upgrade LEAF 2012 battery BMS

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shuma89

Active member
Joined
Nov 15, 2021
Messages
36
i want to change battery on my 5 bar nissan leaf 2012 24kw, with 100AH 3.7v batteryes from china. it will be 100X360=36 kw.
how I can update my bms firmware to read this capasity and have 12 full bars?
 
You mean 24 and 36 kWh?

You're probably going to have additional problems to deal with if the charge and discharge curves are different than the original cells.
 
shuma89 said:
cwerdna said:
You mean 24 and 36 kWh?

yes. 36 kw
Battery capacity is measured in kWh, not kw. They're totally different metrics. We've discussed this many many times here, like at https://mynissanleaf.com/viewtopic.php?p=389321#p389321.

The fact that some of your prior posts also have unit problems like https://mynissanleaf.com/viewtopic.php?p=621947#p621947 and https://mynissanleaf.com/viewtopic.php?p=621990#p621990, suggest you're in over your head.

You have the right configuration as to what the BMS expects?
https://www.mynissanleaf.com/viewtopic.php?t=17470
 
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