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<blockquote data-quote="chasfm11" data-source="post: 23099" data-attributes="member: 3606">We have a 2018 FWD Equinox and have towed it since 2019.&nbsp; &nbsp; The first few years, there wasn't a problem and I could drive the motor home 12 hours a day with the Equinox coupled.&nbsp; &nbsp; Three years ago, I arrived home to a dead Equinox battery and I have not been able to keep the Equinox battery charged while towing since.&nbsp;I have learned the the onboard charging system deliberately does not bring the battery to full charge.&nbsp; It is a design &quot;feature&quot;.&nbsp;&nbsp; I followed the instructions for running the charge line from the tow bar manufacture where I bought the kit but now wish that I had used a heavier wire than the one they provided.&nbsp;&nbsp; I wondering if the current flow across the charge line is not enough to overcome the current loss on the Equinox.&nbsp; Also, I wonder if something that was supposed to &quot;time out&quot; within 30 minutes of starting to tow is no longer timing out.&nbsp; My plan is to put my Equinox in towing configuration, wait 30 minutes and then measure the current drain.&nbsp; I will then try to see how much current is flowing across the charge line.&nbsp; I've carefully checked all of the charge line connection points for any corrosion but this could be a poor ground problem between the motor home and the Equinox.&nbsp; I'm going to see what fuse 42 does in my model and may pull it during my testing to see if it makes a difference.&nbsp; I appreciate that tip.&nbsp; I greatly appreciate any other ideas.&nbsp; FYI, We are in Texas and it is sometimes necessary to run the genset to operate the roof air conditions while driving.&nbsp; I've wired the charge line to the genset/converter output temporarily and the Equinox battery stayed fully charged.&nbsp; &nbsp; I don't understand the possible difference between the converter output and the alternator output from the motor home engine.&nbsp; The diesel alternator is high capacity - 200amps</blockquote>

[QUOTE="chasfm11, post: 23099, member: 3606"] We have a 2018 FWD Equinox and have towed it since 2019. The first few years, there wasn't a problem and I could drive the motor home 12 hours a day with the Equinox coupled. Three years ago, I arrived home to a dead Equinox battery and I have not been able to keep the Equinox battery charged while towing since. I have learned the the onboard charging system deliberately does not bring the battery to full charge. It is a design "feature". I followed the instructions for running the charge line from the tow bar manufacture where I bought the kit but now wish that I had used a heavier wire than the one they provided. I wondering if the current flow across the charge line is not enough to overcome the current loss on the Equinox. Also, I wonder if something that was supposed to "time out" within 30 minutes of starting to tow is no longer timing out. My plan is to put my Equinox in towing configuration, wait 30 minutes and then measure the current drain. I will then try to see how much current is flowing across the charge line. I've carefully checked all of the charge line connection points for any corrosion but this could be a poor ground problem between the motor home and the Equinox. I'm going to see what fuse 42 does in my model and may pull it during my testing to see if it makes a difference. I appreciate that tip. I greatly appreciate any other ideas. FYI, We are in Texas and it is sometimes necessary to run the genset to operate the roof air conditions while driving. I've wired the charge line to the genset/converter output temporarily and the Equinox battery stayed fully charged. I don't understand the possible difference between the converter output and the alternator output from the motor home engine. The diesel alternator is high capacity - 200amps [/QUOTE]

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