Drive or not to drive with an hybrid error

Hi guys
I know this probably is a very repeated topic, but I didn't find any topic with the same issue I have.
I am travelling on vacation with my wife, and 1200kms far from home the hybrid battery failed.
I have one cell with >1v delta from the others.
The car is loosing power, cutting the A/C and after some time I see the battery is not used anymore, starting to have some dropping in the SOC. I was stopping when it was reaching 20%, erasing the error so the battery charges back even with the fault on it.

The question is: Is it safe ( or relatively not very high risk) to drive back home in this situation?
I really don't have how to stop the car to replace the battery and my insurance don't cover the town truck back home that far.
Another option is to order a couple or cells from eBay and replace it on the street. I did it before, have the tools with me and the only problem would be the waiting for the battery.

Have you seen anyone driving with the battery fault for some time?

Regards
Luis

 

Sure
The codes are P0A80 and P3014.
Actually the car is an Lexus CT200h 2011.

 

Thanks all,
I'm parking the car and taking the train to the rest of the trip, and for the way back I'll drive it back.
Already have some battery modules going to my next hotel, but I'm not repairing it unless the car gets worse than it is now.
I'll tell you next week how was the drive back.

Regards
Luis

 

Yesterday I drove 100kms to the train station and it was fine. Christmas tree on the dash, but didn't went to full inhibition of emotors, so performance was not that bad and battery was kept withing the normal range.
I fell confident that it will drive back home safely.

 

Hi all,
I'm back here to share my experience of driving home with a broken car.
I managed to get home safely after driving almost 1500 kilometers with the Lexus with the battery in fault mode.
On this trip, I discovered that when the battery is bad, there are two levels (or more) of system protection.
In the first level, the car operates almost normally, with only a slight loss of power, perfectly possible to continue using indefinitely.
In the second level, it's not anymore. When the voltage difference of a cell is greater than 1 volt for a time longer than something between 5 and 10 seconds during acceleration, it completely cuts off the use of the battery, and with that, you lose air conditioning, the brake becomes heavy, the power limitation of the car is high and the battery starts to discharge uncontrollably. In this mode, it is no longer possible to continue driving, and I had to park the car somewhere safe and reset the ignition.
The trick is to find the driving point in the first level to avoid triggering the second level of protection.
After a few hours, you find the tricks.
If you accelerate and the 1v voltage difference remains constant, you have to lift your foot and press the accelerator again, so it doesn't fall into level 2.
There is also a point when your SOC is exactly 60% where if you keep the accelerator between 30 and 70% the battery is hardly used and the voltage difference stabilizes below 1v and you can drive like this for hours. If you break or lift off, you loose it and have to pedal again until getting to the correct SOC and pedal again.
The air conditioning at maximum helps a lot to find this point, because if the battery heats up it worsens everything."

My conclusion is, don't drive the car if a battery module is really bad, showing delta voltage of >1v all the time. But if you have no other way, it is possible to manage to drive as much as you need.

Once back at home, I replaced the bad module and the car is working great again. Didn't damage anything by using it like it was.

Best regards
Luis