Don't waste money on repairing the Swyrch battery. You can buy just about any 36v battery you want and mount it where you want. It's just two wires that you need to connect to the controller the right way round.
I’ve been pondering this for a while as by brother has a gen 2 Swytch setup and both his battery packs are slowly failing.
If your battery goes, the only thing worth keeping is the motor.
That’s the sad truth. There’s a guy on ebay at the moment advertising gen 2 battery refurbs and upgrades - but the price is wow! You can completely redo the whole bike for the same price.
It makes more sense, to me at least, to keep the Swytch motor wheel, and add a new low cost display and controller, possibly mounted in a small handlebar bag.
A sensible approach. Without generalising too much though, I guess the average Swytch user has gone that way because they don’t want to get into the technical side. They want a quick half hour session in the garage, and away they go. To convert a fsiling Swytch gen 2 setup to something viable is maybe a bridge too far for them.
There is not a lot of space in the bag and increasing the capacity usually implies adding more batteries ................
That's true, but when their battery has expired, they need to start figuring out what connects to what, otherwise they can't fix it. For people that don't know anything, they shouldn't have a problem connecting the two wires of a different battery. We have to explain all options because some people do have DIY skills and nobody ever tells us anything about themselves. Also, they might have an electrical genius living next door.
Not sure yet, I’m looking at alternatives at the moment. It’s a Lishui controller so I’m expecting to find one that’ll do the job. Looking on youtube a few people have mounted their gen 2 packs on the back of the bike, brought the leads forwards, and glued the existing display onto a rear light bracket in order to attach it to the handlebars.
I have DIY and soldering skills, but I've never rebuilt a battery pack, also I think the controller would need to be changed. Also I have a friend who is an electronic genius.
Hi. Search on ebay for”swytch battery upgrade” and he’ll be shown in the result. Don’t know who he is, but he will probably be the way to go if you need to keep your existing setup. As you can tell from the posts, the Swytch gen 2 setup is not easy to update - especially now that it’s obsolete in Swytch’s eyes.
You don't need to rebuild the battery pack. You can buy any 36v battery you want. You just join two wires. You can buy one that fits in the bag or you can buy a downtube battery or one that goes on a rack, or whatever you want. It makes no difference - just wo wires, red and black.
I can only say what I would personally do in your position if the battery pack is failing.
Thanks for the great information, I could probably identify the cables from the swytch controller, would these generic battery packs support the pedal assist sensor, and the accelerator handlebar switch ??, and do they come with the battery management circuit board ??
The battery pack will be self-contained with charger and bms integral to the pack. You only need to take the two wire output and join them to the controller (red and black). The battery pack’s only function is to provide your power. The pedal assist sensor is a three pin plug into the controller, which is 0v and 5v from the controller to the pas, and a signal wire back from the pas into the controller. The pas is just a hall-effect device giving an alternating signal as the magnets pass the sensor. Not sure what you mean by “accelerator handlebar switch”. Do you mean the display, or do you have a throttle of some sort? Either way, they would connect to the controller. I think the controller will have mainly the right connectors, but photograph the connectors when you remove the controller and we should be able to advise more then.
