garygid
Well-known member
Thus, most LEAFs (with the New-Bar firmware) would need to be discharged to near the bottom of the last visible Bar (near LBW).
A good photo suggests there are 48 modules.DaveinOlyWA said:i would have to guess a detailed report would not measure more than would be replaced so we would be looking at a 24 module measurement and not 96 cell measurement since individual cells would not be replaced.
of all of the ones that went to the Leaf drive event. did anyone bother to count the # of battery modules in the tear down display?
garygid said:There are 48 modules.
Each has two cell-pairs (4 cells), and both cell-pairs must be measured.
Thus, 96 measurements to examine for an under-performing module.
Wouldn't you want at least some kind of a printout that says that you had your annual battery test done, instead of just a verbal thumbs-up? In case you need to have a battery warranty claim in the future and they require you to provide documentation?TLeaf said:Had my annual check-up performed last Friday and didn't even get a "xx out of 12" print-out, just a verbal statement that the battery read-out was fine and that the brakes and tires were looking great.
adric22 said:I took my leaf to my local dealer today to have the battery test performed.. I've had the car nearly a year so I figured it was time. They said they were busy and it would take a while so I got somebody to pick me up and drive me home. Well, about the time I got home, they called from the dealership and said they couldn't do the test. Apparently the battery must be nearly discharged before they can run the test. He said the battery meter shouldn't show more than 2 bars. So I have to go pick it up and bring it back some other day.
Odd huh?
Ray, you are absolutely correct. The Cell Voltage Loss Inspection is only needed when there is a fault in the pack, as reported by a DTC set. This is NOT the same as the EV battery report! I can confirm this with direct personal knowledge.planet4ever said:This has been an illuminating discussion, but I think the obvious conclusion is that the required annual battery report is not the same as the CELL VOLTAGE LOSS INSPECTION. Here is what the Warranty Information booklet says:SanDust said:The OP's dealer probably doesn't understand the procedures. Given a requirement that a customer arrive at the dealer with only two bars of charge is absurdly onerous, it's very hard to believe that Nissan doesn't have a procedure for testing batteries at all SOCs. My guess is we don't hear about this again.
See? They don't even call it an inspection. It sounds to me like it is just a log readout. That could be done at any charge level. Now maybe the OP specifically asked for an inspection or test, or maybe the service department misunderstood the warranty requirement, but the bottom line is that the annual report has no onerous requirement but probably won't tell you much. I expect we will hear about this "2 bar" inspection again, but only in the context of a battery which is acting up.You are required to perform annual EV Battery Usage Report at intervals of 12 months, 24 months, ...
Ray
garygid said:I want the "Cell Voltage Loss Inspection" please.
I want to monitor the health of my Battery Pack.
+1. It will be 5 months before I am ready for my battery test. By then you folks will have identified dealers that are willing to do the full CVLI and give you a printed report. Battery degradation is expected to be nonlinear, accelerating in the out years, so having an annual record will be useful, even if the initial loss is very small.garygid said:I want the "Cell Voltage Loss Inspection" please.
I want to monitor the health of my Battery Pack.
I recall seeing a prototype of this report somewhere, and it displayed zero useful data, just a bunch of "everything is fine" check marks and a repetition of the standard propaganda to not charge to 100% too often, avoid full charge on hot days, etc. The CVLI should have real numbers.Ingineer said:Oh, and the EV battery Report includes a print out function which is intended for the "customer". Please request this print out when you have your report run, as you are entitled to it. It summarizes the information collected with warnings for behavior that could reduce pack life.
-Phil
EVDRIVER said:The annual pack test sounds like a nice way for Nissan to deny claims for capacity loss with finger-pointing data.
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