Battery degradation - Are you seeing it?

[Greg_D]

My i3 would always show 85-88 miles charge when full when i got it april last year. Same car, same weather, same charger is now never getting above 65 miles when full.

Is this a similar story with others, has the battery really lost 23% capacity in a year?

if so, and if it continues to drop, i'm glad i had it on a lease, i'd hate to see the residuals if you are only getting 40 odd miles to a charge after 3 years. it'll be a bloodbath

[LordFlathead]

I believe you can reset or recalibrate the Leaf battery measurement system so I would think it is possible to do the same on your i3.

20% degradation is not viable in one year; I would suspect you either have a calibration issue or a faulty battery pack. I would call your dealer and ask the question there. It might just need plugging into the computer for a reset.

[Greg_D]

If only it were that easy...

the problem is that it only equates to 65 miles on the road as well as on the display

[budfox]

8k on our Leaf, not the slightest hint of a drop in battery capacity.

[pboyall]

That sounds way way too high. It's quite possible that a cell has failed and taken out an entire module. What does your dealer say?

[c2mike]

You will see some degradation over time (tens of thousands of miles), but nothing like what you are reporting. You either have a battery fault or a calibration issue. Try driving until it reads nearly zero remaining and measure the miles travelled and compare that to the actual range when the car was new.

[c2mike]

Greg_D said:

If only it were that easy...

the problem is that it only equates to 65 miles on the road as well as on the display

Did it ever do 85 miles?

[mids]

Can't say I've noticed degradation with mine although I'm sure there must be some. The Active E test project reported just under 3% drop in range per year (think there's an article about it on Tom M's blog if you want to read more) so 23% is obviously nothing like normal. Bit surprised you'd even ask if it was.