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I don't mess with the software end much but I can fix just about anything electrical/electronic related on the Alta.

Agree, somewhere between the cells and the display actual cell voltage is being misinterpreted/and or not displayed properly. I'd try loading another (older) version of the Display, BRDs and BCU firmware first. You can always go back if there's no change.

At 4.1 volts I'd say that pack should be reading more like 90-95%, not 75%. That's strange. The one low P-group looks like a wire bond issue and probably won't balance no matter how long it's on the charger. The worse thing that can happen is that during charging any P group goes above 4.2...

That particular chiller is 110v about 6 amps, but I'm sure you can get them in other formats. I can run both my charger at 220 and chiller on 110 off my B&S generator. This chiller can generate major pressure so I had to bypass a significant amount of flow to keep pack pressure around 2-3 PSI...

You should have one of these CAN adapters between the two cables. If you do and it's still not communicating, your computer isn't recognizing the adapter. Follow #76 advice.

While riding I stopped a few times to check the fan/pump status (on of off). While I'm not sure exactly when the thermostat switched them on, it was for sure in the last 5 minutes (of approx 15). That means for at least the first 10 minutes the radiator wasn't doing a thing. I'll try to...

Progress report. Installed the dry break water fittings and connected the water chiller as shown. This setup is able to reduce the two lower module temps (the only ones with a cold plate for testing) from around 97F (a hot day) to under 68F in about 45 minutes. That's about 3.3F every 5 mins...

Without the CAN adapter (dongle) it can't communicate with the bike.

Don't believe it until it's official. I'm not saying it's impossible, just that 80% of any savings will be those things that can be done to any bike to lose weight at the expense of performance, durability, and cost. Lightweight tires/tubes/spokes, air forks, Ti bolts/nuts, flimsy plastics...

Hours after seeing a picture of Ake's Macio with moved up shocks in cycle news I was in the garage cutting up my Honda CR125, bending tubes and welding angle iron to the swingarm. I raced it that weekend (district 36) and smoked everyone in the 125 novice class. I wish I had pictures of all...

Worked for Ake Jonsson, Willie Bauer, Adolf Wheel, and Garrett Wolsink!

Very clean conversion. The Sevcon has tables for setting motor temperature cutbacks, but make sure you calibrate whatever sensors you have. There's also a setting to disable the motor temp sensor and the controller will use it's internal algorithm to predict/calculate motor temps based on load.

Side plates would be super easy to splash a mold and make out of fiberglass or carbon fiber. Haven't had the need yet, but if I do I'll surely do just that.

If you have the proper access from ASI you can use the mobile BACDOOR app. The App is initially setup for general use and has lots of crap you never use or stuff that not applicable. Luckily, its customizable. You can add/remove individual parameters under the given tabs or add your own...

Setup a data log on battery volts, battery amps, motor amps, controller temp and all your cutbacks then run it until it slows, etc. Should be able to see what's going on. I assume you have an ASI controller.

Still will have the same thermal issues with the pack unless it’s actively cooled somehow (assumes the inverter and motor are already liquid cooled). That rear geometry requires valving like the KTM PDS shocks. Much more position sensitive. It’s also VERY heavy damping and spring rates. Can...

The motor runs much hotter than the batt pack. It would actually heat up the pack if I used the same water. Plus, the heat dissipation of the stock system wouldn't support another load. A split system is required.

There's not a hell of alot of difference in the HV harness current carrying wise between models. The MXR does use module interconnect conductor pins (what I call them) that have a bit higher contact surface area and the top cover bus bars the same. Probably to reduce V drop more than anything...

That much HP would require over 45kw, or (with losses) about 180 amps of battery power at 300v compared to the 100-125 amps stock. At 6P you would need to push 30 amps per cell. Even the VTC6 would have a hard time doing that without excess voltage sag (regardless of temperature). I'm not...

Well, much more than a small heat sink. The housing is heavy modified internally and every cell is thermally connected to circulating water. This naturally resulted in a change in pack height to accommodate the required cold plate cross section. However, all the tolerance was applied to the...