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Dala's Leaf buildthread (2015 Nissan Leaf)
#31
Kewls, it has OpenEnergyMonitor project with it. Nice.


In the last pic, I see you have your furnace stacked up. That smoke stack will produce LOTS of heat in the garage Tongue
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#32
(01-11-2019, 12:47 PM)Dala Wrote: This showed up in the mail.



Now I can start capacity testing the big Leaf cells! I settled on the reasonably priced Antimatter charger/discharger. It can do 10A charge and 7A discharge. I started it a bit more gently, and the test is going to take some time. I set the upper voltage to 4.1V, and discharge down to 3.0V. If I had set the upper voltage to 4.2, it would ofcourse net more capacity, but as long as I do the same for each cell I test, I will come to a conclusion what cell would be best to use in the car.

My reasoning for 4.1v instead of 4.2v, it's just what the Leaf BMS targets for optimal cell lifetime.

Interesting thread for me, keep up the good work & investigation.
Just a thought from me .... Would you not be best to put the max load on cells you can when testing capacity? ....
As surely this is more representative of its working environment.
Will likely show a weak cell easier?
Saves time too ? ☺
(4.1v max makes sense tho)

Thoughts from others?
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#33
(02-18-2019, 10:20 PM)obd.tech Wrote: Just a thought from me .... Would you not be best to put the max load on cells you can when testing capacity? ....
As surely this is more representative of its working environment.
Will likely show a weak cell easier?
Saves time too ? ☺
(4.1v max makes sense tho)

Thoughts from others?

Yes, higher load would be better and save time. The chinese lithium tester, I'm not so sure I even want to push it hard. If I had invested in better testing equipment, for sure, testing with higher load is beneficial.

In other news, I'm in the local paper!

[Image: 01yFSf4.png]

I'm currently in the process of starting up my own company, aiming to be the first in Finland to offer 3rd party EV battery service/swap/upgrades. It's gonna be a wild ride!
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#34
do you have a link to an online version of that article?

I found it https://www.osterbottenstidning.fi/Artikel/Visa/276688

Damn Paywall.
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#35
(03-27-2019, 02:29 PM)jdeadman Wrote: do you have a link to an online version of that article?

I found it   https://www.osterbottenstidning.fi/Artikel/Visa/276688

Damn Paywall.
https://www.vasabladet.fi/Artikel/Visa/2...BNUPUw7rFA
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#36
I went and added the garage to the Plugshare map, in-case someone is close to getting stranded in the middle of the Kvarken world-heritage archipelago Big Grin

[Image: BJkqAZr.jpg]

[Image: G8Enguj.png]

It sure is an EV dead-zone out here Big Grin
Menno likes this post
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#37
Very Nice
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