[Mr Roboto]

My Leaf 30 is 4yrs and 4 months old and has done 31k miles. It has all the battery bars intact but a few days ago I did a round trip of 78 miles on the motorway at 60mph In perfect weather and limped back home with 12% charge! The car‘s been serviced as per the schedule and I can’t understand why this is happening. Even when fully charged, my car says the range is 99 miles. It used to say 120. I’m not sure what to do as I’m now getting nervous about trips that have been easy to do previously! I was told at the last service that the battery was in perfect condition, whatever that means.

Has anyone any experience of this?

 

[Hermit Dave]

My Leaf 30 is 4yrs and 4 months old and has done 31k miles. It has all the battery bars intact but a few days ago I did a round trip of 78 miles on the motorway at 60mph In perfect weather and limped back home with 12% charge! The car‘s been serviced as per the schedule and I can’t understand why this is happening. Even when fully charged, my car says the range is 99 miles. It used to say 120. I’m not sure what to do as I’m now getting nervous about trips that have been easy to do previously! I was told at the last service that the battery was in perfect condition, whatever that means.

Has anyone any experience of this?

Have had a look using LeafSpy app and OBD2 adapter?

You can pick an adapter for under 20 on Amazon

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[Hermit Dave]

You could also ask in anyone living nearby who could help you with this.

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[Mr Roboto]

What is that likely to tell me?

 

[80698]

What is that likely to tell me?

It will tell you if you have any weak cells. That's the first thing to check for when the range starts to drop like that despite the battery appearing otherwise healthy.

Do you notice the remaining charge starting to drop faster and faster as your battery charge gets lower? This is also a fairly common giveaway.

 

[Mr Roboto]

YES! This is exactly what happens! At one point we had a 25 mile overhead, or we should be back home with 25 miles to spare but suddenly that started dropping alarmingly with no explanation.
what can be done about this - the car is now well out of warranty!

 

[Hermit Dave]

What is that likely to tell me?

Have a look at this thread.

I know it's long and I've posted took many times there

Using LeafSpy table screenshot at various levels of charge - fully charged, half way, and nearly depleted (without sitting too long)

The battery health thread!

*** Xaccers links to Google sheets for data entry and up to date graphs below. This supersedes the original graphs I was maintaining. Cheers Xaccers!*** Xaccers wrote: "In response to the chart showing faster degradation for 30kWh batteries, I've created the following if people with LeafSpy in...

www.speakev.com

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[80698]

If you have a 30kWh model you should have battery warranty still, even though the car may have expired warranty. Get in touch with a dealer to let them know about this and they should be able to send it off to get the battery refurbished by replacing the weak cells.

If you have leafspy data it will probably be easier to get them to sort it out as you can immediately confirm for them what the problem is, but otherwise just explain that your range is poor and falls alarmingly fast as the SOC drops down.

 

[Hermit Dave]

YES! This is exactly what happens! At one point we had a 25 mile overhead, or we should be back home with 25 miles to spare but suddenly that started dropping alarmingly with no explanation.
what can be done about this - the car is now well out of warranty!

Is this a Leaf 24kWh?

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[Mr Roboto]

No, it’s the 30kWh

 

[Hermit Dave]

No, it’s the 30kWh

Leaf30 has 8 year / 100k miles warranty??

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[Mr Roboto]

Which is a good ODB2 adapter to get from Amazon?

 

[Mr Roboto]

8 years! Wow, never knew that!

 

[80698]

Which is a good ODB2 adapter to get from Amazon?

Do you have an Android, or an Apple smartphone? The recommendations vary depending on your device.

 

[Mr Roboto]

I just bought a cheap Android phone as a backup devic but I also have an iphone

 

[80698]

Use Android if possible. The Bluetooth connection they use tends to be more reliable than the WiFi that the iPhone uses for connectivity.

The Konnwei KW902 is one of the most commonly recommended Bluetooth based dongles on here.

Someone else will likely post here soon with a direct link to one they have purchased recently and has confirmed it works well. That will hopefully save you from the risk of getting a fake.

 

[JohnMars]

Also do t use the GOM as the indicator of range / miles.

Turn on the battery percent display and use that, mine used to plummet.

 

[Mr Roboto]

Ok, can anyone suggest a ODB2 adapter that will work well with leaf spy please. I’ve looked at the Konnwei and looks fine but I’d be happy to look at other that members may suggest!

My local dealer is a complete plonker so unless I have data to back up the battery problem, they will almost certainly try to claim that it’s perfectly normal for a 4 year old car and perhaps I should be looking at one of their shiny new Leaf models..

 

[Hermit Dave]

Ok, can anyone suggest a ODB2 adapter that will work well with leaf spy please. I’ve looked at the Konnwei and looks fine but I’d be happy to look at other that members may suggest!

My local dealer is a complete plonker so unless I have data to back up the battery problem, they will almost certainly try to claim that it’s perfectly normal for a 4 year old car and perhaps I should be looking at one of their shiny new Leaf models..

I use this

Vgate iCar 2 WiFi OBD2 Scanner Scan Tools Check Engine Light Can support 12V (2003-) Diesel Car Diagnostics Tool for iOS iPhone iPad, Android Auto Sleep UK Deliver from UK Warehouse: Amazon.co.uk: Car & Motorbike

Buy Vgate iCar 2 WiFi OBD2 Scanner Scan Tools Check Engine Light Can support 12V (2003-) Diesel Car Diagnostics Tool for iOS iPhone iPad, Android Auto Sleep UK Deliver from UK Warehouse at Amazon UK. Free delivery on eligible orders.

www.amazon.co.uk

The orange variant is 14.99

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[Mr Roboto]

Now ordered!