Battery icon on dashboard

backslashv · 01-02-2021, 02:46 PM

Recently, the battery light is coming on soon after engine is turned off. I believe the battery is near its lifetime but wanted to double check before proceeding with a new battery. When I check the voltage with Carly, with engine on, it shows 14.6 V and when off, it drops to 11.96 V. This is the original battery that came with the car and the car is at 66K mileage.

Are there other things I can check that can cause the battery light to come on? Otherwise, I think it's safe to say the battery must be replaced some time soon.

Thanks

Chicone · 01-02-2021, 09:43 PM

I’m with you, a 2015 with about 10k less miles than you. Even so, it’s a 6+ year old battery and the car has warned me a couple times. I’ve been driving so much less with the pandemic, so I’ve been hooking up to a AGM battery charger, hoping to extend the life until spring. You might want to try a AGM charger, hook it up for a good long while overnight, and see how it goes.

0w40X1 · 01-03-2021, 10:52 AM

I have the same year and model, and at 34k miles it drops to about 12.3 when off.

Good to know that a battery symbol shows up when under 12v and off.

It looks like you need a battery now.

I've scoped out Sam's Club who has a H7 AGM that fits, and has handles.

01-02-2021, 02:46 PM	#1
backslashv Second Lieutenant 106 Rep 246 Posts Drives: 2022 BMW M3 Competition Join Date: Apr 2015 Location: California iTrader: (0)	Battery icon on dashboard Recently, the battery light is coming on soon after engine is turned off. I believe the battery is near its lifetime but wanted to double check before proceeding with a new battery. When I check the voltage with Carly, with engine on, it shows 14.6 V and when off, it drops to 11.96 V. This is the original battery that came with the car and the car is at 66K mileage. Are there other things I can check that can cause the battery light to come on? Otherwise, I think it's safe to say the battery must be replaced some time soon. Thanks
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01-02-2021, 09:43 PM	#2
Chicone Private First Class 28 Rep 158 Posts Drives: 2015 X1 X35i M-SPORT Join Date: Jun 2018 Location: Seattle, Wa iTrader: (0)	I’m with you, a 2015 with about 10k less miles than you. Even so, it’s a 6+ year old battery and the car has warned me a couple times. I’ve been driving so much less with the pandemic, so I’ve been hooking up to a AGM battery charger, hoping to extend the life until spring. You might want to try a AGM charger, hook it up for a good long while overnight, and see how it goes. __________________ -Steve 2015 BMW X1 35i MSport // BMS Intake
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01-03-2021, 10:52 AM	#3
0w40X1 Lieutenant 34 Rep 485 Posts Drives: 2014 BMW X1 s28i M Sport Join Date: Sep 2013 Location: West Texas iTrader: (0)	I have the same year and model, and at 34k miles it drops to about 12.3 when off. Good to know that a battery symbol shows up when under 12v and off. It looks like you need a battery now. I've scoped out Sam's Club who has a H7 AGM that fits, and has handles.
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