Very slow charging

[Lalin]

For the past few charges at 350Kwh EA stations my charging speeds are in the 60’s, and peaking to the lower 100s.
Outside temp is mid 40s and my battery fully conditioned.
Are you also experiencing this slowdown?

 

[Looney100]

What do you mean by "fully conditioned"? What SOCs are you referring to?

Assessing what is driving charge rates is nearly impossible without an OBD reader - and incredibly simple with one.

 

[Lalin]

What do you mean by "fully conditioned"? What SOCs are you referring to?

Assessing what is driving charge rates is nearly impossible without an OBD reader - and incredibly simple with one.

Fully conditioned means that a couple of minutes before I reached the EA station the battery conditioning indicator just turned off. My initial SOC was 37%.

 

[Looney100]

Fully conditioned means that a couple of minutes before I reached the EA station the battery conditioning indicator just turned off. My initial SOC was 37%.

I’ve found that when it’s particularly cold and I’m driving at highway speeds, the battery warmer is ineffective.

 

[Lalin]

I’ve found that when it’s particularly cold and I’m driving at highway speeds, the battery warmer is ineffective.

The battery conditioning should remain on until the battery reaches 70 something degrees and only then shut off. At least that’s the theory.

 

[Gen-EV]

Assessing what is driving charge rates is nearly impossible without an OBD reader - and incredibly simple with one.

Are you watching anything other that the various battery temperatures and SOC on your ODB when charging?

 

[Looney100]

Are you watching anything other that the various battery temperatures and SOC on your ODB when charging?

Heater activation and temps are helpful to understand capability to receive a charge. Power requested from the car, the power the charger is targeting, and power actually being delivered by the charger. With these, one can clearly see if any slowed charging is driven by the car or charger.

 

[skiingj]

I charged twice in Tahoe this weekend. On one occasion it was below 30 degrees, I was fully conditioned, light out 10 minutes from charger, highway speeds with a variety of snow on the ground. I went from 30-84 in 20 minutes.