I would be very interested in update reports Carty. I too had the pre-duff BMS as I said elsewhere as my Excite was updated at its first annual service on 23rd October, the day before the duff BMS update was released. I assume therefore I have the June 2020 BMS software.
The car is working well with 456V consistently reported after a full charge. Range at full is 157 miles in Normal mode. Balancing takes about 2 ½ to 3 hours, longer than before the June 2020 update. My ZS EV is not going anywhere near any dealers' update computer until this settles down!
Please keep us updated in relation to any reduction in your balancing times Carty.
Your last paragraph sums up the situation perfectly Maxit! 🤣
Hi
@RicM.
Sorry for the delay in replying to this request.
I have been generally just charging to a SOC that suit our needs over the last few weeks.
Then I spotted you post, so I thought I would carry out a full charge and balance today !.
So, in short the balance cycle started at 9.00pm and it completed ( as close as I could gauge ) at 12.30am.
Therefore 3.5 hours to complete the balance cycle.
Better than the first balance cycle that I did after the BMS update, which took almost forever !.
At 3.5 hours, this is still longer than it use to take on the previous OEM software.
Balancing on the OEM software, would take between 1 and 1.5 hours to complete.
So, I am still seeing longer balancing time scales right, with the new 15th Jan 2021 BMS update applied.
I think this time scale could be reduced, by carrying out more & more balancing cycles.
But, to be honest I am just a little concerned that we could be just chasing a "unicorn" and causing more problems than we are curing, to the life span of our HV battery packs here ???.
Do I feel there is a difference "Pre / Post" updtate ?.
Yes - The balance process does take more time, that is for certain.
But, I have to say that I never been a big fan of charging the HV pack to 100% full every single time, in oder to cover only a few miles the following day.
I prefer the SOC charge, to suit my needs for the forth coming days ahead.
The car appears to perform fine and reports ( what I consider ) to be pretty good returns.
The consumption tends to be a "One On One" situation, when it comes to mileage covered, to the mileage used from the GOM.
Over the last few weeks, I have been returning around 4.1 M/kwh efficiency on a 100 mile trip, and it has done this a number of times now.
Similar length of trip, but different destinations as well.
I never like running the range down REALLY low, but when the running the OLD software, the amber range warning light would display at around 35 - 37 miles mark on the GOM.
A couple of times when running low on charge over the last few weeks, the amber warning would display at around 34 - 36 miles of remaining range left on the GOM.
So, it is pretty similar to the original display on the OEM software with this regard.
I would say in conclusion, that the only thing I have really noticed from PRE to POST update, is the increased balancing time.
Although it is better than it first was after the update, it is NOT as quick to balance as the original OEM software was pre update.
I still feel it takes WAY longer than it previously did, without an doubt !.
Hope this answers your question ( ish ).
