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

5 жыл бұрын

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

@rrrimve

5 жыл бұрын

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

@cal82252

5 жыл бұрын

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

@LChow-xq3xm

5 жыл бұрын

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

@Lea-ww9hf

5 жыл бұрын

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?

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.

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!

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.

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

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

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)

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)

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.

I make up the story you have no problem being factual rather than coerced. It's easy to fall victim to a false sense of self (ego) but I bet you would do a fantastic job reviewing the various products and bikes offered you. You also carry a sense of kindness and that would benefit viewers seeking reliable and solid products. Thank you.

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

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.

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...

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!

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.

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 KZread channel. if I had copies of your books the future would be Limitless.

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

I love seeing this kind of breakdown and review!

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.

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.

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.

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.

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

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...)

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

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!

Great stuff Micah! Love your work and books!

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

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

Thanks Micah, always appreciate your videos!

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

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

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

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.

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

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

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

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

Thanks for another great video. Always informative!

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.

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

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

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

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

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

Always learning. Thank you

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

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 🚴

Super Informative Video! Thanks.

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.

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

Thankyou For your straightforward explanation

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

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

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

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

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.

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

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

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

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.

Brilliant Thank you for delivering a clear understanding

As always great video and great content. Thanks Micah!

Thank you for your honesty and integrity!!

I always learn something new in your videos. Thanks

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.

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.

Appreciate the lessons! Learned a lot!

Thanks for that. Very helpful!

Great information, thanks!

Excellent video with very good and articulate explanation.

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

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

Very informative! Thanks dude!

Very useful tutorial, thanks for posting :)

Great video ! It covered everything . THANKS.

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

A lot of good information. Thanks

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

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!!

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 жыл бұрын

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 жыл бұрын

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

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

Im thrilled to see that they have some balance leads in there. Being an RC car guy just getting into big scooters i was unsure if the manufactures would cheap and and just do a fast charge everytime with no balance leads.

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

Very good video. Thanks Micah. Muy buen video. Instructivo y práctico. Gracias Micah

good video. precise and to the point. no dilly dallying to lenghten the video. Tks mate.

Another Great Video!!Keep them coming!!!

As always, great info on that battery.

outstanding work very informative thanks again!

Great as usually! Thanks a lot!

very professional! thx a lot!

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.

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.

Brilliant! Excellent lesson.

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

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

Excellant video. I learned a lot. Thanks

Excellent video ... Thank you.

Great video. Very informative.

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.