Topoff charge?

[mikeg3]

There is still a bit of ambiguity about TMS on unplugged Volts in hot weather. This is what I've been able to glean.

1. A Volt with high SOC will use the TMS as needed to protect the battery. This shouldn't be hard. The sun's heat has to make it through the car and the extra insulation around the battery. The TMS has direct access to the battery. Guess who has the edge?

2. A Volt with relatively low SOC will not use the TMS to protect the battery but batteries with low SOC are less vulnerable to permanent degradation and the battery insulation is still there.

3. The white Volt car cover is quite effective in protecting the battery. I've parked all day in 100 degree weather with the Volt car cover on and the interior was not very hot. Since the battery has a lot of insulation, the battery should be safe.

[solar_dave]

Question: If you have the car set up for delayed charging and connected to the AC, the battery will not charge until its time slot. Will the TMS still draw power from the wall to maintain battery temp, even when it is not actively charging during the programmed time slot?

Yes it does, proved from my TED data collection, it will bump about 800 watts for a few minutes every 4 hours or so in the AZ heat. This is only proved on a fully charged Volt.

[drbruns]

Dave

Thanks for the confirmation.

[cmr]

Yes it does, proved from my TED data collection, it will bump about 800 watts for a few minutes every 4 hours or so in the AZ heat. This is only proved on a fully charged Volt.

cool, so it will take care of the battery temp even though it's not time to charge..... that is good information..... thanks for posting it.

[silvercorvette]

It's hard to make predictions especially when they are about the future, how do you predict that there won't be something unexpected that may happen that may require you to drive somewhere? We also should be aware the adding a partial charge causes no harm so why not plug in?

[focher]

I wish they had installed a remote charge door closer inside the car. I've had to stop and close the door a few times.

Right there with ya on that one.

[cmr]

Right there with ya on that one.

me too........ when you close the door and it is dusty or dirty it scratches it, it's like rubbing it with sand paper. my black suburban is the same way except you only touch it about once every 2 weeks.