How do you know if a battery is good quality?

4 роки тому

Find this battery on Amazon at: amzn.to/2Xcgvja
Learn how to make your own battery with my book DIY Lithium Batteries: amzn.to/2jbxvzS or check out my second book - The Ultimate DIY Ebike Guide: amzn.to/2BGx4Fn
The gear I use for my videos:
Camera - Nikon D5300: amzn.to/2DcuVlM
Lens - Tamron 18mm - 270mm: amzn.to/2qLZlsG
Thermal camera for iPhone/Android: amzn.to/2FikWvW
Drone for "follow me" filming: amzn.to/2UFOds5
Camera for invisible selfie stick shots: amzn.to/2Vb9D0r
Here are some of the products I use:
Bafang BBS01 kit: goo.gl/VxhTHu
Bafang BBS02 kit: goo.gl/9cfWfk
Bafang BBSHD kit: goo.gl/dWX2pm
250W complete e-bike kit: goo.gl/7HSQye
500W complete e-bike kit: goo.gl/xWPgtj
1,000W complete e-bike kit: goo.gl/UdUWK9
36V 13Ah Hailong (shark) battery: goo.gl/K9PsuC
48V 15 Ah triangle battery: goo.gl/6zjneY
52V 17.5 Ah triangle battery: goo.gl/e1E8ug
All ebike batteries: goo.gl/7pAi9Z
All 18650 cells: goo.gl/hYWnwU
Xiaomi QiCycle: goo.gl/Ys6JTZ
500 Wh folding e-bike: goo.gl/UWgoJU
Weird suspension folding e-bike: goo.gl/T9xBqN
Segway ES2 scooter (AliExpress): goo.gl/32szNF
Segway ES2 scooter (Gearbest): goo.gl/25URD9
Xiaomi M365 scooter: goo.gl/iEQWJw
100W Flexible solar panel: goo.gl/jK1CSB
100W Folding solar panel: goo.gl/WnHmgY
Cycle Analyst: goo.gl/RsmE3N
The parts that I use for building batteries:
18650 cells: goo.gl/aEabAQ
18650 positive insulating washer: goo.gl/HBVOuc
Nickel strip: goo.gl/VIrNQq
Spot welder: goo.gl/KN3Uaw
BMSs: goo.gl/S6gSQx
Silicone wire: goo.gl/xmpbKD
Black 18650 cell spacers: goo.gl/hQxWF6
Vruzend cell spacers: goo.gl/5ReLqA
Large heat shrink tubing: goo.gl/6v1ow9
Small heat shrink tubing: goo.gl/OU3Z6u
Foam sheet for protecting battery: goo.gl/5e71tE
Kapton tape: goo.gl/D6BT57
Chargers: goo.gl/js0T0V
**Question response book giveaway rules**
When you guys asks questions in the comments of my videos, I'll try to answer them. If there are questions that I think would make a good video response, I'll choose them to do a longer segment. If I choose your question for a video response, you'll win a copy of my book The Ultimate DIY Ebike Guide (the paperback or the ebook), or my book DIY Lithium Batteries.
Here are some things that UKposts makes me say: This contest is not sponsored by UKposts and UKposts isn't affiliated with it. I'm supposed to provide a link to the community guidelines for UKposts (ukposts.infocommunity_gu.... UKposts is not a sponsor of this "contest" and by participating, you are releasing UKposts from any potential liability, whatever that might be. Privacy notice: I won't steal your info. If you do win, you can choose to send me your address so I can mail you a paperback copy of the book (or some other prize if that changes) or you can send me an email address and I'll send you a copy of the ebook. I will do everything in my power to immediately forget your personal information afterwards.
Outro Music: BenSounds

КОМЕНТАРІ: 677

@EbikeSchool 4 роки тому

Man, this video was well over 25 minutes in the first cut. Even after hacking it down it's still a beast. I hope you guys don't mind the long ones!

@unchained20000000 4 роки тому

What is the highest watt motor and battery that I can buy and still be a moped in Pennsylvania.

@rrrimve 4 роки тому

There's some good videos over an hour and no worries at all. It takes time to explain everything shortly. 👍

@cal82252 4 роки тому

It's OK by me! sometimes I watch them twice and take notes. Great info!

@LChow-xq3xm 4 роки тому

Not at all... great video!!! Thanks

@Lea-ww9hf 4 роки тому

It has the necessary time to know how to inspect a battery! Can you show us the other methods to know if the nickel strip have steel?

@sansagii 4 роки тому

Awesome . you showed us the simple ways of checking the battery quality check . thanks for this video.

@VCITCloudDesktop 4 роки тому

You're absolutely right with your initial comments, it's great content like this that's building you trust and a loyal following. FWIW, I recently purchased a Vruzend kit and a bunch of other items from your online store because of your contribution to the ebike community and your dedication to quality content. My first ebike build went very smoothly, thanks to all the info I learned from your videos and your book. Thanks!

@graycatgrayhat3404 4 роки тому

Knowing that all the content on this channel is top notch and honest is what we like. I think several people would be willing to support the channel with donations as you provide great info to the ebike community.

@LexYeen 4 роки тому

Content like this is why I subbed ages ago, and why I bought your books on battery building and ebikes. Practical information delivered in a concise, easy-to-digest format.

@thecam0073 4 роки тому

You're correct. I come here for great technical knowledge just like you provided in this video. The nickel test, the explanation of the terminal thickness on the power wires... I will use that for sure. Micah is my only ebike subscription on youtube (i'm a 2wd m365 builder)

@mitchellbarnow1709 4 роки тому

This video was definitely not too long, because there was a lot of information to learn. Thank you so much, Micah

@RPRosen-ki2fk 4 роки тому

Good job explaining without talking over my head. I'm still gonna need to rewatch parts though.

@billprocter942 4 роки тому

I appreciate the detailed and honest review. I was actually looking at this battery on Amazon.

@reframeyourbody 4 роки тому

Amazing video! Great to see you reviewing this with great care and honesty... Would love to see a little experiment if you fancy that: what happens with your thermal camera when you pull 30 amps from this battery; how much better does it get if you replace the discharge bits of nickel plated steel with pure nickel...

@davidfastje8469 4 роки тому

As someone who just built an ebike, I really appreciate good unbias reviews like this! Also, I strongly support having well-made ads in youtube videos! The only reason that people generally hate ads is that they are frequently done poorly (just keep each ad original and there is no issue ... meaning please don't just re-use them)

@dimyttt1780 4 роки тому

Congratz for the amazing work you"ve done with this battery inspection!! The choose to not promote e bikes and keeping te channel free of ads makes you an amazing youtuber.. Thank you a lot for all these insights.

@lawrencenelson7955 2 роки тому

Thanks for doing the breakdown on the battery, I learned a lot! I had wondered how there could be such great differences in battery costs from different vendors and manufacturers.

@WalterClaus 4 роки тому

Very informative, I'm so glad I recently found your channel! I'm learning a ton of interesting info, thank you!

@johngarriss 4 роки тому

Thanks for taking care with clear and intelligent explanations. I appreciate your attention to detail and you clearly value good quality design. I look forward to learning more from your videos and articles. Thanks again!

@tommycalaway7983 3 роки тому

again you blow my mind with the how easy you make it all look. it's actually quite encouragingso old high school dropout like me becoming quite the electrical engineer thanks to your UKposts channel. if I had copies of your books the future would be Limitless.

@daniele_go 4 роки тому

Hi Micah, as usual excellent and very informative video, thanks! The only thing I miss is that the cells are SUPPOSED to be 2500mAh from the technical sheet but this should be checked to really know if this is a good quality battery. It would have been nice if you had been able to charge/discharge 1 cell and see if we are close to theoretical specs (or not...)

@domeshining5473 4 роки тому

Thanks for the very informative video. Been very interested in creating my own battery packs for a while, and your videos are helping a lot.

@catalyst2o 3 роки тому

I really appreciate your honest and comprehensive reviews, not like some others who only look at the most obvious your nickel test , awesome and simple.

@kyleniedermeier6651 4 роки тому

I love seeing this kind of breakdown and review!

@handyhippie6548 4 роки тому

this is why i subbed this channel. useful information, unbiased opinions, hands on examples of how to understand what, and why. you never fail to deliver on the goods.

@HackHunter1835 4 роки тому

This video is another reason why i sub'd way back when. Well done.

@bernym4047 3 роки тому

I learned so much about cycle battery design and technology from this video. Excellently produced with superb audio, lighting, focus and video-photography. Many thanks.

@stevelacroix2917 4 роки тому

Got one of your book hope to win another......this is about quality, and I'm glad your covering this.

@KS-2 4 роки тому

Very good video. I do not mind longer videos with great content. Thank you for making this video. I’ve been contemplating on converting my existing bike to electric, and your videos have been a great help.

@stephannilsson7809 4 роки тому

I have no problems with longer movies when they are well made, as this one is. Well done Micah

@karlschwab6437 4 роки тому

So interesting on ebike batteries! Thanks so much for doing this; I had no idea on how complex these ebike batteries can be! Thanks again.

@joemehere1151 4 роки тому

Thanks for taking the time to educate us. E- bikes are coming!

@artfree-spirit7214 4 роки тому

Great stuff Micah! Love your work and books!

@dearThax 4 роки тому

Love these videos. This was especially informative. Great work!

@KevinWileyK 4 роки тому

A longer video is still good, if it's all actual content. Good work. You're creating a channel with quality information that I think I'll be able to trust.

@oze-bikes4life663 4 роки тому

Hi Micah, As usual another "Great & Informative Video" 👍🏼 Your Battery Breakdown & Battery construction info was excellent, keep up the great Work..... Keep E-Biking & hitting those Trails dude 🚴

@biofarmer674 4 роки тому

Thanks for sharing all of this useful info. Very helpful getting up to speed with what's inside the e-bike battery

@David-xr2sc 4 роки тому

Awesome video. Not only did I learn how to check if a battery is good quality, but I also learned things I can improve on my DIY 18650 batteries.

@DanielASchaeffer 2 роки тому

So for us mortals, who makes a good battery?

@mensch4434 Місяць тому

do it yourself or you will get ripped off

@DKLVE 4 роки тому

Great job, you just made a very informative and important job checking that battery. I've checked my myself many batteries and what I found in some cases was very small BMS'S with small heat sinks. And all bad. I think that if BMS'S are too small they won't last to long.

@mikesumner5320 4 роки тому

Great video. I am starting out with e bikes and this helped demystify lithium batteries as well as describe best practices for construction

@leslielaw880 4 роки тому

Thanks for all the good information I've been looking to buy one for a project

@CDLynas 4 роки тому

Love the ethos of this channel, keep it up mate!

@pauldjerassi620 4 роки тому

Wow what a great evaluation of a ebike battery cant wait for your next one ,Thank you PD

@specialk22tt 4 роки тому

Great video idea. Really helps us learn in a very practical way.

@o1ecypher 4 роки тому

I heard your book is the best thing to read for anyone wanting to build their own electric bike I'm here for this wonderful knowledge thank you for all the help man

@davidlittlefield2483 4 роки тому

Thanks for the very thorough and informative battery review. Well done.

@mandog2142 4 роки тому

Micah, Super evaluations and videos. Very thoughtful and thorough! Thanks

@kamenwaticlients 4 роки тому

Love the educational content of your channel. Keep it up. I'm trying to figure out how to make 20-30kwh battery

@christianvic2 4 роки тому

Thanks for another great video. Always informative!

@simonrompre 4 роки тому

Thank you, very informative, batteries are a very important ebike component and knowing what is inside the case is very helpful.

@Doctorbasss 4 роки тому

That's an excellent review! You examined every important points including common CONS that cheap battery have. Btw, sometime when a parallel group have the main positive or negative wire soldered to one end of a parallel group, there chance that the opposite polarity have a serie link to the other end, which conpensate for current balance.. but in that design where serie parallel connections are in majority in "W" there is les chances. Also i would have been curious to see if teh ON/Off switch is connected to the BMS SW1 input.. usually located close to the external temp sensor connections... in fact BMS with switch input and temp sensor are usually input that are connected in serie.. and when there is no external switch used, the connections on teh PCBare simply jumped together to close the loop and enable the BMS FETS.

@Pierre048 4 роки тому

Super Informative Video! Thanks.

@dreamkiss4u 4 роки тому

one of the most useful videos i seen on this topic loved it.

@JariJuslin 10 місяців тому

Thanks! As someone intending to build a custom battery housing (and then have someone better informed solder and wrap the cells) this was very useful. One note: you say the cells are going to get really hot when discharging at the highest rate. However, the 2C reading is rated for -20C...0C. If we're like -10C, overheating is not going to be the first and foremost problem unless you really somehow manage to keep the max load on on continuous basis. On subzero temps it's usually different things than overheating that dominate the risks.

@Juansanjuanlopez 4 роки тому

Thanks for the explanations. I'm going for my second electric bike kit, I'll check the battery construction.

@stevelake5943 4 роки тому

Thank you for the good videos. I also purchased your book DIY Lithium Batteries how to build your own battery packs.

@caseytaylor 4 роки тому

Great Video! Great tips for analyzing battery pack performance as well as individual cells.

@78suntan 3 роки тому

Thanks for the information. I like how you go into detail.

@frankakers8019 3 роки тому

These videos are excellent tutorials for ebike owners & DIYers. Also great for segment teaching Industrial Technology skills & procedures

@MoeNegm 4 роки тому

You are the man bro! Really geniune down to earth. I subbed, great Content

@mccwiseley8085 4 роки тому

Your videos are very informative. I was hoping to see part 3 of the e-motorcycle build but I guess that is in the future. Keep up the good work. By the way. Motorcycle screws especially those connected to the engine are impact screws and you need to use a impact screwdriver to get them off without stripping the heads. In expensive tool but essential for motorcycle work.

@CanonFirefly 4 роки тому

Great video, it would be great to see more of the same from some other more well known Chinese battery manufacturers. EM3EV, unit pack power etc.

@geraldrobichaud349 2 роки тому

Thank you for all you do . I've found this video really well done and i learned a lot today.

@SMKreitzer1968 4 роки тому

Nice review, would be great to get one of your books!

@czarzenana5125 4 роки тому

The electrical resistance of Nickel is about 70% of that of Iron, so the difference isn't very big. There are plenty of cross sections between cells in series, so it wouldn't be a problem at all. You could have actually measured the width and the thickness of the strips and do some calculations instead of using words like 'I guess' and 'probably'. The point that worries me is the (dual layer) strips of the first and last row. Furthermore, you didn't measure the capacity of the cells. You went for the datasheet. If there is one thing you cannot trust it's the specs of Chinese cells. They are sold to up to 9999 mAh which is nearly 3 times of what is even possible at the moment. Most of them perform way below their (fake) specs.

@kevincai96 4 роки тому

Those are really only the UltraFire cells. If you get branded cells that weigh the right amount, you can be confident they have decent capacity. Internal resistance on the other hand...

@4nlimited3dition_4n3d 3 роки тому

@@kevincai96 Most of them are also recycled and rewrapped.

@johnsanicola3480 10 місяців тому

Fantastic and very informative. Your detailed descriptions are on point. Learnt something that is actually useful. Thanks!

@jameswilson9368 3 роки тому

Hi James here from SC. This is a great website, very informative helpful and complete. I have an e-bike, three wheel. I turned it into e-bike, my first attempt. The company I bought from is gone, my battery is dead, so I learned an important lesson. I can't find a battery replacement so I'm going to build myself. That's how I found you. I'm going to build one no weld with one of your kits. It's 36 v, but I'm going to add more batteries for more distance and you have all the info and materials I'll need. I'll be looking up where to get the kit. I'm so happy I found you!!

@kingcryptobro800 5 місяців тому

Great Vid, would love to have a couple of your books when the time comes for my Ebike modifications. Thx really for the info.

@bathanmark 4 роки тому

One of the best video I have seen so far. Thanks

@michaelarnold3105 4 роки тому

I would have taken the weight of the cell into account if I found that they used nickle coated Steele. 18650 should be 18 mm x65 mm and have a weight of between 41 and 45 grams obviously the heavier the cell the more the capacity. also if you had pealed a cell cap you could have checked for a protection circuit and venting in the top of the battery. This is another strong indicator as to the quality of the battery and lastly hook the battery up and check its discharge rate. Thank you so much for all your hard work. I have learned so much by watching your videos. You have brought so much useful information and done so much for us guys that hack around at home. Have a great day and please keep making lots of videos. As far as the length of the video goes the longer the more information.

@warrenkrup 3 роки тому

Thanks Micah, always appreciate your videos!

@markjohnstone4914 4 роки тому

Great review that helped a newbie like me to learn some things! Video was NOT too long...curious as to why you did not do any tests on the pack to see what it was capable of? Thanks again!

@taigaw67 4 роки тому

Awesome video. I will be sure to look for your key points when I buy my next battery pack.

@mohammedelbaraka4202 4 роки тому

Thank you for your honesty and integrity!!

@jamesceastep8874 2 роки тому

Thanks for good detail, clearly explained & photographed. - Jim

@joefriend213 4 роки тому

Always looking forward to your next video, and keep meny for ref.!

@thomask837 4 роки тому

Thanks for that. Very helpful!

@bdbd2445 4 роки тому

Great vid!! thank you for sharing, very helpful info.

@6235dude 4 роки тому

Ok, I'm subscribed! I'm beginning my research with the intention of building an electric motorcycle. I know virtually nothing yet, but I was impressed with your presentation, and will be looking at more of your videos, and considering reading your books. Thanks for the quality presentation

@DrJoonPark 3 роки тому

Same!

@djotter 4 роки тому

As well as inspecting a commercial kit, you also give good advice to DIY a clone. Thanks!

@kurtismckemmie4850 11 місяців тому

I'm so glad I'm watching this video again. I have a couple cells that are not fully charging. When I took the battery out of the sleeve (I have a ancheer step through, no longer available on Amazon ☹️) they hot glued the wires and hot glued it to stay in the sleeve. It was a fight getting it out! I removed it very carefully without pinching any wires. Just waiting for my money to come in so I can order a couple parts. Spot welder and heat shrink wrap that you recommend in one of your videos.

@Sasidhar_Sam 2 роки тому

Thank you for making these videos. And I have been reading your book diy solar power, it’s really fantastic 👌

@BillTheHawk 2 роки тому

First time I have watched one of your videos. Wish I had known about this channel long ago. Great information. Thanks.

@haulngrassracing 4 роки тому

As always great video and great content. Thanks Micah!

@tomtheworkingguy 4 роки тому

Thanks For your videos. I like the way you explain your techniques and don't get to academic with electrical engineering stuff.

@veryanoynimouse 4 роки тому

Great video. Very helpful to get an idea of how to check a battery pack

@psiResearch 2 роки тому

This was very informative as I am comparing batteries while preparing to make a purchase. Thank you! -Bill

@dragonseyepictures9425 3 роки тому

Thanks for the informative video. I am a bicycle tech just starting with ebikes. I picked up a defunct ebike at a garage sale, and It seems that the battery is bad, so I am looking at inexpensive replacement or refurbish options. Your video has given me some vital information to use when selecting a replacement.

@andreasjohansson1964 4 роки тому

thx for the insight of what a batterypack shall look like!

@KhangTran-dj3lx 4 роки тому

Very informative! Thanks dude!

@ericb.4358 6 місяців тому

Thank you for this VERY enlightening examination of a bike battery. My E-CELLS Super MonarchCrown 2 wheel drive E-MTB has two SAMSUNG batteries, 17Ah front and 14.5 Ah rear (under the rear rack) Dave Cleveland, the designer/owner of E-CELLS did a very good job of sourcing high quality parts for a great price ($5,100.) Chinese motors, Japanese gearing, Korean batteries, Thai Vee tires, Taiwanese aluminum frame, American rear shock, etc.

@jamesjohnson9557 4 роки тому

Always learning. Thank you

@cyanictempest 4 роки тому

I find all of this stuff SUPER fascinating, I always try avoid batteries because I thought they were too easy to mess up but this seems almost straight forward. Maybe I will make an ebike

@davidhankins7109 2 роки тому

Very educational video , I learned so much. Just minutes before watching this information I was looking for a second battery for my e-bike. This helped me make up my mind.. Thank you David Hankins Ozark Mo.

@blairejercito7550 4 роки тому

Another great video! Great job. Keep it up!

@tastin1674 3 роки тому

Brilliant Thank you for delivering a clear understanding

@tomcull5053 3 місяці тому

Great video. I’m a NZ physics teacher and am happy to share your video because it is accurate, paced well and with great visual reference. Top marks, and many thanks, nga mihi nui!

@jddw6999 Рік тому

Thorough review with balanced specificity. Now I am curious as to what battery manufacturers you like the most.

@sirkillall Рік тому

I'm actually finding your videos quite helpful, this one was excellent.

@mackcollister7531 4 роки тому

Fair and balanced, thanks! I trust your expertise so much I bought the Verund battery kit and some good 'top five' cells. Can't wait to learn hands-on!

@tangowood 3 роки тому

Mack Collister ..So what’s your thoughts on the verund kit and the building process today? :)