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Old 10-12-2019, 11:59 AM   #1
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Battery Charging While Driving

The last 2 days while travelling out batteries were only charging up to an indicated 90% after 10hrs of being connected to the tow vehicle.

As well our trailer has the solar panel on the roof.

Just surprised that an indicated 100% was not shown as both days were sunny as well.
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Old 10-12-2019, 12:23 PM   #2
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You do not mention your tow vehicle. Also did you have a direct wire run from the front to the rear 7 pin connector? The stock wiring is probably not thick enough to allow a lot of current to flow to your trailer. You solar should be the main charge for your trailer during the day. Are you using propane for the refer while towing?
Also your avatar shows: cabin, 2018-21? You are towing a 2018 Escape 21, Correct?
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Old 10-12-2019, 12:25 PM   #3
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hoe low was it before traveling?
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Old 10-12-2019, 12:58 PM   #4
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The latest version of the GoPower solar controller (which is likely the one in your 2018 21) will indicate a full battery as 90%. It will only show 100% after equalization, or a second absorption stage (run by pushing the Maximum Boost Button). See page 19 of the manual.

Generally, the charging voltage available from most tow vehicles is too low to fully charge the battery. It may help keep it from discharging, particularly if you attempt to run the refrigerator on 12V, but only if the wiring size is large enough to pass the needed current. Many tow vehicles do not have large enough tow charging wiring, and the alternators are not designed to charge trailers, only the tow vehicle battery.
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Old 10-12-2019, 01:27 PM   #5
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yes the trailers is a 2018 21

Thanks for the tip on maximum charge in the manual
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Old 10-12-2019, 02:35 PM   #6
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Many people run their fridge on 12v while towing, I used to. Now I run the fridge on propane while towing so the battery charges. The fridge on 12v never really worked that well.

Just remember to turn off your propane fridge before you pull into the gas station.
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Old 10-12-2019, 02:51 PM   #7
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The larger fridges do not operate that well on 12v, propane however is very efficient.
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Old 10-12-2019, 08:38 PM   #8
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Quote:
Originally Posted by cpaharley2008 View Post
The larger fridges do not operate that well on 12v, propane however is very efficient.
We sure have seen that! We are still on propane cylinder 1 with no refills to date after our 8/2/19 pick up date and almost exclusive use of propane for the large 6 cu ft fridge, truly amazing! That's 5000 + miles and nearly 4 weeks of camping on 1st tank. Still haven't had to switch my fancy auto switch to tank#2!
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Old 10-12-2019, 10:06 PM   #9
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Still haven't had to switch my fancy auto switch to tank#2!

If it's automatic, maybe it has switched itself?

I ran out both tanks because I didn't check the switch gauge.
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Old 10-13-2019, 06:31 AM   #10
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If I'm told some feature/function is 'automatic' I tend to watch things a bit more closely.
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Old 10-13-2019, 08:01 AM   #11
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If I'm told some feature/function is 'automatic' I tend to watch things a bit more closely.
When Iím told itís automatic, I usually say whereís the manual override?
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Old 10-13-2019, 08:50 AM   #12
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When Iím told itís automatic, I usually say whereís the manual override?
Iowa Dave
Perhaps I should be more clear, the auto feature does switch the tank , but you must be diligent and watch the green vs, red indicator on the device. It is supposed to turn red and then you switch the tank lever manually and then safe to remove 1st tank and fill.
However, I will be taking a spare propane tank next weekend just in case the nefarious Auto bug has bitten me!
Thanks for the appropriate warnings!
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Old 10-13-2019, 10:10 AM   #13
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Perhaps I should be more clear, the auto feature does switch the tank , but you must be diligent and watch the green vs, red indicator on the device. It is supposed to turn red and then you switch the tank lever manually and then safe to remove 1st tank and fill.
However, I will be taking a spare propane tank next weekend just in case the nefarious Auto bug has bitten me!
Thanks for the appropriate warnings!
I close one tank and switch when the other runs out. If I have to watch indicators I will forget and both will be dry!

It naturally runs out when raining buckets or the dead of nite after I've watched the 'Walking Dead'.
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Old 10-13-2019, 10:12 AM   #14
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When Iím told itís automatic, I usually say whereís the manual override?
Iowa Dave
I will wear a override switch out!
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Old 10-13-2019, 12:21 PM   #15
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So, you have to pull over, go inside and turn off the fridge before pulling into a gas station? Do you also have to turn off the propane tank? Thanks.
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Old 10-13-2019, 12:27 PM   #16
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So, you have to pull over, go inside and turn off the fridge before pulling into a gas station? Do you also have to turn off the propane tank? Thanks.

You don't have to shut off the propane, just extinguish open flame. Of course, lots of people don't even do that. They choose a pump on the outside so that the fridge ( and flame ) is on the opposite side from the pumps and several feet back, out in the open.
I think with devices used these days to trap gasoline fumes from the filler and nozzle that fuelling is much more safe than in days of yore.
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Old 10-13-2019, 12:39 PM   #17
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Thanks.
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Old 10-13-2019, 01:03 PM   #18
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Tunnels and ferries that are signed to shut off propane or limit tanks must be obeyed.
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Old 10-13-2019, 01:46 PM   #19
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You don't have to shut off the propane, just extinguish open flame.
True.

Quote:
Originally Posted by gbaglo View Post
I think with devices used these days to trap gasoline fumes from the filler and nozzle that fuelling is much more safe than in days of yore.
Most places in North America don't have vapour recovery systems on fuel dispensing pumps.
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