Charging battery while towing - what does it?

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Tom in NM
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Joined: 06/07/2020 - 18:17
Trickle charge

I looked into this a bit when I was questioning whether  the power wire on a new 7-blade plug was large enough. I found multiple posts on various websites and forums that explained that it is really the equivalent of a trickle charge coming from the tow vehicle. Given the voltage drops along the way, it will not fully charge a trailer battery. It should be viewed as a way to maintain rather than recharge the battery. This is what I've read. 

What has been people's experience? I haven't driven much with a discharged battery so I don't have personal experience. 

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