on this.. ;-) I'm also working on a EV

[@muntee33]

Rinoa Super-Genius what about a small industrial combustion engine driven generator?

[@cfavreau]

Those look like gas welding goggles. I am not sure those are going to protect your eyes from UV from the Arc welding.

[@RinoaL]

+cfavreau they are shade 10 welding lenses, they are required to shield UV

[@Coolkeys2009]

+cfavreau Another commenter said that arc welding needs a visor that covers your whole face. So can the UV from arc welding cause skin damage or give you a sun tan? :-)

[@cfavreau]

+Rinoa Super-Genius Ok. As long as you are sure. I don't want you to end up blind or with cataracts. However the comment below is right. You should look at the whole face mask. You can get a whopper of a sun burn from the Arc too (and eventually skin cancer etc.).

[@abraxsis]

+Coolkeys2009 Yes, it can. UV is UV, regardless of the source. If anything, it can burn you faster because you are basically standing next to a concentrated source.

[@nerfinator03]

abraxsis You just get suntan. If you weld alot you might want to consider a mask . But a day of welding for his bike wont kill him. Just tan his face and uncovered skin

[@rodstartube]

damn that creepy muzik

[@brannenthompson9662]

I got my first delivery of laptop batteries yesterday they were dell units and i found one with only 4 cells in it instead of 6 the middle 2 were missing anyone else found this the pack was unmolested in perfect condition they all had grey LG cells LGABB41865. And I'll copy you in future and wear at least one glove I have 4 plasters on my hands at the moment.

[@The4Crawler]

I have an extra full face/flip down welding helmet if you're looking for one like that.

[@RinoaL]

+R Brown (4Crawler) thanks but i have one comming in the mail now haha

[@atdit]

Where the fuck do you get that much laptop batteries?

[@karzygijose]

Thats what im saying

[@danieli1351]

eBay :D

[@darthrevan2063]

AtDiT eBay duh

[@afiacco9155]

I bashed you earlier man but your OK man, anyone who would rip apart all those bats for a motorized tricycle is cool with me.

[@dozer1642]

Those aren't welding goggles. They are torch goggles. You'll be blinded using those to weld.

[@dozer1642]

........just read the earlier comments. Disregard my latest post😕

[@faded.0913]

I love lithium cells. I would love to have some to make my own batteries •-•

[@RinoaL]

+The Computer Tech Guy then go find some. they are everywhere.

[@faded.0913]

+Rinoa Super-Genius I tried places like my local Home Depot that has a recycling center and they yelled at me when I asked if their lithium batteries were for sale and junk yards want $15 a piece for laptop batteries :'(

[@RinoaL]

The Computer Tech Guy and where are you going to look next?

[@faded.0913]

+Rinoa Super-Genius there's really nowhere to go where I live. Recycling centers either don't have it or charge wayy to much so I'm kinda out of options that's why I once asked if you were selling these

[@grapsorz]

those goggles is for acetylene oxygen welding.. do NOT use them for arc welding.

[@RinoaL]

+grapsorz but they are shade 10 so are required to protect against UV from what i understand.

[@grapsorz]

stil they don't protect your face and as you found out they don't cover so good. you can still get cancer or at least sunburn from the UV rays hitting your face. if you want to weld get a automatic welding mask. not the absolute lowest price one's as some of them tend to fog up during use. i see they start at 25$ on ebay. worth every penny.

[@RinoaL]

grapsorz i just got myself a normal welding helmet.

[@romanitzki]

Very cool, I took apart 25 laptop packs myself, got them from computer repair shop. For discharge testing I use 3 of these 7.45$ discharge testers. (ebay item number: 271731490268) -- ebay link: www.ebay.com/itm/271731490268?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT -- Also I use 7.5Ohm 5W resistor for a single cell or 3.3 Ohm 10W resistor to test pairs (too lazy to take separate, since they are spot welded in pairs). Discharge them to 3.0V, it stops automatically and displays mAh, so great! This speeds up the testing process considerably compared to one iMax B6. Thanks for the videos again, I am following every step of your new citicar project, very inspiring :)

[@danhle1032]

+Roman Seibel you make a good point abou speed of testing. do you know where i can learn more about these testers you linked up. the ebay listing is a generic name instead of something specific so when searched in youtube don't really show that particular unit.

[@romanitzki]

Hi Danh, unfortumately I couldn't find anything on google or youtube, I guess it would be great if some one would make a review of one of those. I can't find the time unfortunately.

[@madhakaa]

+Roman Seibel Sir i have been wanting to buy this tester can you do a video on how it works

[@1981dasimpson]

you must be well on the way to your rainbow battery collection

[@RinoaL]

+David Simpson yeah i am hahaha