f1geek said:
I have found the e-Golf GOM to be over optimistic at full charge. If the GOM says 90 miles in 70 F weather and you are driving conservatively, your car probably already has significant battery degradation. If you can achieve 6 miles per kWh shortly before a full charge , the GOM may indicate 90 miles of range but your battery may be near warranty failure (15x6=90). You really need trip efficiency, end of trip SOC and miles driven to be able to calculate usable capacity. The closer your trip gets you to “the turtle”, the more accurate the calculation.
I have seen some of the posts on how to calculate this, but am a little unclear how to do so without knowing the starting point.
That said, we have averaged 4.1 miles/kwh since we bought the car. Best we have ever seen so far for a trip was ~5.1 miles/kwh so the GOM has never had the luxury of using 6 as a multiplier for us. We probably don't drive super conservatively
When do we see "the turtle"? We have driven it down to less than 9 miles remaining, the car automatically activated Eco Mode, with the "energy meter" rapidly dropping, but still no turtle.
A good understanding of how to accurately determine battery degradation within the 3 day return window could be very helpful to used e-Golf buyers. (At least those buyers were aren't as impulsive as my wife and I were.)