Airstream65
New member
Hello!
This is from my new to me 2015 SL.
Thanks
This is from my new to me 2015 SL.
Thanks
, which seems to say that only the two very highest-voltage cells shown in the OP's histogram don't have their shunts on; wtf ??? So the rest of the cells will be pulled even farther out of balance?? If someone is able to give it, I would really like to hear an explanation of this counterintuitive coloring of the cell voltage histogram bars.The red bars represent those cell pairs that have the shunt active to bleed off some of the stored energy and balance the battery pack
Airstream65 said:Hello!
This is from my new to me 2015 SL.
Thanks
SageBrush said:Increasingly high chance you have a like new battery
I suggested you take a long drive to correlate actual range to the LeafSpy result.
Airstream65 said:I've been driving the car for almost a month now and I have put about 800 KM (500 miles) on it. since it was new to me, and I just took this screenshot yesterday. Most of my trips have only been down to about 50% battery, not sure if I've been on a really long range drive with it yet, I'll give that a try today and see if anything changes on the LeafSpy screen. I picked up the car used from a Nissan Dealer, but they don't know the history of the car either. So no idea if the battery was replaced at all during its previous life.
It has more Ahr capacity than many a car right off the lot.DaveinOlyWA said:SageBrush said:Increasingly high chance you have a like new battery
I suggested you take a long drive to correlate actual range to the LeafSpy result.
New?? Its 5% degraded. I would be a "bit" upset if anyone passed this off as new.
SageBrush said:It has more Ahr capacity than many a car right off the lot.DaveinOlyWA said:SageBrush said:Increasingly high chance you have a like new battery
I suggested you take a long drive to correlate actual range to the LeafSpy result.
New?? Its 5% degraded. I would be a "bit" upset if anyone passed this off as new.
I also have seen this result: Nobody seems to have an explanation, we are told the 430R resistor in the BMS is the bleed resistor, with 10mA bleed!, but that does not work for me, far too low? And the Leaf does a fantastic job of equallizing the pack. There are also too many passive components around the BMA, and indictors in series with every balance connection, seems to me it could be active balancing, has anyone EVER measured the balance current capability? shunt 1 cell pair with a 10R 5W resistor and measure the current in the balance wire. Also check the voltage on the bottom balance wire with a scope, see if there is an ac component.Airstream65 said:I'm wondering if this isn't a very active forum, or maybe I've posted in the wrong area?
SageBrush said:Indeed.
The Gids value in particular is spectacular.
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