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My Juicebox Pro 40 charging indicates 7.6-7.7 until 100% charged, then it drops to 0 for a very brief moment. Its behavior after that is inconsistent but usually jumps back up to 3.x-6.x and unsmoothly tapers down from there for some inconsistent period of time, usually about 1 hour.
That part may be cell balancing done by the battery management, where it charges and drains various cell groups top make sure they are in “balance.” This is done when battery is full.
 

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I occasionally use a 50kW Chargepoint charger (actually 48kW if you read its label). It's display shows a 42-45kW rate until the car gets to 85%, tapers to 30kW at 91%, 20kW at 96$ and then drops off from there. The last part takes about 20 minutes to get to 100% if left to charge to that level.

My Juicebox Pro 40 charging indicates 7.6-7.7 until 100% charged, then it drops to 0 for a very brief moment. Its behavior after that is inconsistent but usually jumps back up to 3.x-6.x and unsmoothly tapers down from there for some inconsistent period of time, usually about 1 hour.
These results are fairly well documented by now. There are charts, including at https://pbs.twimg.com/media/DoQuXPhW0AAHl9_.jpg that show how the car regulates charging rate based on SOC, and also compares the similar tapering of other EVs.

On my I-Pace, despite the chart, I can achieve 100 kW charging for a limited period before the car throttles charge rate to 82-84 kW. (I suspect this lowering to 82 kW is related to the ambient temperature and the (in)ability of the I-Pace to keep the battery at optimal temperature.) If the charger's max output is 50 kW, then you can adjust accordingly.
 

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My problem is that I use the ECar Northern Ireland / Republic of Ireland Fast Charger Network, of which there are 334 in Northern Ireland of which 320 are fast chargers, 14 rapid chargers. Problem is that Jaguar have restricted the output from the normally 22kw/h fast chargers to 7 kw/h maximum charge per hour. So unless I can find a Rapid Charger you cant go far in Ireland without a long delay, and Ireland is a big place. My advice dont buy an IPace in Ireland unless you are prepared to wait for a slow recharge when away from home.
 

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Just seen this older thread, but wanted to post a snapshot of my ChargePoint charger's activity. Near constant charge rate (7.4 -7.2kW) until approximately 95% SoC, then a sharp drop off with no spikes or jumps.
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Just seen this older thread, but wanted to post a snapshot of my ChargePoint charger's activity. Near constant charge rate (7.4 -7.2kW) until approximately 95% SoC, then a sharp drop off with no spikes or jumps.
Does the battery reach 100% and does the car have H264 installed? I think there's three possible answers. One, the graph is condensed into multiple hours of charging and doesn't show the fluctuations as the rate of charge slows down near 100% and appears to fall off the cliff yet is still charging. Your session lasted over 8 hours to put 65 kWh so I think this is the most likely answer. Two, Pre-H264 TopiX showed that some cars would only charge to 97% yet showed 100%. H264 was supposed to fix this. Three, the new BMU update (I think it's H280) is supposed to fix the charging problems that H264 was supposed to fix yet did not.

If the battery reaches 100% then I wouldn't worry but if you have WattCat you can verify how many kWh are in the battery.

I have ChargePoint and the graphs from my charging sessions appear exactly as yours but the drop off starts near 100%. Either way, if your battery is showing 100% then everything is okay.
 

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My problem is that I use the ECar Northern Ireland / Republic of Ireland Fast Charger Network, of which there are 334 in Northern Ireland of which 320 are fast chargers, 14 rapid chargers. Problem is that Jaguar have restricted the output from the normally 22kw/h fast chargers to 7 kw/h maximum charge per hour. So unless I can find a Rapid Charger you cant go far in Ireland without a long delay, and Ireland is a big place. My advice dont buy an IPace in Ireland unless you are prepared to wait for a slow recharge when away from home.
Jaguar hasn't "restricted" the output, per se. Those ECar "fast chargers" are AC EVSEs, not true chargers. The AC charger is inside the car, which in the case of the Jaguar is a 7.7 kWh charger. Very few cars have an onboard charger that can charge at more than 7.7 kWh (basically only Teslas). What you're saying is true of any EV, including a Tesla: you cannot rely on AC charging (what we in the US would refer to as Levels 1 and 2) when traveling, you must seek out a true DC charger (what you've called "rapid chargers").
 

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No problem that I am aware of. Charges to 100% everytime. Just wanted to share to compare with the chart showing spikes. Even when the charging graph is not extented, I still see a similar steep decline followed by a slight "bump".
 

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No problem that I am aware of. Charges to 100% everytime. Just wanted to share to compare with the chart showing spikes. Even when the charging graph is not extented, I still see a similar steep decline followed by a slight "bump".
Glad that all is well. The bump is battery cell balancing at 100%. I was surprised when I compared your graph with mine and they were identical almost to the kWh added.
 

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Is there a way to program charging up to a preset level and stop the charging upon reaching it (to prolong battery life)?
 

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Is there a way to program charging up to a preset level and stop the charging upon reaching it (to prolong battery life)?
Jaguar has stated that it's okay to charge to 100% unless you're using a fast charger at 100kWh or higher. That being said, there's an aftermarket app called WattCat that allows you to charge to a specific percentage. The app is awesome in many ways and is available for Android phones on Google Play. Unfortunately it's not available for IOS.

Before I had WattCat I used timed charging to reach 80%. My level 2 charger adds 8% per hour so if the battery was at 30% I would set the timed charge for 6 hours 15 minutes.

Some drivers prefer to charge to 85% - 90% so that the regen feel is the same as lower SoC and they can drive single pedal.

Jaguar recommends 100% because the battery enters into a cell balancing mode which helps battery life.
 

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I will switch the conversation here about my charging facts:
Here is the graph from my latest charge

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The initial SOC was 18% and it took almost 24h to fill up to 100%. The initial charge was about 7kw but rapidly dropped to 3.5kw for almost 6 hours. The charge seems to be very slow between 8am and 2pm. The only explaination I have is that the sun was hit by the sun at that time.Then, the speed ramped up slowly when the sun was hidden by the trees.
Do you experiment the same issue when tn the temperature is quite high outside (charge at 3.5kw) ?
graph generated by : https://ipace.herokuapp.com/static/charge.html

I will add a temperature graph in the next version to correlate with temperature.
 

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Thank for pointing me to this thread @sciencegeek . I completely skipped that one.
I have added the local temperature where the car stays in my graph, updated on an hourly basis . Next time I will be able to see the correlation.
For your graph in the other thread, how did you get the cabin temp ? manually ? I can't see any temp value in the API. No cabin temp, no battery temp. The only temp I have access to , with the API, is the ENGINE_COOLANT_TEMP, and it is always set to "-60".

Did Anyone made a test with a cabin preconditioning before charging the car ?

There is a parameter in the API :
EV_PRECONDITION_PRIORITY_SETTINGPRIORITIZE_COMFORT
the other value is PRIORITIZE_RANGE
I am wondering if this parameter could have an impact on the charge on a hot day.
 

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I wanted to test in impact of the internal cabin temperature on charging speed. I have started the charge with external temp at 30c. I guess the inside temp was a bit above that value. After an hour I have started with the remote app the A/C with a target value = 21c. You can see the impact on the charging speed on the graph. After 30 min, the A/C stopped, and you can see that , as well in the graph. The pink line (km/h) does not seems to be reliable. It should be correlated to the SOC %/h and kw/h (cyan and purple) but I don't see spikes on the those one, when the km/h has.
I have added the external temperature on the graph (green line). The charge is not completed yet.

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My charge is complete now. Interesting fact: the rain started around 2:15pm and the outside temperature drop by 5 deg (from 29c to 24c), and at the same time the charge rate was better (from 2.7kw to 3.5 kw) . Note that I probe the outside temp once an hour, so the change on the graph may not align with the real timestamp. Conclusion: I can't see a correlation with the cabin temperature, but I see one with outside temp. This is not very scientific because it is only one sample. I need more.

Anyone wants to share his charging stats to compare ?

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