I'm doing a little rework on the Currie.
The ignition switch is a bit problematic. I'm switching a good bit of current and the contacts didn't last very long. I was using this switch..which is rated for 2 amps and I'm definitely pulling a good bit more than that. I need a higher amperage key switch.
https://www.ebay.com/itm/On-Off-Key-Swi ... Sw5cNYSIf7
Since I'm working on the scooter, I though I'd add a 3 speed switch control. I've got the controller wiring done and added the 3 new wires into my terminal block in the battery bay. I've also ordered some new wire so I have more conductors going to the handlebars. This will end up being a fairly large change, but will fix a couple of things I didn't like how I originally implemented them.
1. New connector at the controller that now incorporates speed, enable and throttle, new cable from the controller to the terminal block.
2. New battery bay terminal block since the original one was full.
3. Replace the cables to the handlebars with one that has more conductors.
4. Replace the handlebar terminal block with something weather proof. I have 8, 18 and 24 pin IP68 connectors for this.
5. My handlebars are fairly busy. I really went over the top on the Currie! I've come up with a new switch cluster that combines all my current switches into a single cluster.
6. I'm adding USB charging. My phone gets used a lot on the Currie and on anything future I build as well. I need USB power. Also, my GPS speedo and the TPMS all have micro USB ports for charging. Currently I remove them from the scooter for charging. Why?
I had an issue with my Yimia dumb BMS on the scooter. It let my pack get too low on some cells and badly out of balance without shutting off. One cell was at 2 volts and several more were less than 2.5 volts. The rest were nearly fully charged. As a result the watt meter was showing I had plenty of charge left and the scooter was riding like nothing was wrong. I've replaced the BMS with a smart one that has bluetooth. I'll be able to see pack status on my phone. No more surprises from a malfunctioning BMS!
This is the new BMS. I've been fairly active on this thread. I now have 6 of these things and while inexpensive, they work really well.