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by roco1953
Wed Jul 08, 2020 8:13 am
Forum: General / Main i3 Owners Forum
Topic: 2017 i3 Rex 12V Battery Voltage
Replies: 6
Views: 808

Re: 2017 i3 Rex 12V Battery Voltage

Thanks for explaining this issue. But is brings me to another question:
How can I check the 12V battery with a Voltmeter when the DC/DC kicks in as soon as Open the door, trunk,etc ?
I just want to make sure my 12V batteryis healthy and does not need to be replaced.
by roco1953
Tue Jul 07, 2020 11:53 am
Forum: General / Main i3 Owners Forum
Topic: 2017 i3 Rex 12V Battery Voltage
Replies: 6
Views: 808

2017 i3 Rex 12V Battery Voltage

When I check the voltage of my 12V battery it shows permanently 14.2-14.4V. (using 12V car outlet)
Does it mean the battery is permanently charged via DC/DC from High Voltage Battery ?
If not in charge mode the voltage should read around 12.5-13V.
Am I correct ?

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