The only thing worse than Chinese is Zimbabwe. I have used some of the Chinese stuff and it was just a waste of money. It's better to buy something more expensive, but it lasts longer, much longer.Cheap batteries and power supplies from the far east are always a concern so sensible precautions like not leaving things unattended when charging are always wise.
The good news is that is that power supplies made anywhere tend to fail early in life so if its survived a little while then all should be good. The bad news and the cause of a lot of these failures is the charger part in the controller, as those that fail invariably have little or no short circuit or failed cell protection so they just keep trying to charge a battery that would rather you didn't, and once that happens the inevitable result is that you adhere to the first rule of electricity which is everything electric contains smoke and sooner or later it has to come out.
The biggest problem I find with anything made in China is that the price you pay bears absolutely no relation to the quality you receive and that is still true of things that are sold by companies in Europe and the US but still made in China. So as always buyer beware and do your research.
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I did look at them but there were a couple of things I didn't like about the concept with the cost compared to what I bought being the most off putting. My kit cost £391 where to get the equivalent from Swytch would be more than 3 times as much. At their cheapest their kits are still vastly more expensive and I'm not sold on the front motor design or the battery mounted high up on the bars with those kits.I've thought about getting a swytch kit for one of my steel bikes.
Its one from ebay @Peachy!. This one https://www.ebay.co.uk/itm/393238937263Mr @allenh , what kit did you use?
Interesting experience. When I've looked at mid drive kits the prices without batteries were approaching $800 USD while the swytch kit I recall being around $500 USD if you pre-ordered. I also like that the swytch kit is low impact, while a mid drive or rear drive takes a bit more effort. I agree that the front wheel drive isn't ideal - I wouldn't do it on a cargo bike. But definitely like the idea for an old mountain bike or hybrid.I did look at them but there were a couple of things I didn't like about the concept with the cost compared to what I bought being the most off putting. My kit cost £391 where to get the equivalent from Swytch would be more than 3 times as much. At their cheapest their kits are still vastly more expensive and I'm not sold on the front motor design or the battery mounted high up on the bars with those kits.
This was only an experiment for me but I'm so pleased with the result thus far I've since bought a 2nd kit and using a spare ladies frame built another bike for my wife, so including all the new bits I needed to buy to complete this 2nd bike to Mrs H's exacting standards (lots of purple) I'm still nowhere near the cost of one equivalent Swytch kit and have 2 fully functional electric bikes.
So far the only issue I have found with my particular kit is where the bottle cage mounts were too low on my frame I needed to add more mounts. Because I was building from a steel frame base that wasn't particularly difficult using a 7mm drill and a rivnut kit and the frame I used for the wife's frame had no bottle cage mounts at all originally. Time will tell as to whether our initial happiness with our kits is well founded but so far so good.
I'll post some more pictures of both bikes later as were of for a ride along the coast on Sunday to give my wife's retrolectric Falcon a decent run.