Should Level 2 charger be unplugged during an AC power outage?

[Murray C.]

When there is an AC power outage in my home, should I leave my Level 2 Charge Point charger plugged into my 2019 Model 3? Will it discharge the battery, or will the charge level remain the same until power is restored? I understand that there is always a marginal amount of the battery's power used for misc. as the car sits in my garage, even when it is plugged into the charger and AC power is being successfully delivered. Any tips or special considerations for this situation?

 

[Sophias_dad]

Just ignore the power outage. It won't drain the battery, and charging will continue when AC comes back(probably after a random small delay, if its like an HPWC)

 

[ATPMSD]

I would be worried about other stuff long before my Tesla. The Tesla has an excellent power protection system.

 

[blurrybird]

Thank you for posting this.

I’ve just come home to no power, but want the car to charge as soon as power is restored in the middle of the night!

 

[cali8484]

Just be aware that Tesla may require you to unplug/replug after charging disruption. Otherwise, it may not resume charging when the power comes back.

 

[Sophias_dad]

Just be aware that Tesla may require you to unplug/replug after charging disruption. Otherwise, it may not resume charging when the power comes back.

That's not how it works. There's a random multi-minute timer built into the charger per Page 8 of the HPWC manual. "charging will automatically resume within 1 to 3 minutes after power restoration" is the actual quote.

 

[cali8484]

That's not how it works. There's a random multi-minute timer built into the charger per Page 8 of the HPWC manual. "charging will automatically resume within 1 to 3 minutes after power restoration" is the actual quote.

It's the car not the EVSE that may require the unplug/replug to resume charging. I have seen this multiple times when there is charging disruption due to unstable/interrupted power.