Thanks for the tear down, I have a bosch system on my commuter, I have been looking at a conversion kit on another bike, and this has convinced me that's a brilliant idea, rather than committing to another bosch which can't be serviced DIY, however I will add, my bike from 2018 is still going strong, after one early motor failure, it was fixed under warranty no issues since.
So it is a 36v 13.4ah battery with 40 cells so cells must be 3.35ah 10S4P. They are arranged in 4 blocks and, from the video, it looks like the 10 cells in each block are configured in 2x4P blocks plus 1x 2P block.
I had the same battery in my Trek Powerfly, it failed after the 3rd charge, completely dead, It was replaced super quick by bike dealer who told me it seems to be happening with more regularity, so far the replacement is good, 30 charges later.. great video, thanks.
That clip you are wondering what it is, is part of the attachment that secures it to the bike, it is sort of a safety latch, you unlock the battery with a key and the battery pulls out slightly from the bike frame and is stopped by that safety latch, you then have to press on that clip to remove it from the bike, safety latch like on a car hood.
i know im asking randomly but does someone know a trick to get back into an Instagram account?? I was stupid forgot the password. I love any tricks you can offer me
@Colt Paxton i really appreciate your reply. I found the site through google and Im waiting for the hacking stuff now. Seems to take a while so I will get back to you later when my account password hopefully is recovered.
it is the same as powertube 500 with another row of batteries on top. And the 750 is like 625 with another row on top. So the question that remains is how much amperage the cells have.
good afternoon. I live in Brazil and I have a bike with an engine Shimano E 8000 and BT E 8035 battery, I would like to know if the dimensions of the BT E 8036 are the same, as I would like to exchange it or if possible send the length in centimeters. Thank you very much in advance.
When a fully charged PowerTube 500 (about 6 months old) is fully charged and losses 40% of the capacity in 3 days, (2 lights on the battery check), is that normal? What is the standard discharge % about?
How much are you riding it? In what mode are you riding? Mine is 3 years old now and just beginning to lose steam, but I'm topping it up all the time. Sometimes, I let it go to zero and barely get home, but if you ride in Tour or Eco all the time like I do, it's not bad. Get about 49 miles on a charge.
Lesson learned from watching this video is don't ever attempt to repair a lithium-ion battery, be it Bosch or any other make unless you really, really, really know what you're doing.
Thanks for valuable visual info and your opinion, was looking into getting used bike with same battery and gonna think twice now.. Disappointing build and design from bosh for such overpriced item... Would you have best 2-3 batteries to recommend based on quality/reliability and longevity? Regards
These are the best cells you can buy and I build batteries with it. The best you can do is to build your own from these cells and buy a bms for 50 dollars. Then you know what you got.
@@fayezmohammad745 Yes, but on ebay guys sell BMS for this price but as they say it is not checked (whether it is defective or not). I am trying to buy BMS for powertube 625 but could not find yet.
I have a haibike the bosch mote has the 5 prong connecter ive found a new battery with only the red and black leads id there a change i can make it work
Good vid well explained. How could they have improved this shape of battery? They purposely aim for this shape to clip into frame cutouts so they bike appears to not look like it has an internal battery. Thanks, thumps up.
So is there a way to reset the bms, its becuase that there has been a lot of problems with the powertube battery, so if you do not update the battery before first charge it will shot completly down and you will get a new one from bosch. Anyone know how to make the battery back to life again.
Congratulations for the video, very instructive and it has helped me, I have a query: to connect with the Bosh connector of 3-wire battery (positive, negative, the other) as it would connect to a non-bosch ebike motor that only has 2 wires current (positive and negative). I don't have much knowledge of electronics.
You will need positive and negative wires of 42v charger and the third wire need to be positive 5v source and negative together. The 5v supply will enable the charger to work and it acts like a key. 👍
Dipende dalla batteria che stai utilizzando. Nella maggior parte dei casi basta una scheda che gestisca entrambe le batterie. Se sei interessato noi in azienda eseguiamo questo tipo di lavoro. Inoltre costruiamo i nostri range extender!
how great and easy it would be if they are made consumer friendly, just screw the bottom off, and the cells slide out, and you can insert new ones, and done.. Just like AA batteries. Much less e-waste and easy repairs this way. It's a nasty thing they are doing with e-bike batteries. They really want to sell you a new battery every 2 years. They could make a 10 year lasting e-bike battery easily using LiFePo4 cells and decent battery management. Also, let the user choose to charge to a custom level like 70 or 80%, make your battery last alot longer, but thats not what they are interested in of course. Proof...? 1) batteries are way overpriced 2) no user defined charge level 3) no internal reserve capacity margin implemented 4) no slower charge speed settings 5) prevents third party batteries 6) prevents the use of smart third party chargers that can extend your battery life 7) no use of long life cells like the proven LiFePo4 cells 8) no active cell balancing promotes charging to 100% 9) range extenders are not used or charged in paralel and requires to charge to 100% And this is prety much the formula that all ebike builders follow. The only alternative is building your own ebike. There is just no incentive for them to do it in any other way, the amount of profit on batteries over de lifetime of the ebike are huge. I had a DIY ebike with a LiFePo4 battery that lasted for almost 10 years , always fast charged to 100%. With slower charging and limit to 80%, it would last at least 20 years for sure. And costs half that of what Bosch charges for the same capacity. The same is going on with Mobile phones BTW. They don't give you the option to charge slower or below 100%. Even apps are prevented from doing this.. Only way is to use an app to let you know you need to pull the plug at a set percentage. Making batteries also hard to replace, making sure people keep buying new smart phones, even if it's just because of a degraded battery.
My huawei phone let's me limit the maximum charge to extend battery life. Really is a sign of the times that you have to go to China to get products you can fix and repair and aren't totally disposable ripoff.
They definitely should be make these more service friendly for professionals, but Lithium batteries are easily nudged into thermal runaway if mishandled, so I guess these system have to keep consumers from attempting DIY repairs. I worked out how long my battery charger took to take my battery from 20% to 80% and added a smart plug to switch it off... when I cared to. These days, I don't baby the battery, it's 5 year old and still going strong.
bbrain yes you are right. The bms of the bosch powertubes goes into a locked state when it senses a cell being disconnected or even below a voltage threshold. I would really like to know if someone managed to reset/unlock the bms or that bosch made this impossible.
@@BaukeP in theory if you could fit a BMS in there and remove the Bosch system you might get it to work? I cant Imagine that the system sends anything more then "power and voltage state" the BMS should control the rest without input from the bike. The Bike is really just looking for Power from the pack.
@@Xyphren I would really like to hear someone who has tried this. The Bosch bms does also balance the cells inside the pack. Maybe it's possible, but the availible space inside the pack is very limited.
In the bosh powerpack ( older) i removed the factory bms and used a geveric One. However the powerpack returned to work as a "generic" battery very good but didnt work anymore with the bosh motor.
Damn, i just built a 48v 13s5p battery with a chinese hailong case and a chinese 30a bms, compared to my diy battery this bosch seems made by Nasa lol XD
That's what you call engineering overkill... I doubt they even repair these when they get broken while in warranty. Probably just replace it with a new unit and therefor not requiring battery repair centers. At the same time making it impossible for the user to repair it via 3rd party out of warranty and thus making him buy new overpriced over engineered pack.
Thanks for the tear down, I have a bosch system on my commuter, I have been looking at a conversion kit on another bike, and this has convinced me that's a brilliant idea, rather than committing to another bosch which can't be serviced DIY, however I will add, my bike from 2018 is still going strong, after one early motor failure, it was fixed under warranty no issues since.
So it is a 36v 13.4ah battery with 40 cells so cells must be 3.35ah 10S4P. They are arranged in 4 blocks and, from the video, it looks like the 10 cells in each block are configured in 2x4P blocks plus 1x 2P block.
I had the same battery in my Trek Powerfly, it failed after the 3rd charge, completely dead, It was replaced super quick by bike dealer who told me it seems to be happening with more regularity, so far the replacement is good, 30 charges later.. great video, thanks.
There has been an error for some of them. So the error comes becuase that the battery has not been updated before first charge.
That clip you are wondering what it is, is part of the attachment that secures it to the bike, it is sort of a safety latch, you unlock the battery with a key and the battery pulls out slightly from the bike frame and is stopped by that safety latch, you then have to press on that clip to remove it from the bike, safety latch like on a car hood.
i know im asking randomly but does someone know a trick to get back into an Instagram account??
I was stupid forgot the password. I love any tricks you can offer me
@Ryder Kairo Instablaster :)
@Colt Paxton i really appreciate your reply. I found the site through google and Im waiting for the hacking stuff now.
Seems to take a while so I will get back to you later when my account password hopefully is recovered.
@Colt Paxton it did the trick and I now got access to my account again. Im so happy:D
Thank you so much, you really help me out !
@Ryder Kairo No problem xD
Which manufacturer (Sony, Panasoninc, Samsung, LG?) makes the cells used in the Bosch PowerTube ebike battery?
Traducirlo porfavor
Anyone know what the 2021 bosch cx 625wh batteries use, as far as cells , 18650 or 21700??
nadie lo sabe?
It's the same dementions so I think 18650's my question is witch 18650's
it is the same as powertube 500 with another row of batteries on top. And the 750 is like 625 with another row on top. So the question that remains is how much amperage the cells have.
The cells they use 18650 with 3.4 ah capacity.
4 x 3.4 = 13.6 ah battery. 500 w
5 x 3.4 = 17 ah battery 625 w
6 x 3.4 = 20 ah battery 750 w
@@fayezmohammad745 ❤
good afternoon. I live in Brazil and I have a bike with an engine
Shimano E 8000 and BT E 8035 battery, I would like to know if the dimensions of the BT E 8036 are the same, as I would like to exchange it or if possible send the length in centimeters. Thank you very much in advance.
is it still impossible to rebuild this battery pack after all the cells got discharged completely?
I dont believe bosch had has any protection against that. However we have ONLY repair batteries that could be charged to ensure they are working.
Hi doc. Would you reuse cells from a battery pack that got wet, but not rusty?
When a fully charged PowerTube 500 (about 6 months old) is fully charged and losses 40% of the capacity in 3 days, (2 lights on the battery check), is that normal? What is the standard discharge % about?
How much are you riding it? In what mode are you riding? Mine is 3 years old now and just beginning to lose steam, but I'm topping it up all the time. Sometimes, I let it go to zero and barely get home, but if you ride in Tour or Eco all the time like I do, it's not bad. Get about 49 miles on a charge.
My 625 doesn't discharge at any noticeable rate. Sounds like you had a bad cell. Commenting for anyone else finding this later.
Lesson learned from watching this video is don't ever attempt to repair a lithium-ion battery, be it Bosch or any other make unless you really, really, really know what you're doing.
there are other brands less complicated
Oh yeah, you can turn your battery into a house fire easily, but if you know what you're doing, it's not impossible on a simpler battery.
Best day , can fix ebike bosch classic battery BMS ?
LEDs 2 and 4 flash. What can be the error?
Hi man, i can find on the powertube the date of costruction? Thanks!:)
Kul att du kör en bosch skruvdrage när öppnar ett bosch batteri😂
Thanks for valuable visual info and your opinion, was looking into getting used bike with same battery and gonna think twice now.. Disappointing build and design from bosh for such overpriced item... Would you have best 2-3 batteries to recommend based on quality/reliability and longevity? Regards
These are the best cells you can buy and I build batteries with it.
The best you can do is to build your own from these cells and buy a bms for 50 dollars.
Then you know what you got.
@@fayezmohammad745 Thank you for reply, will do some research on it
Bafang!
Bosch is German 💩
@@fayezmohammad745 Yes, but on ebay guys sell BMS for this price but as they say it is not checked (whether it is defective or not). I am trying to buy BMS for powertube 625 but could not find yet.
I have a haibike the bosch mote has the 5 prong connecter ive found a new battery with only the red and black leads id there a change i can make it work
NO! It has Unique Can Bus activator in both battery and ebike. so cannot be used with any other battery.
Great video.
Good vid well explained.
How could they have improved this shape of battery?
They purposely aim for this shape to clip into frame cutouts so they bike appears to not look like it has an internal battery.
Thanks, thumps up.
So is there a way to reset the bms, its becuase that there has been a lot of problems with the powertube battery, so if you do not update the battery before first charge it will shot completly down and you will get a new one from bosch. Anyone know how to make the battery back to life again.
Yes,seriously.
👍
Congratulations for the video, very instructive and it has helped me, I have a query: to connect with the Bosh connector of 3-wire battery (positive, negative, the other) as it would connect to a non-bosch ebike motor that only has 2 wires current (positive and negative). I don't have much knowledge of electronics.
Did you end-up finding the answer to this question?
You will need positive and negative wires of 42v charger and the third wire need to be positive 5v source and negative together.
The 5v supply will enable the charger to work and it acts like a key. 👍
@Fayez Mohammad wrong they don't have 5v thev3rd wire is another ground wire for charger input to the bms
@@davebrown2527 you wrong. From charger to batt its 5v or the battery dont charge. Eazy fix whit a phone charher
Che modifica bisogna fare alla batteria per montare un extender battery??
Dipende dalla batteria che stai utilizzando. Nella maggior parte dei casi basta una scheda che gestisca entrambe le batterie. Se sei interessato noi in azienda eseguiamo questo tipo di lavoro. Inoltre costruiamo i nostri range extender!
how great and easy it would be if they are made consumer friendly, just screw the bottom off, and the cells slide out, and you can insert new ones, and done.. Just like AA batteries. Much less e-waste and easy repairs this way. It's a nasty thing they are doing with e-bike batteries. They really want to sell you a new battery every 2 years. They could make a 10 year lasting e-bike battery easily using LiFePo4 cells and decent battery management. Also, let the user choose to charge to a custom level like 70 or 80%, make your battery last alot longer, but thats not what they are interested in of course.
Proof...?
1) batteries are way overpriced
2) no user defined charge level
3) no internal reserve capacity margin implemented
4) no slower charge speed settings
5) prevents third party batteries
6) prevents the use of smart third party chargers that can extend your battery life
7) no use of long life cells like the proven LiFePo4 cells
8) no active cell balancing promotes charging to 100%
9) range extenders are not used or charged in paralel and requires to charge to 100%
And this is prety much the formula that all ebike builders follow.
The only alternative is building your own ebike.
There is just no incentive for them to do it in any other way, the amount of profit on batteries over de lifetime of the ebike are huge.
I had a DIY ebike with a LiFePo4 battery that lasted for almost 10 years , always fast charged to 100%.
With slower charging and limit to 80%, it would last at least 20 years for sure. And costs half that of what Bosch charges for the same capacity.
The same is going on with Mobile phones BTW. They don't give you the option to charge slower or below 100%. Even apps are prevented from doing this.. Only way is to use an app to let you know you need to pull the plug at a set percentage. Making batteries also hard to replace, making sure people keep buying new smart phones, even if it's just because of a degraded battery.
Thank you for informative and educational comment, would be mega cool to have all these options...
My huawei phone let's me limit the maximum charge to extend battery life.
Really is a sign of the times that you have to go to China to get products you can fix and repair and aren't totally disposable ripoff.
They definitely should be make these more service friendly for professionals, but Lithium batteries are easily nudged into thermal runaway if mishandled, so I guess these system have to keep consumers from attempting DIY repairs. I worked out how long my battery charger took to take my battery from 20% to 80% and added a smart plug to switch it off... when I cared to. These days, I don't baby the battery, it's 5 year old and still going strong.
I very compact 💪
How many more cells does the 625 model battery have?
I except the 625 model to just have bigger cells instead of more of them
@@Gungarr I doubt it. They use standard 18650 cells (fixed size).
One extra row of cells.
bike spokes :-D cool *lol*
Soo...... Dit you repaired it? Can u tell us what was the problem?
No, I believe he just disassebled it. Usually the newer batteries kill themshelves when the power cuts off.
bbrain yes you are right. The bms of the bosch powertubes goes into a locked state when it senses a cell being disconnected or even below a voltage threshold. I would really like to know if someone managed to reset/unlock the bms or that bosch made this impossible.
@@BaukeP in theory if you could fit a BMS in there and remove the Bosch system you might get it to work? I cant Imagine that the system sends anything more then "power and voltage state" the BMS should control the rest without input from the bike. The Bike is really just looking for Power from the pack.
@@Xyphren I would really like to hear someone who has tried this. The Bosch bms does also balance the cells inside the pack. Maybe it's possible, but the availible space inside the pack is very limited.
In the bosh powerpack ( older) i removed the factory bms and used a geveric One. However the powerpack returned to work as a "generic" battery very good but didnt work anymore with the bosh motor.
Interesting. Looks like 18650 cells.
Yes, almost no one is using 21700 cells i ebike batteries yes, not even bosch.
@@Batteridoktorn A lot of manufacturers for Brose Ebikes use 21700 cells.
This design is great to remove all bosch electronics and add a generic BMS with Bluetooth
Damn, i just built a 48v 13s5p battery with a chinese hailong case and a chinese 30a bms, compared to my diy battery this bosch seems made by Nasa lol XD
That's what you call engineering overkill...
I doubt they even repair these when they get broken while in warranty. Probably just replace it with a new unit and therefor not requiring battery repair centers. At the same time making it impossible for the user to repair it via 3rd party out of warranty and thus making him buy new overpriced over engineered pack.