Does your E-bike battery have counterfeit cells?

Very important to check your battery to make sure you got the cells you paid for!
Check my website for my Blog and to shop e-bike parts
www.Johnnynerdout.com

[@Zebrajellyfishphoto]

Nice work. There are so many unscrupulous people and companies. Most of them unfortunately are offshore which makes it more difficult to settle any issues.

[@mucy2807]

Ebikes are still rare in Barnsley, S. Yorkshire UK - I love people looking at my mtb, newly bought for £350, bbs02b 750w (locked to UK road legal speed of 15.5 mph 🤔) nipping around with ease and decent torque 👍👍👍😂😂😂 and now I’m Ubering and loving it woohoo....

[@davidbuckwitz5408]

Thanks for the tips John. Great videos!

[@JohnnyNerdOut]

You bet! glad you like them!

[@FlyingFun.]

That's the first step, if it passes that stage you need to actually test the capacity with a meter of some sort, The covers on the cells can be faked and also seconds can be used so even though they might be genuine cells the actual capacity and ability to deliver power will be less. Brand new good quality cells are expensive and building a quality pack from them will cost more than just buying the genuine cells so be aware of that. For my cheap DIY builds I took a chance on liitokala packs, they were cheap but performed as I expected at around 16ah for a pack parked as 20ah, I rarely use more than 50% of the pack so it's no problem

[@olitonottero7620]

Super helpful info, thank you.

[@MrJob91]

Awesome video series. I bought 2 hailong batteries with brackets. They were listed as 36v 10.4 li-ion samsung. Thus only cheap samsung 2600mah cells inside. Im limited to 250 watt and 25kmph so very useful batteries. For only 160 dollar shipped within 5 days. I use 2 in parallel when i want to ride 80-100km

[@Full_Throttle_no_Brakes]

Nicely done video mate. As a side note. For those with a bit more experience on batteries I'd recommend use 6s 22000MAH LIPO battery blocks connected in series or a combination of series/parallel. They provide a lot of amps power and are cheap. Best brands of lipo are Gens ace tattu, Zdf, turnigy, zippy, hobbyking. 12s blocks are also sold. I use 18s. 3x6s blocks in series.

[@4rtis]

Hi. You can share with us where you bought that good one battery 🙂

[@irishrover63]

I thought that you would be assembling your own batteries. I was considering constructing one myself, but when you have paid for the spot welder, it doesn't work out cheap unless you are intending building more batteries. Your channel is growing and more comments also. Happy Easter. :)

[@JohnnyNerdOut]

Too time consuming or I probably would make my own. Thanks man, you’ve been here a while😀

[@irishrover63]

No worries, intend to hang out for a while.

[@JohnnyNerdOut]

@@irishrover63 😀🙌

[@joeows6537]

Luna Cycle , in my opinion has the best bang for the buck, when it comes to quality and reliability. yes, ya pay more, but you get what you want and in more cases than not, it is better than you can hope for!.... just my 2 cent's!

[@debunkthejunk1]

I haven't bought a battery from Luna, but I have seen what they put into making their batteries. Seems like top notch quality and attention to detail. Their support is excellent as well.

[@joeows6537]

@@debunkthejunk1 Luna get's it's bafangs Specially built with extra sensors and mosfets, allowing them to create their own controller and when matched with their 52 volt battery, will allow 2500 Watts from the motor. I have my eye on their Galaxy Paint Ludicrous. It has a 1x12 Sram transmission, dropper seat, 4.8 inch wheels.... an all season, all terrain monster ebike. You can also order the bike only for only 1,400 bucks. I'll be getting mine in the next month or two! Take care!

[@debunkthejunk1]

@@joeows6537 I'm not sure if you are referring to the Ludacris V2? It's way more than 2500W but apparently they aren't selling to the public. I'm running almost 3500W through a stock controller. It gets the job done.

[@eazysmokes3743]

If they had something better then 13.5ah Luna would've had my money by now... They need to make bigger packs!

[@JoLe1991]

I ditched all the 18650 cells in my battery builds. I only stick to the samsung 21700 48X or 50G models, they have high capacity, low voltage sag and especially long lifespan (1500-3000 cycles possible with slightly reduced voltage range of 3.0-4.15V). they're hard to get though... not many suppliers carry these models

[@JohnnyNerdOut]

That’s I got in my e-moto builds pack 👍

[@theoffgridtravelers7316]

Great video, thanks.

[@truckn]

Why not throw the unscrupulous seller under the bus so we all can avoid them. Thanks for the info. BE well. 👍😎

[@seanrice7511]

I feel like the outdoor power equipment batteries should be looked at as a first “second” choice (behind premium dedicated ebike packs) as an alternative to going with generic cells and batteries. I know they have their adapter and mounting issues, but if some of that can be standardized, then using reputable OPE batteries from Ego, Toro, Ryobi, Greenworks, etc, that can be quickly pulled off and put on a rapid charger, in the voltage range of the motor, you have opened up many price, performance and quality aspects that don’t seem to exist. The choice of premium or generic, from battery names no one has heard of, with chargers that don’t actively cool the battery, might need to be stirred up by more dedicated builds from guys like Johnny using Ego or Toro or Stihl or whatever brand of good tested, with warranty, batteries you can buy at Home Depot, Lowe’s, Ace or Amazon etc.

[@oceanbreze1977]

Maybe a battery test is needed to determine low capacity cells or worn out ones. You will need a power resistor as a load, and an amp meter. Fully charge up the battery. If the battery is say 48v and 13Ah, then in theory , 13 amps can be drawn for 1 hour. To be safe, just draw say 1 amp for 13 hours, or 2 amps for 6.5 hours. Total Time to draw current = Ah / amps Power Resistor = 48/amps. The wattage of the power resistor should be: watts = 48v x amps , or greater in watt ability. At the end of the time, the current meter should still indicate about the same starting current, and you may continue the test or not, but perhaps no more when the battery is say 50% of its voltage.

[@oceanbreze1977]

Power to the motor is V x amps.

[@JohnnyNerdOut]

I no longer have access to machines to test load capacity. Honestly I don’t know if I have the appetite to make one out of resistors either...if you have a link to good. Cheap one?

[@oceanbreze1977]

@@JohnnyNerdOut I wish I had a battery power meter or something, but the comment is just an idea of a homemade solution.

[@oceanbreze1977]

@@JohnnyNerdOut The amp meter can be had on a cheap Harborfreight multimeter. 100w power resistors might not be too expensive. Also aligator wires and clips for connections, that can handle say 2 amps. Resistors can also be placed in series to sum to a larger resistor, but they all need to be able to handle the current and power through it.

[@JohnnyNerdOut]

@@oceanbreze1977 that’s true. Might not be as hard as I think

[@osi9567]

Hey mate great videos

[@josedelgado-gw2ug]

Good video jhonny. And thanks.hey can i hit you with some questions let me know i can use the help for my project

[@UncleFjester]

I have a very good suspicion that the Juiced junk Bikes have cheap battery cells labeled incorrectly.

[@JohnnyNerdOut]

The “manufacturer “ I used to work at knowingly did that

[@Ray_Entertainment]

Did you reach out to the company that has the gen.... cells?

[@JohnnyNerdOut]

Still waiting for a resolution

[@kursluzz]

But you didn't even test it on capacity!

[@tau856]

What it said on the sleeve of the batteries could be faked. The real truth is to do a Wh capacity test of the battery pack.

[@JohnnyNerdOut]

very true. not many people have the ability to do that though. but ya

[@tau856]

@@JohnnyNerdOut A simple kill-a-watt meter will kind of give you an idea. The total power to take an empty battery (where your ebike shuts down) to fully charged gives an idea if the battery is way off or close to what the spec claims.

[@scotth5503]

@@tau856 that's a good idea but chargers aren't 100% efficient are they? meaning the kill a watt # will appear overstated

[@tau856]

@@scotth5503 That is correct and we can certainly factor that in. From my years of switching power circuit design experience, I can easily say that most, if not all the chargers with switching circuit should achieve 9x% efficiency with the switching and MOSFET technologies nowadays. I have tested some chargers previously and they even had over 95%, especially during charging at the rated output. Again, we are just getting an idea if we got what we paid for, this idea is simple and close enough.

[@dks13827]

Johnny please show us how to test a battery. With 4 power slots. 2 plus and 2 minus slots. How do you multimeter that?

[@JohnnyNerdOut]

2 are positive and 2 are negative. use the two most outer tabs to measure

[@LetArtsLive]

I think I would not open my battery is it has a warranty. But maybe that's what they want I don't know what if you open it after the warranty? That's a big battery. I read that there are new batteries coming out I sure hope so cuz maybe these batteries will be cheaper? I think I'd be angry if I open my battery it's supposed to be something like Samsung for LG and it was not. Should I open it LOL I'll just be pissed off

[@JamesSchenck]

When do you anticipate having 72 volt batteries in stock? Or where do you recommend I buy one? I am leaning towards getting one I will just put in a backpack as I have not found the conversion DH bike yet and don't want to worry about having a place to mount it. Thanks!

[@JohnnyNerdOut]

probably 6 weeks minimum...crazy battery shortage going on now

[@rickyn1135]

How do you know?If I buy,let’s say from Amazon; can I take it to a Technician of some kind and have it tested and than return it to Amazon? Danke

[@JohnnyNerdOut]

you can remove the cover like i did to verify the cells are what you paid for

[@rickyn1135]

@@JohnnyNerdOut Ok. I’ll do. Danke

[@banyanstudio]

Great video. Can you suggest a reputable source for batteries?

[@JohnnyNerdOut]

Em3ev

[@banyanstudio]

@@JohnnyNerdOut Thank you!! Your channel rocks!!!

[@Dan-un4vt]

Tip ,,, I have Always used LI-Po Batteries ! I have build my own pack from RC batteries ,,, now with over 2400,00 miles and work like New....!I see no reason to use a different type of cell? All you need to do is use the right battery charger and you are good to go.. Oh ,, and you can charge All your batteries in about 35 Minutes instead of Hours !!!

[@JohnnyNerdOut]

It’s nice having a lockable case though. I guess you could for them in the case with some extra work

[@dennisyoung4631]

Hence build your own?

[@JohnnyNerdOut]

If you have the patience and know how, absolutely

[@dks13827]

My Ancheer battery failed after 2 weeks. 4 slots. 1 and 4 ( red and black ) say 52 volts, good. all other tests say zero. comments ? is that normal ?

[@deltoncbaker]

Now they they don’t even deliver, they just take your money and send and old shoe. When you call they play dumb and claim shoe inventory mistake, leading to time delays so you can’t claw back your money through your credit card.

[@JohnnyNerdOut]

LOL yup

[@romantashevRT]

is Aliexpress reliable source? Even there are nice reviews from a particular buyer?

[@JohnnyNerdOut]

Totally hit or miss. It can be super sketchy.

[@FlyingFun.]

Defo watch what you are buying, some of those packs claiming 22ah and more barely have 8ah lol. I got a couple of liitokala 21700 20ah 48 packs though which turned out ok considering the price of £130 at the time, more like 16ah in reality but still worth it.

[@jasonpowell4084]

What sources would you recommend for batteries?

[@JohnnyNerdOut]

Me 😀when I have them in stock. Otherwise reputable ebike parts sellers

[@June4600]

@August Gronas I didn’t take mine apart but I got mine from EM3EV, so hopefully it’s the real deal

[@knightryderbelow]

what kind of battery would I need for super long commutes? The battery I can get the most mileage out of?

[@JohnnyNerdOut]

Are you talking about battery cell?Or battery capacity? Either way it really boils down to watch our capacity of your battery pack. Check out my other video on how to calculate how big of a battery you will need for how many miles you plan on riding

[@knightryderbelow]

@@JohnnyNerdOut watched a lot of your videos haven’t ran into that one yet. Thanks

[@JohnnyNerdOut]

@@knightryderbelow kzbin.info/www/bejne/m3u1e5KMrLWJqrM

[@KettlebellGunsmith]

And to think, vast majority of EV buyers have no idea what or how many cells they are getting. Please please do a video on how to take care of a battery to maximize it's life.

[@JohnnyNerdOut]

great idea

[@chrisgames6613]

I'm kinda bothered by this video. I don't like this kind of truth.

[@JohnnyNerdOut]

Ya. It sucks

[@debunkthejunk1]

Yah, the good cells aren't really made in China. This means the price per cell for your neighbor, or the guy in China are going to be the same in terms of wholesale price. So your local manufacturer can make a battery for about the same price as the place in China if it's made from quality cells.

[@hectorsueno8515]

*YOU NEED TO KNOW HOW TO DO MATH WHEN YOURE BUYING A BATTERY. FOR EXAMPLE IF YOURE BUYING A 52V 17AH BATTERY REGARDLESS WHAT BRAND, IF THE SELLER SAYS EACH CELL IS RATED 2500mAH, THEN THE BATTERY SHOULD BE 14S7P. THAT MEANS 14 X 3.7V = 52V AND 2.5AH X 7 IS AROUND 17AH. THE TOTAL NUMBER OF CELLS THEN IS 14 X 7 = 98. YOU DONT NEED TO TAKE APART THE BATTERY IF YOU DID THE MATH BEFORE YOU BUY*

[@willrobertson826]

No but you need to look inside the battery to verify cell count