Forum Discussion
Huntindog
Dec 18, 2013Explorer
wrvond wrote:This goes against everything I have known to be true....
First, any tow vehicle with a factory tow package is going to have an upgraded alternator to handle the increased load experienced when the TT is plugged into the truck's connector. If you feel the need to connect your camper to the truck because the batteries are low, simply plug it in near the hitch, and it will charge them just fine.
Second, The way a vehicle's charging system works is, the vehicle actually runs off the battery for all it's electrical requirements, and while old fashioned generators had to run at higher rpm's before the charging started, today's alternators produce electricity at very low rpm's, so no need for high idle to charge the battery.
Purpose built generators provide nearly all their generated electricity for such things as battery recharging, which makes them much more efficient than your TV for recharging. Even at that, it takes several hours to recharge batteries to 100% with one.
hope this helps.
But I figured that maybe you were right and things have changed.... So I googled it. I can find nothing to back up what you just said.
Plenty out there about automotive altenators needing high rpms to produce signifiganant power.
I even found some info about lower powered altenators producing more at lower rpms than their higher powered counterparts... So much for the upgraded tow package altenators being better for this...
My mind is still slightly open to the possibility (mostly because I would like it to be true) so if you can please post up some links to back up your claims... I'd be grateful.
I actually tested this once with a meter. I got about 1.6 amps of charge.. Not worth the effort.
About Travel Trailer Group
44,056 PostsLatest Activity: Dec 27, 2025