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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Mon May 07, 2018 6:28 am 
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Joined: Mon Sep 26, 2016 11:18 pm
Posts: 896
Location: Poland
Steeeeve wrote:
I'll have to keep an eye out on cell voltage, 3.416 was the average when it was down at 0.3% reported by watchdog. I've not had a battery health card on the lower reading since. I got a state of charge card for 97% the day after which showed a higher average cell voltage compared to before the smoothing.. 4.043 v at 103% charge vs 4.09v at. 97% charge post smoothing.

Let's see what happens!
Steve


4.043v at 103% :shock: :shock:

This is looking very wrong ..

Now 4.09 at 97% is about correct .. actually on mine 4.09 is about 100%

If before your battery could only charge up to 4.04v .. this alone explain the low SOH, or the gain you got now in range/SOH

Still a mystery for me how your smoothing could have impacted the max charging voltage


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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Mon May 07, 2018 7:43 am 
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Joined: Sun Feb 11, 2018 11:57 am
Posts: 42
I guess let's see how things pan out. Until I get a new card I can only assume things are slightly better than they were. I suppose the inherent risk in doing what I did would probably make it right for me to say... Don't try this at home lol

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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Wed May 16, 2018 12:08 am 
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Joined: Fri Feb 10, 2017 2:22 am
Posts: 73
Location: Lisbon, Portugal
Lots of good stuff here.

And happy to see the Dog is helping there :D

Will follow this post carefully!


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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Fri May 18, 2018 2:20 pm 
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Joined: Sun Feb 11, 2018 11:57 am
Posts: 42
My Car registered a drop in battery health to 90.3% last night. This is after the car sitting in an airport car park for a week with a depleted (30%) battery. I don't know if that is a direct correlation to what has caused the drop. This means a 1% drop since owning the car equivelant to 0.25% per month. I think its fair to assume this is a failed experiment, well it made no difference lol.

It's great that we have the tools to measure this though :D

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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Sat May 19, 2018 5:46 am 
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Joined: Thu Nov 10, 2016 8:11 am
Posts: 8
Location: Sherfield-on-Loddon, UK
Steeeeve wrote:
I think its fair to assume this is a failed experiment, well it made no difference
...or that your BMU already had accurate data about your traction battery? ;)


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 Post subject: Re: Cell smoothing attempt from home
PostPosted: Sat May 19, 2018 1:11 pm 
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Joined: Sun Feb 11, 2018 11:57 am
Posts: 42
richi wrote:
Steeeeve wrote:
or that your BMU already had accurate data about your traction battery? ;)

That's even more depressing :lol:

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