BT -E8010 POWER CONNECTOR CRACK.

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
I have 2 batts. Haven't used the original in months. Took it out on a moderately gnarly Sedona trail and kept flickering off and also the dreaded W013. examined it to find the negative terminal cracked and one half the copper is gone.
I'm wondering if the ball of aluminum foil is my only option. I'm under the impression that Shimano doesn't really fix things or sell parts to do so. Am I wrong.
16378940464992637166574805743030.jpg
16378941170598370748488783201640.jpg
1637894159268787124134918463414.jpg


One picture ( last I hope ) is what the unbroken battery looks like.
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe
I have 2 batts. Haven't used the original in months. Took it out on a moderately gnarly Sedona trail and kept flickering off and also the dreaded W013. examined it to find the negative terminal cracked and one half the copper is gone.
I'm wondering if the ball of aluminum foil is my only option. I'm under the impression that Shimano doesn't really fix things or sell parts to do so. Am I wrong. View attachment 76760 View attachment 76761 View attachment 76762

One picture ( last I hope ) is what the unbroken battery looks like.

p2.jpg


p1.jpg
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
Wow !! But then it's dedicated to that one batt. I have 2 batts, one without damage one with. But I do see the logic if it is reliable. What exactly is the broken input that I posted. Is it a negative. I tried a multimeter but couldn't get a DC reading. What are the two little center leads vs the two larger leads. Can you explain what each of the four does. The one batt rebuilder in socal says they don't have access to any Shimano parts.
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe
I had many problems with this connector error e010.

In aliexpress buy this connector 0.59£ 15% de DESCUENTO|Conector de alta corriente chapado en oro, adaptador de D SUB de 5 + 2 clavijas, Pin mecanizado, cable de Flash dorado completo, 7W2 30A, 1 ud.|Conectores| - AliExpress

They are really two AW14 large section wires and two thin wires (communication wires).

The plastic battery box and the battery-motor cable must be removed. And then match the 4 wires.

It requires additional work on the docking tray box so that the new connectors can be moved, but after doing this, the dreaded e010 error no longer appeared. It would be necessary to protect the connection in some way so that moisture does not enter the new connection, this can be achieved with a couple of turns of very fine plastic
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
Seeing you have been in there, and that only the large negative port is cracked and missing the copper pickups, would you think it's safe to shove a wad of aluminum foil blindly into only that one pickup to try and obtain connectivity or is there stuff behind that plug that warms one not to create a short circuit in there ?
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe
Placing aluminum foil in these types of connections is useless at all. Aluminum is so soft that it does not hold strongly. The shimano electrical connections have caused me so many problems, as well as the adjustment of the battery, that I finally opted to change the connections of my two batteries. Since then not a single problem. The battery now does not need to be fine tuned.
My solution seems very radical, but it is being effective.
I am lucky to have completely disassembled my bt8010 battery

p3.jpg
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
Now I'm starting to understand your motivations. It's obvious to me that this connector is going to fail. I just ordered a third battery ( $616 yikes) and if I keep this bike , which I love , and which I have yet to see anything significantly superior, I can see evolving into your fix. I would even contemplate doing your solution to all three batteries. Are you done kind of electronics wizard or can any lugnut figure this out ?
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe
Now I'm starting to understand your motivations. It's obvious to me that this connector is going to fail. I just ordered a third battery ( $616 yikes) and if I keep this bike , which I love , and which I have yet to see anything significantly superior, I can see evolving into your fix. I would even contemplate doing your solution to all three batteries. Are you done kind of electronics wizard or can any lugnut figure this out ?
If you have knowledge of soldering with tin you can do it yourself, if you do not have it, it is better to have someone help you than if you know this topic. The connector can be bought in AliExpress for a super cheap price, nothing to do with the replacement that Shimano sells you, as long as it is the connection tray, there is no replacement for the battery connector
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
16383150684558073932273115042732.jpg


So this rediculous squared. This plug could be changed correctly at any iPhone fixit shop or even by me if and only if Shimano bothered to support their stuff. This is a $10 part.
 

fuikatasio

Member
Mar 19, 2020
18
21
Europe
Indeed it is ridiculous, but shimano does not offer you any spare parts. I had it very clear, and more now that I have found this AS150U connector that is better protected from moisture. You can be sure that this new connector will not break again, it is much more robust, and you do not have to adjust the battery precisely.
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
Your solution is radical but reasonable. I sent a repair request to Shimano warrenty and expect it to be turned down.

I'm curious if other brands such as Bosch have these kinds of issues. I was going to stick with shamomif I ever bought a.sexond ebike but now I'm wondering if that's a wise choice.

The third battery is getting prepared for shipping. If I can get another 2-3 years out of my current bike without another expensive purchase I might be able to justify 300/year for battery replacement. I also expect this connector issue to become a.real.shimano headache as in all these batteries fail at the connector so they might have to offer a solution.
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
fyi: as expected shimano blew me off. not willing, caring to, etc,etc to help me out. all i wanted was to purchase the part. why should they give a hoot.
 

ArcticBiker

New Member
Mar 30, 2022
4
0
Above the Arctic circle
I have 2 batts. Haven't used the original in months. Took it out on a moderately gnarly Sedona trail and kept flickering off and also the dreaded W013. examined it to find the negative terminal cracked and one half the copper is gone.
I'm wondering if the ball of aluminum foil is my only option. I'm under the impression that Shimano doesn't really fix things or sell parts to do so. Am I wrong. View attachment 76760 View attachment 76761 View attachment 76762

One picture ( last I hope ) is what the unbroken battery looks like.
I had the same issue.

My solution was to repair the connector.

I milled a hole through the connector with a dremel and inserted a thin brass plate (self made connector plate) and soldered a bridge over to the negative cable connector - then I used some silicone filler to make it somewhat water proof.

Be really careful around the cable connectors, they're really brittle and can snap off really easy.

I don't have any pictures and I really don't want to tear the battery apart again :)

Shimano connector.png
 

Cyclopath1000

Active member
Apr 26, 2019
307
123
Davis Ca
Can you snap a picture of the outside of the connector after your fabrication? What you did is exactly what I was contemplating to do.
 

Spiff

Active member
Feb 27, 2019
410
232
Earth
Yes a picture of the battery connector from outside that shows where you did the milling would help.
 

ArcticBiker

New Member
Mar 30, 2022
4
0
Above the Arctic circle
Can you snap a picture of the outside of the connector after your fabrication? What you did is exactly what I was contemplating to do.

I did the milling from inside out, there's a thin layer of resin on top of the connectorplate which is pretty easy to get through with a dremel and a milling bit. The brass plate is bent double to make a snug fit for the connector.

Connector.png
 

EMTB Forums

Since 2018

The World's largest electric mountain bike community.

514K
Messages
25,172
Members
Join Our Community

Latest articles


Top