Amazing video. So well explained and taught me a lot. Love these Segways! Keep up good work as very knowledgeable!

@fixitdad899

3 жыл бұрын

Thx so much for the positive feedback Kieran. Indeed - gotta love these Segways!

Thank you for this well explained teardown video, it helps a lot!

@fixitdad899

2 жыл бұрын

Glad it was of help to you Sebastian. Best wishes.

Excellent vídeo! Thanks yo take youre time to show us this!

@fixitdad899

3 жыл бұрын

Thanks Y! My pleasure. Glad you enjoyed. Thanks for watching. R.

Excellent video, I appreciate this a lot! Thank you.

@fixitdad899

2 жыл бұрын

Thx Josh. Best wishes on your e-endeavours

@alexdeko6847

2 жыл бұрын

Nn@@fixitdad899 nnnnnnmnnnnnn rrvgg

@alexdeko6847

2 жыл бұрын

Nn@@fixitdad899 nnnnnnmnnnnnn rrvgg

@alexdeko6847

2 жыл бұрын

@@fixitdad899 nnnnnnmnnnnnnv445f

Best disassembly video I have found for these packs! I found one of these scooters in the dumpster recently and can’t really see why it was thrown out. Thanks for the info!

@fixitdad899

3 жыл бұрын

Thx so much for kind words. Dumpster finds are the best! Amazing the gold that can be found in there. Scooter well my friend. My wife and I have found all sorts of new corners of our city as a result of these amazing inventions.

@SunsetSlimess

29 күн бұрын

Same here, found one in a dumpster. External battery charged up, internal battery is asleep. Hoping to wake it up and recharge it.

@fixitdad899

28 күн бұрын

@SunsetSlimess I discovered after I recorded video that there is a little brass reset button on one of the control boards - there is a video out there that shows that you can carefully drill a small hole in the battery case to get a paperclip 📎 in to hit that reset button to wake battery up. Apparently works sometimes if that's all the problem is. Good luck with project!

@SunsetSlimess

28 күн бұрын

@@fixitdad899 I had to open the case, half the pack was below cutoff voltage. I was able to charge that side with magnets and a bench power supply holding the wires to the side bars, then the pack woke up and charged normally. Works great now!

@fixitdad899

28 күн бұрын

@SunsetSlimess Nice! Any ideas on why only half the pack discharges like that? Never understood the why on that and discovered it on more than 1 pack. Glad that worked for you and that all went safely. Side note - My neighbor accidentally burned down their and our weekend places last summer. Not battery related but ... - I'm now paranoid about trying to boost Lithium anything! I lost all my escooters :( Found burnt out cells strewn about the ashes. Apparently cells can travel a fair way once they are 'shooooshing'. Anyway - may yours now bring you much pleasure. I've moved on to Wingfoiling for now - less risk of fire and a good workout to boot!🔥 😀 👋

The way to wake the bms up (no blue flashing light) is to apply 12 volts to the red and black wires, on the 4 pin plug. And boom good to go, if the cells are not buggered

I believe it's a 2p10s -- you had it backward. Each pair that shares the tab connection is paralleled (making a 3.6v @ 5.1 AH cell), which are then put in series to make 36v, 5.1AH = 183wh.

@fixitdad899

3 жыл бұрын

Thanks for watching and for the headsup...makes sense. Order of things does make difference. Appreciate you adding the wattage ratings too. Have a great day!

This is great information. I am wondering whether I could repurpose the cells in the plastic case. What is the diameter of the assembled pack?

@fixitdad899

3 жыл бұрын

Calipers say 49.33mm diameter...one side has flat face which is about 23mm across...when measuring distance from flat face to opposing side (quasidiameter?) It is approx 47mm

@fixitdad899

3 жыл бұрын

Thanks for watching and for feedback...yep, great little packs to repurpose: either case or cells. Best wishes on your project(s)

In your video, since all of your cells that you volt tested individually have good charge, what was the issue as to why the whole battery pack is considered dead?

@fixitdad899

3 жыл бұрын

Hey David - thx for watching and for commenting. Truth is that I don't know for sure. My guess is that the charging board..the top one of the pair has gone SNAFU. I'm not a technician- just a tinkerer. I'm in a bit of a jam to test the theory because I have no assurances that any of the charge boards I've scavenged are actually good. But the problem has to be that the circuitry in one of the two boards has activated cut-off to the cells. Much like happens in a hand tool battery that goes lower than absolute minimum charge. Not sure of why either. One small head slap for me is that there is a brass reset button on this top board. I probably should have tried researching that and tried pressing it before I ripped everything apart. Too late now. Might have been a case of just hitting reset. Sigh.

Do you know what a flashing red light mean?

Is it possible to run the battery without hooking up the tx/rx wires, and just use the -c/+c for charging and the other cable for discharge?

@fixitdad899

3 жыл бұрын

Hi Adnan ... not sure if I understand your question precisely but if you are hoping to bypass balance charging circuitry for any more than a very temporary duration I dont recommend but if you propose to utilize BMS on battery then... The TX/RX plug into the speed controller which in turn is supplied with power from the battery. Battery and TX/RX not connected directly. Pretty sure that so long as you are feeding 40v charge source direct into battery BMS there should be no issue. You can then draw the stored power out via the main power out cables. Just watch your current draw so you don't overload batt cables - these hub motors are approx 350w. Dont go hooking some 1500w beast up directly else the pixie smoke might happen.

Thanks a lot for the video. Do you have a video where you show how to change the bsm with the sidebars when the batterypack is good, thats the cheapest way for me to bring back life to my battery.

@fixitdad899

2 жыл бұрын

Hi Gurdal. My pleasure. Sadly no, I don't have such a vid nor have I attempted manouvre myself. Best wishes with the project and pls do record and post. I'd love to see it. Cheers

@doenerfreak87

2 жыл бұрын

@@fixitdad899 i have disambled the battery. It was glued on one side. After measuring the blockd ive found out that two cells where undervolted. I had to destroy the pins to get them out and charge them. Now theyre charged normally but the problem is to solder them back again. So it doesnt worked and thats why i cant gwt it togehter to test the bcm. It shortly blinked blue but then directly changed to red again constantly. I think when i get it togehter with stable soldering and change the bcm it could work again. Ive ordered a new battery on aliexpress because in you cant buy in germany wirhout getting poor🤣

@fixitdad899

2 жыл бұрын

Ya - they don't seem to be easily self-servicable units. Difficult to take apart without destroying some pieces. But there are some great parts in there that can be re-used in the worst case. Good that those two cells took a charge in the end. Best wishes with Ali B ... maybe they ship quicker to DE than CA?! Orders take a long time to get to Canada. Anyway, Happy Holidays to you and yours.

@fixitdad899

2 жыл бұрын

Maybe Santa will bring you a spot welder

@norfcalgreens

2 жыл бұрын

@@doenerfreak87 time to invest in a battery spot welder. i bought a cheep one on ebay that lasted about 20 welds and one of the cheap mosfets went south- easy fix. it makes rebuilding battery packs a breeze

what's the specs on each cell. what mah are they each or is any thing printed on them

Is there any way to revive a battery that is half dead like you explained? One side is near full charge while the other has less than a volt on all readings :( Thank you for the help!

@fixitdad899

11 ай бұрын

Hi Dabiel - sorry for slow response. I never did get to the bottom of why the packs were 1/2 discharging like that. Without knowing cause I've moved on from the dead cells. Once cells are that discharged, I wouldn't trust them anyway. Seen way too many stories about ebikes spontaneously going up in flames lately. Lithium can be so dangerous. Better safe than sorry methinks! Have a good one - thx for watching.

Any chance if you see this give me a reply, ive got a brand new es2 but batterys at 20v and wont charge (too low). Gunna open up and charge straight to terminals. Have you done this before?

@fixitdad899

3 жыл бұрын

Hey Marc I haven't 'bump charged' these packs but have done same to Ryobi 18v packs. Even have a vid for ya! kzread.info/dash/bejne/qmyZzcSxdKq8p9o.html It's the same concept. Before you dig in though...if your unit is new and warranty still intact. Would reco you swap for a new one. Way easier and keeps you in good stead for any future issues. If that's not an option I want to alert you to another potential issue with ES2s and ES4s. I had 'not new' ES2 do a strange thing on me. The external battery would charge fine but the internal battery started to 'drift'. Kept going lower and lower away from external level. I knew that if I let internal discharge too much I'd be in a pickle. Took things apart and it turns out that the junction point where electrical cables go into column from external battery pack has loosened over time. While external pack was off I was able to charge internal pack directly via it's original charge port..like on an ES1. I didnt have to bump charge because it wasn't completely discharged. Retightened and reassembled...all good now. I just want to give you this heads up because you're gonna want to know why your batt went to 20v. This issue 'might' be a possible cause. If you do open batt up you should check each batt junction like I did in video and isolate which modules are low. If they are all uniformly low that would be good. If some are low and some not. Bigger problems maybe. I would probably try to bump each module rather than all together. Less voltage required. Remember to keep amps low! Voltage just above where you start and slowly crank up as cell takes charge. Bump to say 3.3 - 3.5v per module. On board balance charger should take it from there. Low and slow and monitor temperature of cells. Best to do so outside. If they start to get hot... stop! Hope this helps and good luck on project. Post a link if you can.

@fixitdad899

3 жыл бұрын

Marc... sorry...Ignore all my banter about external battery packs! I messed up..your ES2 doesn't have an external pack otherwise it would be an ES4 Happy trails!

@heliumnetworking5103

2 жыл бұрын

How'd you gp with it mate

@fixitdad899

2 жыл бұрын

Hey Helium (Helium prices going crazy eh?!?) Assume you were commenting to the other chap but... Since original post 'jehugarcia' KZreadr came out with vid showing how to 'wake up' batteries. Couple of diff methods. In some cases all you have to do is drill in and hit a brass reset button on the control board. In other cases there are ways to supply bump current without opening pack. If you are in a DOA battery situation you might want to check his channel out. Best wishes!

We are trying to get the battery out. I haven’t found a video of that. We have the stem open and detached. How do we get past the ‘divider’?

@fixitdad899

Жыл бұрын

I used shop calipers ... basically a big compass with two adjustable arms. Feed tips into cavities and turn cap counter clockwise. Should screw out. I've heard chopsticks with rubber band pivot point achieves same. Good luck!

Do you know if I can mix the LG purple battery at 2650mah with the blue 2550mah, I had all LG and 2 blue batteries but couldn't get it the BMS to turn on, the batteries where charged up to 40V-4.2V and getting 40-42V total. Not sure if there is something else wrong with it or the BMS boards.

@mrlee6810

9 ай бұрын

I have also got a scooters that 1 batteries is charging faster than the others so it would cut off, I assume that will be more likely the BMS than the faulty battery.

@fixitdad899

8 ай бұрын

Hi Mr. Lee Apologies I dont have a good answer for you - I recommend you reach out to folks on a battery builders forum - my gut says you should never mix ampere ratings as it creates an imbalance - maybe if the 2 single cells have a higher rating than the rest it might be acceptable but I just dont know. I would assume other way around would cause undue risk i.e. adding in 2 cells with lower ratings. Best wishes!

hi! my son got one of these scooters from the dumpster but someone tried to fix it and left it disassembled but with almost all the things inside a plastig bag. also the battery is fully disassembled. meassured it 40V. DETAIL --> it misses that second board with the 4 pin connector. the dash doesnt display anything but when i press the ON button the ESC turns ON and the green led flashes 8 times. do you believe the scooter is able to run with a battery without that second board? before discovering that missing board I was thinking on purchasing a new ESC and Dash for it.... the motor seems to be functional because I tested it with a rc car ESC....

@marcioh123

Жыл бұрын

forgot to mention that the pack even without that board is fully balanced with the cells measuring 4.095V !!!

@fixitdad899

Жыл бұрын

Nice score! I highly doubt you can run reliably without 2nd board. But I honestly dont know for sure. Im.way better at taking things apart than putting them back together 😁 - best wishes with your fix - sounds like you have the know how to get that thing going. 👍

@marcioh123

Жыл бұрын

@@fixitdad899 thanks for your reply... I will keep trying to find out the esc led flashing code... it flashes 8 times... as it is impossible to see the actual code because the dashboard doesn't display anything... it is a little bit expensive to risk buying new parts for it... maybe is a good idea to first buy the BMS, then the Dashboard and finaly the ESC.... let's see... ciao from Italy

@marcioh123

Жыл бұрын

@@fixitdad899 got some news. I discovered hot the esc flash works. there is a long blink and sucessive blinks. the first , long beep is the decimal of the error code presented in the dashboard. mine was flashing 1 long blink, then 8 shorts. thats means error 18 that is hall sensor problem. after cleaning contatcs started to 2 long blinks then 1 short, meaning 21 (bms error! the missing board)... then I discovered that the black wire that goes from the esc to the dash was faulty. removed the connector from the esc board and soldered the cable directly to the board and ....voilaaa.... dashboard working, beaping and displaying error 21 (BMS)... the conclusion is that the scottter will not run without the bms board (safety). I will need to purchase the board now.

@fixitdad899

Жыл бұрын

Fantastic troubleshooting sir! Thx for explaining the codes and how you were able to read them. Best wishes on sourcing the part and completing the fix. The good news is these things are everywhere it seems! Usually in the middle of a pedestrian sidewalk unfortunately:)

hi my ninebot es1 only end up 10 to 12km every charge .. do you think I can change the battery cells individual? and how? thank you

@fixitdad899

3 жыл бұрын

Hi Noriel... my family of four have ES1 ES3 and ES4. I weigh over 200lbs. The lightest in family is about 90lbs. We have ridden on both flat terrain and more 'up and down' terrain. Most of the time we do not run in eco

@fixitdad899

3 жыл бұрын

..we run in sport mode. Our machines are not new...all have 500km or more. My observation is that the ES1 just doesn't have great range...especially if you run in sport mode ...up and down hills...with a belly ;) For comparison ...the cousin to the ES1 ..the "M365" have 30 cells in their battery packs. 33.3% more juice available. Not sure how you run but I personally think you are getting expected mileage for ES1. My recommendation would be to buy external add on battery pack to extend range and increase power. They just bolt on... pretty easy install. Makes it an ES3. Good luck!

@fixitdad899

3 жыл бұрын

I found it less expensive to buy a used ES3 and sell ES1 ... batt packs are about 400 dollars stand alone. Was cheaper for me to buy the ES3 than retrofit ES1

@fixitdad899

3 жыл бұрын

Re: changing individual cells. Pretty sure your cells as good as they can be else you'd probably not get even 12km...did you ever get better mileage? Is this a recent change/issue?

@fixitdad899

3 жыл бұрын

Changing out individual cells would be a very big job... you'd have to disassemble, identify bad cells, desolder BMS leads and take old nickel strips off. Source good matching new cells. Place new cells ...re-spotweld new nickel strips.. re-solder BMS leads...reassemble pack and hope you haven't messed anything up. Chances are new cells wouldn't be a good match for rest of pack and might cause rest of pack to age prematurely. But...that's how you'd have to do it.

Is there a trick to removing those plastic internal locking caps on either end? I am able to turn them about 45 degrees back and forth but can't get the slots to align with the metal guides inside the stem. Thanks...

@fixitdad899

9 ай бұрын

Hi Jed It's been a very long time since I removed mine. Going from memory I used a set of old metal measuring calipers with sharp points. (Like a compass from school days but with 2 legs) What I remember is having a challenge turning the plug counterclockwise in the tube thread until I used the calipers in the two slots/cutouts in those plugs. There is actually a tool you can buy that inserts into the tube and has two projections that fit into the slots. Think it's $50 or so. I'm way too cheap to buy it! Anyway .. I don't remember having to slide down a channel. I just remember having to spin counterclockwise a bunch to get it out. Does your tube have a thread along the inner surface all the way to the exit? That would be the tip off. All I can offer. Good luck with it!

@jedfehrenbach9470

9 ай бұрын

@@fixitdad899 Thanks! I also made a tool, out of two 1/4-20 bolts. It turns very well for abut 45 degrees, then stops hard against those two splines/ridges. No threading visible anywhere inside. It looks a bit like I have to break two tabs off to be able to turn them further. But I will fiddle a bit more before resorting to violence (haha).

@jedfehrenbach9470

9 ай бұрын

Mine is an ES2, by the way (with an external batter added on)

@SunsetSlimess

29 күн бұрын

@@jedfehrenbach9470 Did you remove the external battery mount bar? It also screws into the internal battery case. Once you get that removed, I used a long wooden rod like a broom handle and pushed it out.

@fixitdad899

28 күн бұрын

Great point about removing the mounting bar

I have a sealed in the box es1 (have had it 3 years) I tried to charge it but the green light never turns off and it won't charge. Anything I can do to get it to charge?

@subliminalhobo

Жыл бұрын

There's videos on KZread that say these internal batteries go into aleep mode and need to be woken up by weird means they used a paperclip in one of the connectors if i remember correctly i cant remember the names of the videos but they are on here

@fixitdad899

Жыл бұрын

Hi guys - there's a KZreadr "jehugarcia" who has a few vids detailing how to wake batteries up. If you google his handle and "ebike" or "battery" he should pop up Have a great day all!

Hi I have a es2 with external battery. I have been having problems getting it to charge fully only charges to about 85% then stops?? Plus some days it does not want to charge at all?? If I get to my destination say with 2 bars left of charge then I turn it back on when leaving the battery is completely flat?! Would you suggest a new battery? I did think of just installing a new bms but I think a new battery comes with that anyway. Any help would be much appreciated.

@fixitdad899

2 жыл бұрын

kzread.info/dash/bejne/dK1-uqyqnZzbos4.html

@fixitdad899

2 жыл бұрын

Hey Tim Have you seen my last video..link above. It sounds to me like it could be a loose connection between external pack and internal. Not sure but possible. I had similar issue where average charge between two batteries was not full charge because internal never had chance to fully charge. Have you checked internal vs external percentages on the app? Just reread your post... is it just external pack that stops at 85%? What % does internal batt charge to?

@MrCheeseman1982

2 жыл бұрын

@@fixitdad899 Hi there many thanks for your reply. I've already tried charging the internal on its own and it won't charge so I'm assuming it's had its day. Its very random some days they will charge half way then they'll charge to 85%? I've also checked connections between the 2 batteries and that all seems to be fine. I was going to get a new bms and try that but you get a new one with a battery anyway. I think I'm going to order a new internal battery and see if that fixes the problem.

@fixitdad899

2 жыл бұрын

Hmmmm...Do the voltages of internal and external match up? When you check app and you see say 50% or your 85% max state, is it on both batteries or is there a difference in voltage between the two? It's weird that internal won't take a charge directly agreed. If voltages are different, It (internal) might have dropped below minimum charge for charger/BMS to recognize it. Could try to bypass BMS and give it a brief bump charge to bring it up far enough for BMS to be happy if that is the case...or ya BMS could be done but...that would involve opening the pack up.= pain in keester Yep... might be time for a new replacement batt. Good luck with fix. Cheers R.

@MrCheeseman1982

2 жыл бұрын

@@fixitdad899thanks for your help much appreciated! How would I bump charge the internal battery? I think that's what happened, the internal battery has dropped below what the bms can recognise.

Internal battery won't charge. Led on charger still green. Replace battery unit can charging. Whats i replace dead battery only? Or replace bms?

@fixitdad899

3 жыл бұрын

Did you open battery pack? What is voltage of cells inside? If voltage above 3.0v on all your cells then likely the boards inside the pack that have failed. Make sure to try the brass reset button on top board in the battery. Cant really tell much else from charger being green. Good luck!

@fixitdad899

3 жыл бұрын

Hi Arif .... is your scooter an ES3 or ES4 by chance? With external battery? I just had an issue with internal batt not charging. Here is vid for what my issue was ... kzread.info/dash/bejne/dK1-uqyqnZzbos4.html loose connection from external pack

Can you tell me where I can get the tool to remove the battery?

@fixitdad899

2 жыл бұрын

I used a pair of metal measuring calipers. Stuck the two points in the two holes of the plastic retaining plugs and unscrewed them ... they are threaded. Then took a wooden dowel to push battery out once plugs/caps removed. I've heard you can use a pair of chopsticks to do the same or can stick a screwdriver into one hole and tap sideways with hammer to unscrew. Best wishes on your project!

Is it ok if it flashing blue??? Dont make sense…

are you the AVE guy also?...thx.

@fixitdad899

Жыл бұрын

Hi Chris - sadly no - I'm nowhere near as clever as that fella and my French swearing skills not up to snuff! He's awesome tho and I do count myself as a fellow subscriber to his channel. Have a great day eh! Thanks for watching.

Hello I need some help from you. I am from India and unable to get this battery pack. I have a basic carbon scooter without battery ( I had to leave the battery in Philippines due to air travel restrictions ) I am planning to build a battery pack and might need some info to build them. Please help.

@fixitdad899

3 жыл бұрын

Happy to try to help if you have a specific question but full disclosure in advance... I'm way better at taking things apart than putting them together!

@coderkamath7394

3 жыл бұрын

@@fixitdad899 Thanks. I might need some photos and measures so that I can 3d print the battery holders or spacers. There is no other way I can get my hands on them. I gotta 3d print some parts and redesign some Circuits.

@fixitdad899

3 жыл бұрын

Sounds like you are technically capable...I'm not familiar with "Carbon" reference. Is that a ninebot model? Anyway...Just curious.. can you source ANY premade scooter 36-40v packs locally? Reason I ask is that I picked up a 'junked' M365 clone that had a burned out hub motor for very cheap near me. I just wanted the 30 cell battery inside for an eskate project. Couldn't you do similar? Don't have to worry about BMS and soldering (pain). Just create an external case for pack and affix to scooter somehow ... extend and plug in your 36-40v leads and good to go. Might even end up with better range as pack could have greater number of cells than stock. Might not be as pretty as recreating Internal battery but way simpler. Just a thought. Best wishes.

@fixitdad899

3 жыл бұрын

It's not too hard to create aesthetically pleasing curved custom case for cells that you can attach to upright steering column via 3D design. Tip -You can make segments that stack to prevent risking print failure from tall z print heights. Glue them together to desired height...make top and bottom caps to seal. Voila

@coderkamath7394

3 жыл бұрын

@@fixitdad899 I mean a Generic China made Carbon Fiber scooter like this one kzread.info/dash/bejne/g2aWzrmrdbWroag.html&ab_channel=RCLifeOn In India there isn't any electric scooter like in other countries. I guess more that 95% People aren't even aware of its existence Electric scooter means a different thing in India So I am unable to get my hands on any parts. India and China also has a Trade war kind of situation so Chinese Imports are Blocked. My only way out is to build custom battery pack using 18650 that I can get here easily.

It is possible to use other trottinette ???

@fixitdad899

2 жыл бұрын

I think trottinette means scooter in English. If your question is: can you use a battery pack from another brand of scooter to run a ninebot? Answer .. probably but you'd have to be creative on how you attach/connect battery. Not sure how charging a 'foreign' battery would go or how software would react. If your question is could you use this pack on another scooter ... same answer really. Bonne chance!

@squayssan5352

2 жыл бұрын

@@fixitdad899 thanks, yes I will want to use for on another scooter

Probably just the reset button on the top board, I sell these used and tested.

@fixitdad899

Жыл бұрын

Hi Eric - thx for confirming - I did have a 'I probably should have tried pressing the little brass button' a few weeks after I recorded vid. After watching an @jehugarcia vid. Live and learn! Hey - question 4u. I had another unit where exactly 1/2 cells were near completely discharged and 1/2 were good/near full charge. Any ideas on what might cause that condition? Appreciated. Have a great day.

es2 error 51 battery zero. fix it?

@fixitdad899

3 жыл бұрын

Hi...not sure myself but one thread on a forum says that it has to do with IOT box ..(internet of things) on scooters that have been rentals. Probably chip that calls into the mother ship. Was your scooter a rental?

@fixitdad899

3 жыл бұрын

You live in Thailand? Chiang Mai? Beautiful!

Cells is Samsung or lg ????

@fixitdad899

2 жыл бұрын

Cells are branded 'EVE' ICR18650/26V in the packs I've opened. I've seen others with purple cells. Maybe range of cell providers

@squayssan5352

2 жыл бұрын

@@fixitdad899 thanks ! But it’s 26 volts !!! Not 36 volts ?

@fixitdad899

2 жыл бұрын

You'd have to look up spec sheet to see exactly what that means ... individual cells run between 3.7v and 4.2v The 40v a ninebot runs at is achieved by putting 2 cells in parallel and then stacking 10 of these 2 cell sets in series to get 40v.

@fixitdad899

2 жыл бұрын

secondlifestorage.com/index.php?threads/eve-icr18650-26v-cell-specifications.8390/

@fixitdad899

2 жыл бұрын

Confusing for them to use 26V in product number agreed. But does not refer to nominal or full voltage of cell