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Battery range dropped 25% after a year and a half and Honda Canada refused to do anything!! should I sue Honda and take them to court ?? any one with this problem?
 

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Question -has your ICEV (HV) fuel economy also gone into the tank? If so then the problem may not be with the battery but something else such as a stuck brake caliper causing excessive drag.
 

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Question -has your ICEV (HV) fuel economy also gone into the tank? If so then the problem may not be with the battery but something else such as a stuck brake caliper causing excessive drag.
no the fuel has not changed on battery range. after fully charged, it only gives you range of 50 instead of 80. I think the cells are dead for some reason
 

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Battery range dropped 25% after a year and a half and Honda Canada refused to do anything!! should I sue Honda and take them to court ?? any one with this problem?
You can print out the attached page and show this to the dealer and tell them this is what you want checked. As mentioned in a reply to you in another thread the battery is eligible for replacement under warranty only if this value is less than 36.6 Ah. A new battery is 55 Ah, so 36.6 Ah is a 33% reduction in capacity, you may not be at that point. However it would at least quantify whether the loss of EV range that you are experiencing is due to the battery. And then you will also have something to compare to if you have the battery capacity checked again in the future to see if it has further declined or stayed the same.

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no the fuel has not changed on battery range. after fully charged, it only gives you range of 50 instead of 80. I think the cells are dead for some reason
The question by @obermd was if your GASOLINE engine (ICE) range has decreased as well ?

"Question -has your ICEV (HV) fuel economy also gone into the tank? If so then the problem may not be with the battery but something else such as a stuck brake caliper causing excessive drag."
 

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Battery range dropped 25% after a year and a half and Honda Canada refused to do anything!! should I sue Honda and take them to court ?? any one with this problem?
If you're just talking about what the dashboard shows for EV range dropping from 80 to 50, you're probably out of luck. I had similar issue with my 2018 Clarity dropping from mid-50's to mid-30's and fought Honda and dealership for several months. To summarize, the EV Range reading is not a reflection at all of a bad battery, it was more a reflection of my bad driving habits (85+ mph and lots of highway driving). That EV range is at best an estimate of future range based on previous driving. Once they confirmed Battery Pack Capacity was still at 55.0 Ah (telling me the battery was good), they unplugged the battery so the system dropped all the historical data from the equation and then I was immediately back at mid-50's for reported EV Range....which slowly decreased back to upper 30's after a few weeks of more of my bad driving habits. There's a whole thread I started on this out there somewhere detailing what I went through.
 

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If you're just talking about what the dashboard shows for EV range dropping from 80 to 50, you're probably out of luck. I had similar issue with my 2018 Clarity dropping from mid-50's to mid-30's and fought Honda and dealership for several months. To summarize, the EV Range reading is not a reflection at all of a bad battery, it was more a reflection of my bad driving habits (85+ mph and lots of highway driving). That EV range is at best an estimate of future range based on previous driving. Once they confirmed Battery Pack Capacity was still at 55.0 Ah (telling me the battery was good), they unplugged the battery so the system dropped all the historical data from the equation and then I was immediately back at mid-50's for reported EV Range....which slowly decreased back to upper 30's after a few weeks of more of my bad driving habits. There's a whole thread I started on this out there somewhere detailing what I went through.
EV range can only be accurately measured with the odometer. Set trip A or B to automatically reset when you charge. Then anytime you charge to 100% and drive to 0 EV miles without driving in HV, the odometer reading is the actual EV miles. It won't happen on every drive that you can avoid HV, but when it does make a note of the miles driven in EV then you will soon build up some actual EV range data.

Discussing what the dashboard says about EV range in a discussion about battery capacity is like discussing recent weather patterns by talking only about the forecasts. If someone said, "It was so hot last weekend where I live, the forecast for last Saturday was 90, and the forecast for last Sunday was 95", you would likely respond, "What were the actual temperatures?". If the person said "I don't know, I only pay attention to the forecasts" then you would realize that relevant discussion with that person about what the weather is like where they live is not going to be possible.

As you indicated the EV range on the display is only an estimate, although not everyone seems to know that. But even those that do still tend to discuss their EV range in terms of what the guess-o-meter says. I can understand that because let's face it, it's a lot easier to read the number on the display than to have to remember to be watching the odometer reading when EV miles reaches 0. But convenient or not, EV ranges based on the odometer are the only relevant data in a discussion about battery capacity. And that's just the bare minimum, ideally each of these EV range data points would include temperature and driving conditions if we are going to make meaningful comparisons.

That was interesting your experience with the battery reset. Most people experience that after a battery reset their estimated range goes down, then after a few drives it goes higher. In your case it went lower, but I think you are probably right that high speed driving is likely the cause.
 

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I’ve had similar problems with loss of range (noted on a separate thread) but found that higher spring temperatures recovered most of what appeared to be lost. If you are in Canada and still experience the problem in June, then I’d spend the time to have the dealer test the battery.
 

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If you're just talking about what the dashboard shows for EV range dropping from 80 to 50, you're probably out of luck. I had similar issue with my 2018 Clarity dropping from mid-50's to mid-30's and fought Honda and dealership for several months. To summarize, the EV Range reading is not a reflection at all of a bad battery, it was more a reflection of my bad driving habits (85+ mph and lots of highway driving). That EV range is at best an estimate of future range based on previous driving. Once they confirmed Battery Pack Capacity was still at 55.0 Ah (telling me the battery was good), they unplugged the battery so the system dropped all the historical data from the equation and then I was immediately back at mid-50's for reported EV Range....which slowly decreased back to upper 30's after a few weeks of more of my bad driving habits. There's a whole thread I started on this out there somewhere detailing what I went through.
😁
Ah so correct!

My wife drives the Clarity like it's a BMW (we have a BMW also) - very spirited driving in the Clarity and she gets less than 35 miles per charge.
Her jack rabbit starts, 75+ MPH HOV driving, climate control heating & AC all the time, heavy braking, no paddle shifting, always runs EV down to zero, and never switches to HV.
Runs out of EV and switches over to gas and she complains she has to fill up every other week - that's what she gets!

I on the other hand drive the Clarity like an old retired, never in a hurry person so I get the 60+ miles per charge - always slow start, coasting, paddle shifting, never turn on climate controls, and trying to milk out as much miles per charge...
 

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Check your own battery capacity with a compatible OBD II and app, or have the dealer check it. My range list 25% in two days. We had a cold snap and I started using the heater before my 2 mile commute. 😝
 
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