Specialized Warranty Expired - battery failure, what are my options?
- Thread starter GZA
- Start date
cimi74
Member
I have turbo levo M2 700wh battery ... third green blinking light. 
Who can help?
Who can help?
Hello. I have bh atom x bike. Brose motor. I want to use specialized battery for it.
I have one but it is blocked.
This battery's have two boards. When I conect them - they don't start.
When I give 3.7 v to the border with mcu it start but show 0 percent.
The brose morot battery has 6 connectors.
Blu and green - flash
Black and red - power.
And do you know for what are yellow and brown?
I have one but it is blocked.
This battery's have two boards. When I conect them - they don't start.
When I give 3.7 v to the border with mcu it start but show 0 percent.
The brose morot battery has 6 connectors.
Blu and green - flash
Black and red - power.
And do you know for what are yellow and brown?
Also has anybody already seen this video.
In this video man has brose motor , display from my bike bh atom x and he made some kind of battery emulator.
With this bord you can use any battery with brose system.
In internet there are such words for Yamaha and bosh protocols
In this video man has brose motor , display from my bike bh atom x and he made some kind of battery emulator.
With this bord you can use any battery with brose system.
In internet there are such words for Yamaha and bosh protocols
cimi74
Member
The battery worked fine for 2 days after we bought it second hand... then on the third ride bike turned off after approx 6 km ... after being off for one hour .. it turned itself on again ... the capacity was as before. Now that repeats every ride.That would be me
How long ago it manifested this symptom? Prior to that event, were there any concerning signs? (eg. capacity loss, interruptions when low state of charge). Does the TCU turn on or not?
Ok, so it works intermittently. And you got the 3rd led blinking when you try to charge it?
Also, how many cycles? You said you bought it second hand. Any signs of case opening? Did you wash your bike with high pressure water ?
The fact that it's still powers on is a good sign. But in order to know more, we need to have physical access to the battery. Let me know if you want to send it to our workshop for a complete diagnostic/repair.
Also, how many cycles? You said you bought it second hand. Any signs of case opening? Did you wash your bike with high pressure water ?
The fact that it's still powers on is a good sign. But in order to know more, we need to have physical access to the battery. Let me know if you want to send it to our workshop for a complete diagnostic/repair.
If the cells reach 0v, you can safely dispose them, do not try to charge them or it might end up messy 
Assuming the other banks are good (balanced with max delta of 20-30mV), you can try to replace the 3 faulty banks with same cell type. But if the rest of the battery cells are used (lower capacity) their voltage will deviate from the new banks and BMS will give an error.
Also, even if you replace all the cells, you need to unlock the BMS in order to used it again.
I would say the only reliable solution is to replace all the cells.
Assuming the other banks are good (balanced with max delta of 20-30mV), you can try to replace the 3 faulty banks with same cell type. But if the rest of the battery cells are used (lower capacity) their voltage will deviate from the new banks and BMS will give an error.
Also, even if you replace all the cells, you need to unlock the BMS in order to used it again.
I would say the only reliable solution is to replace all the cells.
Hello! Today I had a problem with my turbo levo. When I connect the charger, the third light (on the battery) starts blinking green. Please tell me how to solve this problem? I would contact you for repairs, but I am from Ukraine... I also have a good friend who assembles various electric bicycles like sur-ron, maybe he can help me, but he needs to understand what needs to be done. I am ready to pay for your help!
I have a 2017 Vado whose battery looks like PetronP's. After some rain, it doesn't seem to charge anymore and now I'm getting a single flashing LED on the far right. Is the BMS locked? What's necessary to unlock it?If the cells reach 0v, you can safely dispose them, do not try to charge them or it might end up messy
Assuming the other banks are good (balanced with max delta of 20-30mV), you can try to replace the 3 faulty banks with same cell type. But if the rest of the battery cells are used (lower capacity) their voltage will deviate from the new banks and BMS will give an error.
Also, even if you replace all the cells, you need to unlock the BMS in order to used it again.
I would say the only reliable solution is to replace all the cells.
Most likely water damage on the PCB. Either charging circuit failure or firmware lock because of faults recorded. You said it's not charging, how about discharging? Does the bike still turn on?
Water would have most likely gotten into the contacts between the battery and the bike. The BLOKS computer just flashes part of the lowest portion of the battery icon and nothing else turns on. It's possible the BLOKS system is damaged too but I don't want to spend the money on upgrading to TCD-W unless I'm sure I can fix the battery because the cost of a battery is more than some new bikes.
When pressing the power button, I measure 3+V that's supposed to power the computer but no voltage on the 36V rail.
I don't see anything obviously wrong on the PCB. What I presume is a big fuse measures about 4ohms. I'll probably desolder that to see if it's the problem. What else would you recommend I check?
Hi! Can you please help me with my question? Do I need to reset the BMS?
If the battery won’t output voltage on 36v rail when it’s turned on and the fuses/mosfets are ok cell have the same voltages on all bancs, ntc sensors ok, it might have a firmware lock. I can help, but I need physical access to the BMS board. If you’re in the EU, you can send the board and I will check/unlock it for you.
Gabriel Bobby
New Member
Really appreciate this discussion, only source of reliable and understandable information as I troubleshoot an old Vado battery. After months of degrading capacity and then a few more months sitting fully charged in California winter (very mild). The bike ran to ~60%, then motor turned off, and the battery will not take a charge. When I power on 3 of 5 LEDs on the battery light up (same ~60%) but bike shows the dead battery icon. Took the battery apart and got these voltages:
Measuring from different cells to negative show 5 different sections or banks?
Measuring across single cells, gets a few different voltages
So I'm wondering if I can charge up the low (3.3v) cells to generally balance them and have the BMS resume normal operations? Taking apart the battery and replacing cells is another option, but seems much more difficult.
What triggers the BMS Permeant Failure mode (has it already happened)?
Measuring from different cells to negative show 5 different sections or banks?
| Bank | Cumulative | Voltage |
| 1 | 7.5 | 7.5 |
| 2 | 14.6 | 7.1 |
| 3 | 22.1 | 7.5 |
| 4 | 29.7 | 7.6 |
| 5 | 37.1 | 7.4 |
Measuring across single cells, gets a few different voltages
| 3.81 |
| 3.79 |
| 3.3 |
| 3.65 |
| 3.82 |
| 3.78 |
| 3.6 |
So I'm wondering if I can charge up the low (3.3v) cells to generally balance them and have the BMS resume normal operations? Taking apart the battery and replacing cells is another option, but seems much more difficult.
What triggers the BMS Permeant Failure mode (has it already happened)?
Minerillo_MTB
New Member
Hi, @cream i need unlock my bms...
After washing the bike, it never turned on again. The battery showed the short-circuit sequence (led 1-3 and then 2-4).
I thought it was the TCU and replaced it as it was wet and the battery was still the same.
Connecting the motor with 36v external I found that the motor torque sensor is wrong as it has a resistance of 2.5ohm and if I connect the sensor the TCU turns on and off. But if I disconnect the sensor the tcu stays on showing engine and battery error.
Then I disassembled the battery, disconnected the bms, cleaned everything and reassembled it, now I have the led 1,2 and 4 fixed green all the time (fp state). I have read that it will discharge itself until it reaches 30% (I have connected some fans directly to the BMS power supply to speed up the discharge process), is it supposed to unlock itself when it reaches 30%? Do you know how I can unlock it? All the cells were balanced and everything was correct.
Thanks!!!
After washing the bike, it never turned on again. The battery showed the short-circuit sequence (led 1-3 and then 2-4).
I thought it was the TCU and replaced it as it was wet and the battery was still the same.
Connecting the motor with 36v external I found that the motor torque sensor is wrong as it has a resistance of 2.5ohm and if I connect the sensor the TCU turns on and off. But if I disconnect the sensor the tcu stays on showing engine and battery error.
Then I disassembled the battery, disconnected the bms, cleaned everything and reassembled it, now I have the led 1,2 and 4 fixed green all the time (fp state). I have read that it will discharge itself until it reaches 30% (I have connected some fans directly to the BMS power supply to speed up the discharge process), is it supposed to unlock itself when it reaches 30%? Do you know how I can unlock it? All the cells were balanced and everything was correct.
Thanks!!!
Minerillo_MTB
New Member
@cream I have already solved the problems with the motor and wiring. Now I just need to unlock the BMS which is in FP state (led 1,2 and 4 on) to be able to use it... what tools are needed? I suppose that it will be necessary to do something to it by firmware... in the specialized shop they can't do it?
No, Specialized won’t do it. There might be others that can unlock it, I couldn’t find anybody at that time, so that’s why I started to work on this project.
If you like, you can send the battery to me and I will unlock it. It cannot be done remotely.
Miguelthefish
New Member
I’ve opened a few. If it’s BMS related fault, I can fix, usually. I don’t replace the cells on that model (I haven’t manufactured custom nickel tabs for it), but if somebody else do that, I can unlock or reset the BMS.
What’s the problem with your battery?
Miguelthefish
New Member
It’s just dead
Wife’s bike, barely rides it (u see 200 miles)
Didn’t respond to charging, tried replacing tux battery, shop says battery is dead
Ok, got it. Probably it was stored too long with low charge. Normally I would have told you to send it to our workshop for a proper diagnostic. But as you're from outside EU, I cannot help, unfortunately. Shipping Liion batteries outside EU is very complicated. There's also the customs...
Miguelthefish
New Member
Oh,, yeah. that’s probably it and also thought you were in US
Do you think replacing cells could get it going again? Really don’t want to spend $900 on a battery for a bike that’s only worth $2500
No, I'm from Bucharest/Romania 
I cannot say for sure but most likely the BMS has firmware locked so unless you find somebody in US that can unlock it (if needed) I don't know if it's worth to rebuild it.
In Europe, you can find them at 250-300Eur, in good condition maybe worth to check online marketplaces (eg. ebay).
I cannot say for sure but most likely the BMS has firmware locked so unless you find somebody in US that can unlock it (if needed) I don't know if it's worth to rebuild it.
In Europe, you can find them at 250-300Eur, in good condition maybe worth to check online marketplaces (eg. ebay).
Ragon
New Member
Hello
I live in Portugal and I have a Specialized E-bike Turbo Levo Hardtail Comp 6Fattie, which I bought in 2018. After 5 years and 300 km, I had to change the motor (€800) and now, after 7 years and almost 400 km, it was the battery that gave the error.
I contacted the brand's store and they said that the battery has 35% charge, has 17 cycles, and can't connect to the store's system or the mobile phone APP, so they can't do anything. They suggested a new one (€750).
I find it strange that a bike that has been ridden so little has never been washed in a pressure washer, has never had any accidents, has been stored in storage and then this problem happens.
What do you recommend I do?
I'll try to send a video showing the error message.
Thank you.
FMendes
I live in Portugal and I have a Specialized E-bike Turbo Levo Hardtail Comp 6Fattie, which I bought in 2018. After 5 years and 300 km, I had to change the motor (€800) and now, after 7 years and almost 400 km, it was the battery that gave the error.
I contacted the brand's store and they said that the battery has 35% charge, has 17 cycles, and can't connect to the store's system or the mobile phone APP, so they can't do anything. They suggested a new one (€750).
I find it strange that a bike that has been ridden so little has never been washed in a pressure washer, has never had any accidents, has been stored in storage and then this problem happens.
What do you recommend I do?
I'll try to send a video showing the error message.
Thank you.
FMendes
Ragon
New Member
Thank you for your quick response...
Do you think you can solve my problem?
If you can fix it, how can I send the battery to you?
What would be the likely costs?
Excuse my google translation
Do you think you can solve my problem?
If you can fix it, how can I send the battery to you?
What would be the likely costs?
Excuse my google translation
Pm sentThank you for your quick response...
Do you think you can solve my problem?
If you can fix it, how can I send the battery to you?
What would be the likely costs?
Excuse my google translation
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