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trickle charge for 120v battery sans AC

1030 Views 9 Replies 6 Participants Last post by  1typoman
I don't garage my Lightening. I've gotten the heebie jeebies about the woeful circumstances than can result from the puny 12v battery wearing down. I don't want to plug in a trickle charger into my house. Can I plug it into the truck? Alternatively, are there battery powered trickle chargers?

Thanks in advance!

I'm so loving this truck (not only b/c I'm charging it with excess PV electrons I've already generated that my util is storing).
I've always had an array of gear in my prior trucks ranging from chains, to strapping to fist aid, to come-a-longs, life jackets etc.
I'll move some of that over but i'm wondering if I need full socket sets and all the other tools (eg screwdrivers, wrenches) for my ICE trucks.
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It is possible to plug a battery charger into the ProPower Onboard system. However, Ford recommends disconnecting the 12v battery if you are going to put a trickle charger on it. If you disconnect the 12v battery, you can't run the ProPower Onboard.
That is crazy! Where (and why) does Ford recommend disconnecting the 12v battery before trickle charging? I do not see anything in the owner's manual about that - only to disconnect before storage.
That is for storage "When not in regular use". I've trickle charged vehicles, Polaris Rangers and lawn tractors all without disconnecting the 12v.
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