Storeage
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,932
Likes: 12,344
From: NE South Carolina
Yep see Andy's DATA! 10 milliamps = 0.01 amps. Times 12 volts = 0.12 WATTS, A single small AAA penlight LED bulb is ~2 Watts! There is NO need to use a charger on an 80% charged C8 Lead Acid Battery parked for 3 weeks.
If the OP doesn't have a charger, from my 4 year experience with my 2020 C8, drive ~30 miles and the battery will be fully charged to the level GM specifies to save energy. All that is needed.
But understand folks will do what they believe!
If the OP doesn't have a charger, from my 4 year experience with my 2020 C8, drive ~30 miles and the battery will be fully charged to the level GM specifies to save energy. All that is needed.
But understand folks will do what they believe!
Race Director
Joined: Mar 2007
Posts: 11,360
Likes: 8,512
Hi,Yes, the car was tested for parasitic draw
It sat overnight, the key fob was moved far away at the dealer, and the front latch was clicked so that it didn’t think the frunk was open.
It was tested at .02 amps for the parasitic draw
thanks for replying to all this and hope all is well
It sat overnight, the key fob was moved far away at the dealer, and the front latch was clicked so that it didn’t think the frunk was open.
It was tested at .02 amps for the parasitic draw
thanks for replying to all this and hope all is well
Yep see Andy's DATA! 10 milliamps = 0.01 amps. Times 12 volts = 0.12 WATTS, A single small AAA penlight LED bulb is ~2 Watts! There is NO need to use a charger on an 80% charged C8 Lead Acid Battery parked for 3 weeks.
If the OP doesn't have a charger, from my 4 year experience with my 2020 C8, drive ~30 miles and the battery will be fully charged to the level GM specifies to save energy. All that is needed.
But understand folks will do what they believe!
If the OP doesn't have a charger, from my 4 year experience with my 2020 C8, drive ~30 miles and the battery will be fully charged to the level GM specifies to save energy. All that is needed.
But understand folks will do what they believe!
"Verify there is less than 40 mA of parasitic current drain." (which is what you said above too).
But I have not seen that much draw. The car does wake up from time to time and draw a little more. And the manual mentions that certain aftermarket devices can trigger the car to wake up - so that's interesting. Its not just the added parasitic draw of an aftermarket device, it is also that it might wake up portions of the car systems drawing even more.
The manual still has the same discharge time tables that you posted above. Even at 40 ma the tables show that it would drain an 80% charged battery to 50% state of charge in a little over 20 days. Three weeks I think is ok, but more is iffy (in my view).
