Recent content by jai134

That's something I have to try! Thank you

Thank you so much! Your solution is really good but I think the problem with it, as you say, is space for the insulation. I moved everything from my motorbike (except the throttle) to my garden tractor (I need something to plow snow with) and I filled the space where the engine was quite...

I have a batterypack with 9 gen1 Nissan Leaf modules. It's winter now and temperature lays around -10⁰C. After what I have read it's not adviseable to charge the battery when it is so cold so I wonder if you know of something that is keeping the battery warm, or over 0⁰C, when charging? I want...

It seems to be a great product but I dont think I can get it here in Sweden. I think I found a grease that works, it can be used in boats. "Terminal grease"

Thank You!

I used a Dremel to remove old copper and zincstrips from cells I'm going to use in a new pack and I've read that it could lead to corrosion. I wonder if there is a way to prevent corrosion but still be able to spot weld them?

I ordered a charger from China. I neither can afford two high quality PSU's nor a high quality charger at the moment but I have battery cells for a bigger pack, infact two bigger packs so this will do for now. My dream is two MeanWell in series mounted onboard my bike but that'll have to wait...

That was a lot of useful information. Thank You! I charge my bike at home in the barn. I don't have the space for an onboard charger so I have a portable one. It works great but it is for my 48V pack.

Ok! A high quality PSU is better than a good charger but a good charger isn't a bad choice, then?

I wonder if there is any benefits from using a PSU, a MeanWell or similar compared to an "ordinary" charger like this one: 20S - 72V (84V) 12amp Lithium Battery Charger ? Two MeanWell, I'm building a 20S li-ion pack, costs about 400$ together, the one I linked to costs 150£. According to this...

I had a Daly BMS last months because of the registration. Now, when my motorcycle is street legal I returned to my JBD BMS. It balances the cells which the Daly doesn't do. If you say that the difference isn't alarming I let it be like this for some time. Could a balancing card be a good idea...

Here is when it was assembled in januari this year.

I have one P group that is between 0.130 and 0.2V lower than the other groups and I wonder if it could be a bad cell or is it just unbalanced? I also wonder how I can find one bad cell in a pack built with copper/nickel sandwich method? I know which group it is

Today I used my "new" pc and did some changes to the controller settings. The PC software works as before when I had Windows on my old laptop. It needs two or three restarts

There is a choise at app startup to choose either bluetooth or serial connection but I think it is only bt that really works. The pc program isn't that stable either. Perhaps it will work better with this 50$ machine I bought today than the one I had before. I will report