CarPortal
Active member
I cannot seem to find what should be a simple answer to a simple question. 12v battery on 2014 Leaf S is dead. I reviewed Nissan's directions for jump starting the car which are pretty straightforward. So now it's "running" and drivable.
1 - Is the 12v battery being charged even when the Leaf is left on and in park in the garage? Is this an adequate (though probably inefficient) method to recharge the 12v battery? Its sitting now with all other systems off (AC, lights, radio).
2 - In order to test and then charge up the 12v battery with a regular 12v car battery charger what are the proper connections? positive/positive and negative/engine block like on a ICE? Or as I have read on various forums is it better to disconnect the battery from the car and connect it directly to the 12v charger.
Calling Nissan Leaf support was not too helpful.
Waiting to hear back from a tech at my dealer since the service advisor did't know.
My main concern is avoiding any damage to the car. I'm probably being overly cautious.
Thanks for your input.
1 - Is the 12v battery being charged even when the Leaf is left on and in park in the garage? Is this an adequate (though probably inefficient) method to recharge the 12v battery? Its sitting now with all other systems off (AC, lights, radio).
2 - In order to test and then charge up the 12v battery with a regular 12v car battery charger what are the proper connections? positive/positive and negative/engine block like on a ICE? Or as I have read on various forums is it better to disconnect the battery from the car and connect it directly to the 12v charger.
Calling Nissan Leaf support was not too helpful.
Waiting to hear back from a tech at my dealer since the service advisor did't know.
My main concern is avoiding any damage to the car. I'm probably being overly cautious.
Thanks for your input.