derminghsieh wrote:Wow, I do not not even know that much detail about stopping of the charge. Thank you for sharing. I thought the stop was due to too high or low a temperature in the battery or on-board charger. I will certainly ask the technician of the dealership if this is the way the on-board charger is programmed when I arrive there next week. Hopefully I can get some definite answer.
It happens to all triplets I know. It was first described by Malm.
In the summer, when the cells are hotter, the 70% pause happens very rarely. No idea why.
phb10186 wrote:Makes perfect sense... clearly the man who devised the Portuguese EVSE pubic charging network knew nothing about how EVs charge, and rather worked on the current-drawing model of an electric kettle.</span>
Your workaround is quite inspired.
To be fair, the portuguese public charging network is one of the first in the world. We already had hundreds of charging points before there were barely any electric cars at all. The problem is that is has remained in pilot phase for all these years and only now are they little by little updating the software. In the new version this problem seems to be resolved.
derminghsieh wrote:JoeS, I checked into the owner's manual for "Regular Charging is discontinued" and there are 5 possible causes listed. The one that, I think, most reasonable for my case is "The temperature of the main drive lithium ion battery is too high or too cold to charge". Well, I think you have reminded me a more compelling cause "excessive voltage sag between cells" and it really gets to my nerve because it means " I have bad cells."
I am really interested in your suggestion of using CaniOn to have a real-time monitoring at individual cell voltage while charging to see how serious the sagging is. I am checking into CaniOn section of this forum. Maybe the super-smart on-board charger is saving my bad cells.
There isn't any big voltage sagging in my car and it stops all the same. Actually, there was a study made with the fleet of electric cars (peugeot ion) of my city's town hall, and the charging data showed this as well in all cars. Like I said, with hot cell temperatures the 70% pause may not happen, but the 30% stops always does, no matter how hot or how cold it is.