[StreetUrchin]

Hopefully today is the first day this occurred, but hard to say. I noticed when I was about to plug in my ELR that our Clipper Creek LCS-25 that was lit up as charging yet the Volt's indicator was flashing for charge complete (and it was full/see blow)

Unplugged Volt -> EVSE shutdown as expected
Turned on the Volt -> showing full charge
Plugged Volt back in -> charged a few minutes then went back to flashing on the Volt, yet EVSE showed charging & can hear a slight hum (presumably the relay for charging)

Unplug the Volt and plug in the ELR (which was about 1/2 charge) -> normal charge lights on both
Checked back in 2 hrs and the ELR was done charging the EVSE charging light was off.

So it appears the Volt is the culprit. Will give it another test tomorrow. I'm still on the original 12V battery, but I've not found/read anything quite like this as this as a symptom. Was thinking perhaps to do a pre-emptive battery replacement soon, but any thoughts before I haul it off to the dealership to take a look at the charging system?

 

[Prohidium]

Double check that you do not have any delayed charging set up. If delayed charging is set up, your light will blink on off until you hit the charge time and will the charge. Sounds like that might be what is happening. Also, if delayed charging is set and you unplug and then plug in, it will start charging and override the delay. That is another indication you have set delayed charging.

 

[StreetUrchin]

Double check that you do not have any delayed charging set up. ...

Will double check, though we've never set up the delay charging since we aren't on time-of-day rate (yet) except for tinkering once back when we first got it in '13.

The concern is that the EVSE relay is actually providing power (EVSE charging light is on, not just the Power light) even though the Volt (blinking light on Gen1) isn't calling for it.

 

[rob]

Is the car in a heated garage?

If the battery gets cold the car will pull power from the wall periodically to heat it back up to a "target" temperature. The EVSE relay will need to close for that to happen. The dash charge light doesn't come on when it's doing this.

 

[DonC]

I suspect you have a problem and this is not a one off. I'm not, however, prepared to say it's the Volt. My guess is that it's the EVSE. Sometimes my EVSE does wonky things. It's intermittent so plugging in another car might get a different result. If you continue to have a problem with the Volt but not the ELR you should take the car to the dealer. Of course they'll plug it in and it will be just fine! (You know this will happen).

On the other hand maybe it was a one-off. Time will tell.

 

[TSquare]

When my garage is cold, my EVSE comes back on every 2 - 3 hours for a few minutes. It's just keeping the battery warm.

 

[canehdian]

It's normal.
The light on LCS-25 just means (some) power is going through.
It could be a handful of watts to charge the 12V, it could be a couple hundred to heat/cool the battery, or it could be the full 3300.

 

[StreetUrchin]

Yep, looks like it might have been a fluke. While I'm familiar with it coming back on once a while for it doing it's maintenance business. It had been on for a good 1/2 hour after the charge was completed (after I had cycled it once yesterday), and it was warm in the garage (had ran that heater that day and is well insulated)

Today it behaved normally after taking it for a drive and charging back up. So was probably just being a bit too protective! Though will still keep an eye one it out of good ol' paranoia!

 

[hellsop]

I know cell balancing happens after a charge, but does it happen BEFORE or AFTER the dashboard signals "full"?