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We are about to leave town for 10 days and I'm wondering whether I should leave the Bolt connected to the charger when we leave. The Bolt and the charger are in an unheated garage, which so far this winter has stayed above 32 degrees. But it's Michigan, and the weather can be unpredictable. Is it safe to leave the car charging for that period of time, basically unattended? Is it safe to NOT charge the car for that period of time? Thanks for any advice that you have.
 

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Leave it plugged in but set the car to not be fully charged. Either hill top reserve or a percentage if MY 2019.

From the manual:

Up to Four Weeks

.Plug in the charge cord.

Four Weeks to 12 Months.
. Discharge the high voltage battery until two or three bars remain on the battery range indicator (Battery symbol) on the instrument cluster.
. Do not plug in the charge cord.
. Remove the black negative (−) cable from the 12-volt battery and attach a trickle charger to the battery terminals or keep the 12-volt battery cables connected and trickle charge from the underhood remote positive (+) and negative (−) terminals. See Jump Starting - North America 0 295 for the location of these terminals.
 

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IIRC, the vehicle checks the 12V battery voltage much more often (?every 12 hours?) when it is plugged in and will charge it "for a little while" if it gets "pretty low" (?12.2V?) before it craps out.
 

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Leave it plugged in but set the car to not be fully charged. Either hill top reserve or a percentage if MY 2019.

From the manual:

Up to Four Weeks

.Plug in the charge cord.

Four Weeks to 12 Months.
. Discharge the high voltage battery until two or three bars remain on the battery range indicator (Battery symbol) on the instrument cluster.
. Do not plug in the charge cord.
. Remove the black negative (−) cable from the 12-volt battery and attach a trickle charger to the battery terminals or keep the 12-volt battery cables connected and trickle charge from the underhood remote positive (+) and negative (−) terminals. See Jump Starting - North America 0 295 for the location of these terminals.
Once again, it’s RTFM to the rescue!
 

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They don't mention it in the manual but I assume I should still leave it plugged in if it is parked outside? I have no garage and am going to be gone for about 3 weeks.

Leave it plugged in but set the car to not be fully charged. Either hill top reserve or a percentage if MY 2019.

From the manual:

Up to Four Weeks

.Plug in the charge cord.

Four Weeks to 12 Months.
. Discharge the high voltage battery until two or three bars remain on the battery range indicator (Battery symbol) on the instrument cluster.
. Do not plug in the charge cord.
. Remove the black negative (−) cable from the 12-volt battery and attach a trickle charger to the battery terminals or keep the 12-volt battery cables connected and trickle charge from the underhood remote positive (+) and negative (−) terminals. See Jump Starting - North America 0 295 for the location of these terminals.
 

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They don't mention it in the manual but I assume I should still leave it plugged in if it is parked outside? I have no garage and am going to be gone for about 3 weeks.
Manual recommends the car be plugged in if over 90F. May not be a factor there in Missouri. Manual also recommends that it be in the shade too. So outside in the sun might warrant leaving it plugged in.
 
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