On our last trip our electrical system has begun to discharge while traveling. It is fine while charged and in one place but on arrival after traveling it does not have enough power to raise the unit. any suggestions would be appreciated

Check the fuse in your tow vehicle that supplies the 12V power to your trailer. It is separate from the one that powers the lights (running lights, turn signals, etc.). If things used to be fine, I bet that fuse is blown.

- Jack

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Hi-Lo 1707T
2005 F150 4x4 KR SCrew

Keep the refrigerator OFF while traveling and add a second battery, if possible. See my post How long refrigerator on DC? - Page 2 - Hi-Lo camper travel trailer forum.

Thanks for the info, I will check the fuse, to see if it has blown.
I already have a second battery and a solar panel, the reason I do not think ti is the batteries is that after charging it will sit unplugged for more than a week and go up fine.
Thanks

Now I'm certain it's the fuse.

This was posted in another thread, but something that can blow the fuse is raising the top with the tow vehicle plugged in and its engine running. The lift motor gets its power directly from the battery, so, if you combine the very heavy draw of the lift motor with a possible draw from the refrigerator (if it's in its "on" cycle) and the power being delivered from your alternator to maintain the charge state of your two batteries, you can easily exceed the 30 Amp rating of that fuse.

The cure is to disconnect the trailer from the tow vehicle before raising the top. I often raise the top just before moving the trailer the last foot or so into the place it's being parked. This lets me see the levels I've put on the lower half so I can move the trailer onto a leveling block if needed.

- Jack

Jack,
Thaks again for responding so quickly.

I checked the 30 amp fuse that says trailer tow, and it checks out as fine, my owners manual does'nt sho;w any other fuse for the tow package,any thoughts would be appreciated
Beetle

You may want to take a look at this forum thread.

Battery charging while towing

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Les

2006 22ft towlite (replaces 97 21TL)
2006 Toyota tacoma pre-runner 4.0 L V-6 quad cab
w/ 98 chevy Powervision towing mirrors

Beetle, Post #5 in the thread campthewestcoast gave you has the pin out diagram for a 7-pin trailer plug. If you have a voltmeter, probe the pin at 1 o'clock and the one at 7 O'clock (as you look at the plug from the rear of the vehicle) with the Tow Vehicle ignition ON. If the engine is running, you should see alternator voltage (13.7-14.2 Volts). With the engine off, you should still see battery voltage (12.5-12.7 Volts) as long as the ignition is ON.

If you don't get a reading there, you are not charging the trailer battery. And maybe you need to install the fuse in what seems to be an unused circuit.

- Jack

Jack,

Again, thanks for taking the time to respond, I will test to check .
Beetle