Lovemyev
Distinguished Member
- Joined
- Jan 23, 2021
- Messages
- 8,127
- Reaction score
- 8,912
- Points
- 2,669
- Location
- N.Wales ZS EV ( Gen 2 ).
Thank you @MilesperkWh .The new maximum voltage will be around 449/450V (assuming no loads on like climate etc). The minimum voltages have been adjusted to keep the range equal.
This has confirmed my theory then that the pack voltage had been reduced for some reason after the Jan 15th update.
Yes - we need to balance our packs IF they have been affected by any of the previous “Buggy” software BMS issues.
But if like me, you never had the “Buggy” BMS updates and you have been updated to the latest update released Jan 15th - then your pack is less likely to be badly affected.
So, in affect the longer your car has been running on the “Buggy” versions, the more likely your pack will be affected.
It’s just plain common sense really.
Reducing the voltage at the factory from 455 volts down to around 449 - 450 volts may have been as a result of cars blowing the HV fuse !.
In affect, the software released on the 15th Jan should correct all of the problems encountered by the previous versions of updates in my book.
Please feel free to correct me if I am wrong here please @MilesperkWh .
If my theory is correct, then chasing the previous 455 volts once seen on the pack prior to the latest update after a full charge, is totally futile !.
If your HV battery has been badly affected by previous “Buggy” versions and your pack voltage is down at 430 volts, then yes there is improvement to be made for sure.
I appears that the 455 volt unicorn ? has been overruled by the new kid on the block.
The target ? now is the same as the production models leaving the factory then at 450 volts ?.