New to E-bike

[Tombike]

Greetings all!

I'm new to the e-bike world, but I recently came into possession of a hand-me-down Stromer ST1. The bike is in good shape, but not functional as an e-bike; electronics are not functional, battery seems to be dead, not sure if the charger works, etc.

I'm hoping to get some expert advice on how to get this bike functional with limited investment. If you think you can help, look for details posted in the Stromer forum.

Cheers,
Tom

 

[Ebikefevercure]

Try to charge the battery and then test the battery voltage with a multi-meter... Battery dead? Maybe a bike shop has a Good battery you can attach and check systems that way. Once you have power you can test components through the positive+ and negative- wires to each piece. If you have continuity at the wires with all power On but, not through the component while connected, then that component is shot. I would check Battery then Controller.... I don't have a ST1 but, I repair electronic devices for massive skyscraper building HVAC components. Same electro-laws apply, and Ebikes are far less sophisticated. I apologize if this doesn't help...

 

[rich c]

How strong are your electrical troubleshooting skills? It's going to be expensive if you can't narrow down trouble and just start buying components. The battery pack is probably close to $1,000.

 

[Ebikefevercure]

If you know someone who could provide a variable power supplier, you could simulate a battery to test components too. Set the Amps and Volts like the battery would provide, turn everything On, and with a multi-meter start touching + and - in the ends of each wire to each piece. Inspect the wires as well. I can't tell you how many times I've fixed something major by finding a smashed or burnt wire that engaged other safety measures and shut down big operations, lol... Start simple like power source and follow the wires to see how far the current goes before stopping. Where it stops, is where the problem lies... Making sense? Electricity is a river, starting at the battery+, find the dam (short or disconnect) that stops it from flowing through every component, and back to the negative- wire at the battery.

 

[AlanDB]

If I were you, I would go to the Stromer website and use the "Store Locator" to see if there is a dealer near you. If there is, call them and ask how much it would cost to have them professionally diagnose the bike, battery and charger.

 

[Tombike]

Thanks for all the good suggestions. I think I am going to be doing a little bit of all of these. It is definitely the high price of the barttery that is pushing me to be a little bit cautious.

 

[Ebikefevercure]

If I were you, I would go to the Stromer website and use the "Store Locator" to see if there is a dealer near you. If there is, call them and ask how much it would cost to have them professionally diagnose the bike, battery and charger.

My description above IS a Professional diagnosis, fyi. That is exactly what Stromer engineers will do if you send it to them.. Depends who you trust and what they may want to sell you instead if diagnosing the issue.

 

[Gator]

Welcome
Lots of good information here. I am pretty new here also. I have learned a lot from this forum. There is a section of this forum devoted to particular brands. Head over to that part of the forum and find the Stromer section. I bet there would be a lot of folks willing to help. Especially since you are trying to get one back on the road.

Here is the Stromer section:
https://electricbikereview.com/forums/forum/stromer/