12volt battery not charged in summer

Old 01-29-2019, 09:48 PM
Thread Starter
Join Date: Nov 2016
Posts: 42
Default 12volt battery not charged in summer

I have an 07 FEH with very low miles. It had 12V battery charging issues in the summer however it works fine in winter. In summer when temperature reached 100F and the A/C is on for about an hour, the 12V battery became 10V and caused lots of issues including break issues. When it happened, there was no check engine light except the check brake light. Scanned but found no code. I'm thinking to sell it but want to fix it before sell it. Just don't want anything bad happen to next owner. Any idea?

Last edited by accent2010; 01-29-2019 at 09:59 PM.
Old 02-16-2019, 04:05 AM
GatorJ's Avatar
Pretty Darn Active Enthusiast
Join Date: Apr 2006
Posts: 402
Default Re: 12volt battery not charged in summer

Start with having the 12 volt battery fully tested. If it is bad or marginal, it can cause a myriad of problems.
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