Reduced battery capacity to 64kWh

[Abu Dhabi Dude]

I would try running it low (10% or less) and then charge it up (maybe even at a reduced charge rate or with a granny charger if you can find a long period when you don’t need the car). Charge it right up to full and leave it plugged in until the car completes balancing the cells. Maybe even do that 2 or 3 times if you can. You may find that recovers some kWh for you. Made a big difference with mine.

[Jaganon]

I had a similar energy reading when my car had a module replaced. Following similar to ADD’s method, a couple more kWh was showing on the estimated energy. Enjoy having to drive it a few times to use up the juice.

[stok40]

Thanks for your answers. Actually I notice a fluctuation in wattcat optimization between 90 and 96, is this the case with most cars? If I do the slow-charge-from-10% trick, should I expect that this fluctuation will stop? What is the experience of other owners here?

And does the hazard lights on trick actually work?

[russyj]

For those who’ve been through cell failure, how low is the capacity when you lose a cell? MyPace regularly shows 100% at around 74kW for me, which seems neither high enough to be OK nor low enough to be an actual issue?

Thanks!

[RobN]

For those who’ve been through cell failure, how low is the capacity when you lose a cell? MyPace regularly shows 100% at around 74kW for me, which seems neither high enough to be OK nor low enough to be an actual issue?

Thanks!

Not sure if you’ve got a cell failure but 74kWh seems a bit on the low side, I regularly get around 83kWh at 100% on MyPace. Be interesting to know what other folk on the forum get?

[Fluff]

With a cell failure, you will lose the whole string, until the failed cell is replaced.

Once repaired, the battery will need a couple of cycles to recover its total overall capacity.

Charging slowly and leaving it on charge to balance will bring back some capacity, the granny charger is ideal for this.

[Jaganon]

When mine had a cell failure, the estimated energy was around 62KWh with 150 miles range driving Miss. Daisy. This is around 25% down on full, showing the string being inoperative.

74% is hopefully to do with balancing?

[russyj]

For those who’ve been through cell failure, how low is the capacity when you lose a cell? MyPace regularly shows 100% at around 74kW for me, which seems neither high enough to be OK nor low enough to be an actual issue?

Thanks!

Not sure if you’ve got a cell failure but 74kWh seems a bit on the low side, I regularly get around 83kWh at 100% on MyPace. Be interesting to know what other folk on the forum get?

Did a granny charge from 6% all the way up uninterrupted and MyPace now showing 81.4kWh so thanks for the tip! Interestingly guess-o-meter still shows exactly the same mileage so the car must know it’s always been right.

Watching it run during Octopus Agile peak period was agony though

[i-Tray]

Just got mine back after a 7 week wait. Dealer did not identify problem on first visit, despite ‘full diagnostics’ test, which did NOT include a capacity test they told me.
Had to supply months of charge data to prove my point; ie typical range 150miles, would not charge much beyond 50kwh, etc.
Second visit, which took 7 weeks, resulted in 1 module replaced and a pressure test that revealed a need to reseal the whole battery frame.

[Jaganon]

All OK now I-Tray?
Was it Harwoods Croydon?