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04-19-2019, 09:25 AM | #1 |
Not Yet Wild
Join Date: Jul 2018
Posts: 7
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Smart BMS Questions
I converted my pack to lithium - 7 Nissan Leaf Gen 2 cells (48v cart).
Like others, I'm wanting to upgrade my BMS from the basic 14s model Bob included in his original build, so I am looking at 14s models with bluetooth functionality. In looking at Aliexpress, it looks like there are newer models are configurable for different cell counts, and which have a much higher amperage rating (up to 400a). Newer configurable BMS model 1. What's the lowest amp rating that a basic 14s BMS should be for a 48v cart? 2. Does it matter to buy a newer BMS with a higher amp rating (up to 400a) if I might add an additional 7 Leaf cells in the future for additional range? 3. Anyone used one of these newer ones yet and can comment? I've heard positive reviews but figured I'd ask on here as well. |
04-22-2019, 04:13 PM | #2 | |
Gone Wild
Join Date: Nov 2012
Posts: 379
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Re: Smart BMS Questions
Quote:
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04-25-2019, 10:34 PM | #3 |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Smart BMS Questions
I chose what I used because I wanted a minimalistic solution. Power output to the controller is not required to flow through the BMS board in order for a lithium pack to operate. It's all about how much feedback do you want to see, and how much power do you want wasted by the BMS and related systems when your cart is operating or sitting idle. No matter the source of discharge, adding power waste adds usage to your lithium pack, which reduces pack lifespan by some degree over time.
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