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Update on the bike. The battery box is almost finished. A little disappointed how ugly my welds look. Started working on the mounting point for the battery. Also 3D printed the cover for the chaincase. I’m currently looking for a thermally conducutive pad or foam so I can connect the cell to...

Yes I ordered them from WELLGO. They answered every question I had so I would recommend!

That was one of the reason I wanted to use immersion cooling. I saw somewhere that if a thermal runaway was to happen it would stop to the single cell because the coolant would extinguish it. Actually I would like if tou would tell me about that stuff.

The reason of this fire was that I was using Chinese bms with bypassed discharge. Basically no protection to the cells if the voltage get too low on one cell group. This time I am using the ennoid bms in charge and discharge.

Hey mark may I ask you what type of thermal interface you used to connect the cells to the cold plate? Or at least what the original alta pack used?

I can always change to a silent chain when I’m satisfied with the gearing and the bike performanc.

This was the easiest and cheapest way to make the reduction. Also this way I can easily change the gearing ratio. Snowmobile all use this type of tensioner with absolutely no problems. Also this will be in an oil bath

Well thanks for all this information! It is the first time I see someone with real life experience with immersion cooling. That kind of make me think I do not want to use this then. But then I still need to design a new type of active cooling for my pack.

26s 14p molicel p42a pack. I designed all my bussbar and got them made from a manufacturer found on alibaba.

For the suspension I initially bought the fork for my ktm and I liked them. I kept them when I sold the bike. Since the fork was wp I wanted the rear to be also. As a rider I am picky with my forks. The rear shock I almost never turn a clicker. And the aer48 is the best air fork out there.

Hi, wanted to show the bike I am currently working on. The goal is to be competitiv against 450cc bike in motocross racing. I basicly built a complete brand new bike from part on ebay and marketplace. Everything is brand new. 2018 crf250r frame 2021 crf450r swingarm alta mxr forks and shock...

Looks very nice!

You can monitor the voltage with the app on the phone.

This is how my bms was wired too. But the problem is if one p-group get out of balance the bms will not disconnect the battery. This is what happened to my battery.

The problem with the ant bms is that even the 400 amp one is not enought. On the rmz I was draining 450 amp from the battery and on the next one I plan on draining around 600 to 700 amp. And I already have the fardriver controller I am waiting on tool to get this project going.

Well the insurance company was a pain in the ass to deal with and not because it was a battery fire( The did not care). We were finaly able to money from them 3 weeks ago. The battery went into thermal runaway because I had bypassed the bms in discharge thinking that the low voltage cut-off from...

This is my bike. I rode the bike for 15km (1h30) during the day and I stopped many time to monitor everything. The highest temp I saw for the battery was 37 degree Celsius and looking at the spec from the cells the can go up to 60 degree. Physically the battery was rubber mounted so less...

Today I went for a trail ride with the bike to if everything is go to go for track day tomorow. So the range of the bike is 35km (1h30) with a full charge. Tomorow im going to a deep sand track and will be filming with my gopro.

is the bike at full power in the video? It looks slow

I havent rode the bike enought to really know the range yet. Are you using the 2 packs together or separately? I think you will be good for an hour.