Recent content by soyachips

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    Kelly KLS-H variable regen issue

    Thanks for the replies. I’ll just have to keep playing around with the settings to see if I can find the problem. My preference is to use variable regen but it’s just not very strong at the moment. The strange thing is it used to be stronger like when releasing the throttle but I played around...
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    1987 Yamaha FZR250

    OK so the latest drama was both sets of hall sensors had errors so I had to take the motor apart to replace them. It takes quite a lot of force to separate the stator and rotor but this technique worked quite well. The new sensors are Honeywell SS41 bipolar and while the motor was open, also...
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    Kelly KLS-H variable regen issue

    I have a Kelly KLS7250H and when I compare variable regen vs regen when releasing the throttle, the variable regen isn't as strong even though both are set to the same %. Settings for variable regen: RLS_TPS Brk %: 0 BRK_AD Brk %: 50 Brake Type: 1 Brake Dead Low: 15 Brake Dead High: 70 * When I...
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    1987 Yamaha FZR250

    Yes good point, I think the ANL fuses are good up to 80V which was ok before but I'm slowly climbing up in voltage so I will need to upgrade. Will order one now :thumb: I got part way there reading data out of the ANT BMS over Bluetooth and being able to see the correct values for current and...
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    300km/190mi Electric Moped on the Cheap

    Awesome work ... wiring burrito :lol:
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    INDEX, motorcycle and scooter E-Conversions

    viewtopic.php?f=12&t=114863 1987 Yamaha FZR250 2KR Motor: QS 273 6000W V3 hub motor Controller: Kelly KLS7250H Battery: 23s1p 117Ah NMC prismatic cells
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    1987 Yamaha FZR250

    OK so this is a bit embarrassing but also a bit of good news, for a while now I've been trying to work out why my initial acceleration has been underwhelming. I've read people say Kelly controllers aren't so good in this department and despite going through the user manual many many times to see...
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    1987 Yamaha FZR250

    Yes LiFePO4 max is 3.65V. I guess the same cell boxes are used for different chemistries. These are the ones I used which have the following specs: https://www.alibaba.com/product-detail/catl-3-7V-117ah-3-7v50ah_1600259771564.html?spm=a2756.order-detail-ta-ta-b.0.0.52222fc2vPa8E1 Rated...
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    1987 Yamaha FZR250

    Thanks, it's been quite a journey but heaps of fun. I finally feel like the bike is good enough to just ride without worrying about things failing and you're a test pilot! I really hope I didn't just jinx myself :lol:
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    1987 Yamaha FZR250

    So the battery is now 23s mainly because the controller can only handle 90V. At some point I'll upgrade and go to 26s. Max speed is now 110kmh and range is 150-200km (to be verified). Next step is to replace the DC-DC converter as I've now gone up in voltage a bit above what it's rated for and a...
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    1987 Yamaha FZR250

    The battery box was mostly built with rivets and glue but I had help from a friend for the mounting brackets which are welded.
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    1987 Yamaha FZR250

    And then lockdown happened and in one of my "I'm in need of a project" late night impulse purchases, I bought a bunch of 117Ah NMC cells!!!
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    1987 Yamaha FZR250

    I also started playing around with reading the current and battery SoC out of the ANT BMS and using an Arduino to drive the original gauges but unfortunately never got it working properly. I found an eBay seller that can make custom faces with the proper backlighting for a reasonable price too...
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    1987 Yamaha FZR250

    I also discovered the TeslAnything Adapter from EVolution that allows non-Tesla EVs to use their destination chargers and other Type 2 charge points. This paired with a faster charger setup meant I could explore a bit more...
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    1987 Yamaha FZR250

    So everything was going great and my range had increased to 50-70km which was pretty much double what I could do before and meant I could now do a bit more exploring. Here's a couple of nice shots down at La Perouse, Sydney.
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