Shimano EP8 system not powering on – no voltage from battery mount?

[Convaruuq]

Hi everyone,

I’m currently rebuilding a cargo bike with a Shimano STEPS system and I’m having trouble getting any power from it.

The setup is a Shimano EP8 cargo motor, Shimano BT-E8010 504Wh battery, Shimano SC-E5000 display, EW-SS301 speed sensor, and an SD300 cable between the display and motor. The battery mount is the Shimano external type with a separate upper locking piece and lower contact cradle. The issue is that the system shows no signs of life at all, the display does not turn on and there is no response from the motor. The battery appears to be working normally, as the LEDs show full charge and the charger behaves as expected. All E-Tube connections have been properly seated using the correct tool, and the speed sensor and display are connected. I measured the voltage at the two-pin power connector going into the motor and got 0V. The upper part of the battery mount was previously drilled to remove a stuck battery, but the lower part with the electrical contacts appears untouched. I’m trying to determine whether the battery should be outputting voltage continuously through the mount or if it requires a wake-up signal from the system, and whether a failure in the mount could cause this even if it looks fine externally. I’m also wondering if there are known cases where the battery shows full charge and accepts charging but does not deliver power to the system. What would be the best way to isolate whether the issue is with the battery, the mount, or the wiring to the motor before I start replacing parts?

 

[tony hansmeyer]

i have a bt-e6010 battery shimano thinking about buying another battery to replace it being i cant find a new battery to replace it and the battery i have will not charger i see there are 4 wires 2 battery + and - does anyone know what the other 2 wire are for


did you ever figure out how your bike works

 

[tony hansmeyer]

Hi everyone,

I’m currently rebuilding a cargo bike with a Shimano STEPS system and I’m having trouble getting any power from it.

The setup is a Shimano EP8 cargo motor, Shimano BT-E8010 504Wh battery, Shimano SC-E5000 display, EW-SS301 speed sensor, and an SD300 cable between the display and motor. The battery mount is the Shimano external type with a separate upper locking piece and lower contact cradle. The issue is that the system shows no signs of life at all, the display does not turn on and there is no response from the motor. The battery appears to be working normally, as the LEDs show full charge and the charger behaves as expected. All E-Tube connections have been properly seated using the correct tool, and the speed sensor and display are connected. I measured the voltage at the two-pin power connector going into the motor and got 0V. The upper part of the battery mount was previously drilled to remove a stuck battery, but the lower part with the electrical contacts appears untouched. I’m trying to determine whether the battery should be outputting voltage continuously through the mount or if it requires a wake-up signal from the system, and whether a failure in the mount could cause this even if it looks fine externally. I’m also wondering if there are known cases where the battery shows full charge and accepts charging but does not deliver power to the system. What would be the best way to isolate whether the issue is with the battery, the mount, or the wiring to the motor before I start replacing parts?

did you ever figure out what is wrong with your bike i have the other problem because my battery does not charge so i dont know if the motor works on the bike

i would be interested to buy you battery and mount depending on what battery you have i guess shimano sells a newer battery but the are expensive

 

[miked1234]

Hi everyone,

I’m currently rebuilding a cargo bike with a Shimano STEPS system and I’m having trouble getting any power from it.

The setup is a Shimano EP8 cargo motor, Shimano BT-E8010 504Wh battery, Shimano SC-E5000 display, EW-SS301 speed sensor, and an SD300 cable between the display and motor. The battery mount is the Shimano external type with a separate upper locking piece and lower contact cradle. The issue is that the system shows no signs of life at all, the display does not turn on and there is no response from the motor. The battery appears to be working normally, as the LEDs show full charge and the charger behaves as expected. All E-Tube connections have been properly seated using the correct tool, and the speed sensor and display are connected. I measured the voltage at the two-pin power connector going into the motor and got 0V. The upper part of the battery mount was previously drilled to remove a stuck battery, but the lower part with the electrical contacts appears untouched. I’m trying to determine whether the battery should be outputting voltage continuously through the mount or if it requires a wake-up signal from the system, and whether a failure in the mount could cause this even if it looks fine externally. I’m also wondering if there are known cases where the battery shows full charge and accepts charging but does not deliver power to the system. What would be the best way to isolate whether the issue is with the battery, the mount, or the wiring to the motor before I start replacing parts?

Hi, I'm curious if you resolved this issue? I have the same issue with my EP6 and a BT-EN805 battery. Bike died mid ride with no signs of life. I'm trying to narrow down what the issue might be. Thanks,