Battery Failure

DJMD · 2021-11-14T22:19:39+00:00

Hi! Nice to see your site. I’m new here. Stay with me. I just got a Fiebor e-scooter, 5,600W, 60volt, 36Ah. My problem is when I took it out for it’s first r...

Battery Failure

DJMD

DrScootLittle

Hey, I really appreciate it very much. I’m not use to this site and having trouble navigating. Is there anyway I can get you to say hello on my email address so I can go over a few other things. I received my scooter a couple of weeks ago and have only driven it twice. It worked in gear one like I explained but the moment I engaged dual drive, turbo or tried putting it in gear two it died immediately. Fiebor, the company I bought it from has given me the run around for weeks now. They claim on their home site that all replacement parts would be sent to me and they would pay shipping unless my scooter was outside the 12 month warranty. Now they are asking me to pay hundreds of dollars for a new battery to cover shipping. I filed a complaint with my bank and have asked for a charge back. They told me if I sent the scooter back I would lose it. It’s been one ordeal to get them to help me. They are in China and I didn’t know this. I wanted to know if a battery can behave like this? It will power on and at times let me ride in gear one. But like you said when I turn on other features that calls for more power it dies and no lights whatsoever comes on. After an hour or so it will come on, or it will come on the moment I connect the chargers. After that I remove them. I’m not sure if I told you that the scooter will run indefinitely laying on it’s side with turbo on, in gear 3 and dual drive. I don’t understand why it want with me on it unless it’s too much power with not enough life in it. Does that sound plausible to you? I just can’t find anyone to help me. Not even an e-scooter repair shop in town. So I’m stuck. Do you think if they send me a new battery this will correct my problem? Or could it be some type of a broken component? I personally feel that it is a battery problem. So I may end up having to buy a new battery myself and they run around $600.00. What else do you think it might be?
I certainly appreciate your time, courtesy and input.
My email is DWJRN@AOL.COM.

DWJ

Timotis

DJMD Can you remember the Voldtage it was at when it stopped the first time? And when you put it on the charger, did you charge it up again or just put it on and take itr off then run it?

I have the same issue at the moment with my Weped. So its 72v (full 84v) when it gets to 75v it cuts out and wont turn on, I can just plug in the charger for 2 sec unplug again and and it turns on. (so not really charging just plugging in the charger)
if i dont charge it and try and ride and it sags to 75v or below it will cut out. So if i charge it anywhere from 76v to 84v full its fine, but when it get back to 75 it cuts

Currently havent it checked out at the moment, looks like either a faullty BMS or bad goup of cells

I suggest you try and pin point when and if it cuts out at the same voltage area or if its all the time at any voltage?

ive tested this a few times now

DJMD

Timotis

Thanks for the response. The company is sending me a new battery but still not sure it’s a battery issue. I’m 90% sure though. When I start out for a ride it’s at 61 or 62Volts. It happens so quick, as soon as I take off it will run for about 20 seconds and either die on me by itself or the instant I hit dual drive or put it in a higher gear. After it happens the voltage readout is jumping so fast up and down you can’t read it but it goes off after about 10 seconds too. I feel sure it’s a bad battery. What should the voltage say right now on a fully charged 60V 30Ah battery. Mine is 62.1. I feel if it was some component or something like that it wouldn’t run at all. The way it’s behaving seems like the battery. What do you think?

Timotis

A full 60V system would be 67.2V fully charged
See a great voltage chart link done by Justin here
https://electric-scooter.guide/guides/electric-scooter-battery-voltage-chart/

Thats great they are sending you a new battery, least if this isnt the issue it will count the battery out. And you’ll have a spare battery! But sounds to me like its the battery or BMS (battery management system) with in the battery.

So when it turns off, do/can you plug the charger in for like 1-5 sec and take it off and it will be normal again and start up? or do you need to leave the charger on for a while for it to normalize?

DJMD

Timotis

Hey, thanks for that. I’m praying it’s the battery. I start out on a full charge before I ride and it only charges to 61 or 62.2. After I take off and turn on dual drive or turbo mode it dies. The moment I connect the charger it turns it back on again. Or, if it sits there with the key off for about an hour it will come back on. But as soon as I ride it after about 15 seconds dies again. That sounds like battery doesn’t it? Mine should read higher than 61.

DJMD

Timotis

This may sound stupid but if it’s the BMS would a new battery correct that or is it a separate component?

DJMD

Timotis

If mine should charge to 67.2 about how low would it have to get to turn off? Or, does that vary? The highest mine will charge is 64.2. As soon as it hits about 62 or 63 it dies. Shouldn’t it be able to drop lower than 63 before it dies? And one last thing, if my new battery charges up to 67.2 does that mean from now on when it drops to 62 or 63 it will cut off? What about that P setting that addresses the battery? I wonder if I can lower the setting for the scooter not to turn off at whatever it’s set on? Looks like if I lowered it the scooter may run longer until it reaches whatever I have it set on. I’m not too familiar with that setting. I don’t think you’re supposed to change it cause it could damage the motors.

Timotis

So BMS is attached to the battery pack and enclosed in it. BMS’s can be removed and changed. So if your getting a new battery it will come with a BMS.
If the new battery fixes the issue you are having, then it means there was an issue with the old battery.

DJMD

Timotis

Hey, thanks a lot. Hopefully it will be the battery. If not can you think of anything else?

Timotis

DJMD Yes fingers crossed it the battery, if not it could be a few other things, one of the hub motors, controllers…….

Does anything come up on the LCD display when it shuts down? any red warning symbols?

DJMD

Timotis

Tim, after it dies I turn the key off then back on and the voltage readout just jumps up and down real fast then it goes out. There’s not enough power for the round read out/mph to come back on. It goes out.

Timotis

Sounds much like the issue I have with my Weped battery, try and turn on and the volt readout goes crazy but no power.
I can fix this by just simply plugging the charger in then unplugging again (so its plugged in for like 2-5 sec max) - then i can turn the scooter back on with no issue. But them i try and ride it again it turns off (mine cuts off at 75v every time) - so i can charge it up to full 84v and its all fine till it runs down to 75v……

does plugging the charger in and unplugging it allow you to turn it on again as normal?

DJMD

Timotis

Yes. The moment I plug in the charger the controls come on again. Mine only charges to 64. I can ride it about a mile and once it drops to 63 it dies on me. Maybe it’s your battery as well? I exposed the battery and wires and found one tiny yellow wire not connected to anything. The manufacturer is trying to help me isolate it.

Timotis

The fact yours charges to only 64V seems like there is an issue with the battery for sure.
Mine charges fully to 84v, but only cuts out at 75v, where it should be able to run down to about 68v (mine is a 72v system)
So fingers crossed for you man, this new pattery helps you.

The yellow wire, does it have a connector on the end?

DJMD

Timotis

The wire has a little metal spec on the end but no connector. I looked at two others that it could possibly go to but nothing seems to have been pulled out. It’s just there. It’s a very small, tiny wire.

Timotis

DJMD So a 60v battery should charge fully up to 67.2V which is 100% and down to 48v which is 0% (though idealy you shouldnt run your battery down to 0% and also most batteries in many of these scooters the BMS wont allow you to, most BMS’s actually cut off/shut down for a 60v battery would be around/between 52-54V.)

So two things, yours isnt even charging up fully, meaning there is an issue with the battery, esp if the scooter is new. And secondly, that its cutting off/shutting down at 62-63V, where it should be able to run down to 52-54V…..
Soundling more and more likely a fualty battery, which should be a simple fix when the new one arrives, unplug old and plug in new and fingers crossed its fixed

P-settings wont change anything for the battery, its controls many other things on the scooter, again refer to this chart by Justin, a great overview of most P-setting controls and what they do and control/change
https://electric-scooter.guide/guides/electric-scooter-psettings/

I wouldnt change anything at the moment if i was you, just see if this battery is the fix first…

DJMD

Timotis

I appreciate you explaining that. I had no idea, as I doubt most do at what % their battery is expected to get down to. It’s certainly not in the manual. I’m finding that I’m recalling have to dig for info regarding this scooter. It can be complicated. Thanks again.

Timotis

No problem, Was a time where I also had no idea, its the help of this forum and others that helped me understand.
Please let me know how you fair, im keen to hear of the battery swap fixes the issue for you.

DJMD

Timotis

Thanks. Unfortunately I am now getting the run around by the manufacturer in China. They have promised me a new battery for several weeks now and have continued to tell me it was on it’s way. Now I’ve learned it hasn’t even been shipped yet. What a mistake I made purchasing from the manufacturer in China. I had no idea that I had. The scooter was sent to me out of their warehouse in CA. Dealing with them started out well but now it’s like pulling teeth trying to get them to send it. It’s been one promise and one excuse after the other. It wouldn’t surprise me now if they ever send one. They told me last night (they’re 14 hours ahead) that they can’t find a carrier to deliver it. I told them to use UPS, Fed Ex or the US postal service and they said it was a battery. UPS told me of course they will ship a scooter battery. Now I’m not even sure given all the safety guidelines in place what to believe. But I know millions of batteries are shipped by companies each day all over the world. Do you know if this has any truth to it or are they playing more games with me? If not one of those three then who? I’ve had it with them. I’m about ready to purchase my own and say the hell with them. I contacted my bank and stand a good chance having a charge back issued me. I’ve also reported them to Consumer Affairs Fraud Division. I didn’t realize dealing with China and other foreign countries was this tough. From what I understand it’s quiet common for them to disregard any extended warranty you may have with them. I am furious over this and will never do it again. Had I been smart I would have waited until the seller on Amazon got more of them in stock and bought from them. At least I would have had someone from the states upholding my 12 to 24 month warranty. Live and learn. Any suggestions to make them step up to the plate and honor this warranty? They have my money and it appears that’s all that matters to them.
I appreciate all you’ve helped me with. I’ve learned a lot from you.

Regards,
Doug

DJMD

Hey guy. The company has finally got me a new battery being shipped. It’s scheduled to arrive Friday. Something just tells me that the battery will charge up to around 87 but like the one I currently have will die on me when it gets to 62. Right now it charges to 84 and shuts off at 82 or 83. If this happens again do you have any idea what might be causing it not to run until it gets to 52 to 54? What would I need to look at next. But a new battery might do the trick. I’m just not sure.