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Old 09-22-2022, 08:38 PM   #41
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I wonder how much work it would take to replace the batteries with Lithium batteries to avoid running the generator.

You mentioned that the generator was surprisingly quiet. I’d love to see some footage of it running if you have any!

As I mentioned, I’m very close to buying a Rize 18A, but it’s a drive to make it down to the dealer to try all things I forgot to do when I was there last!

Im less concerned about the cost of gas to run the generator, but more so want to be more incognito for any impromptu boondocking situation.
You're all over the place... love it. I would recommend spending some time watching Youtube reviews of the various RVs that are appealing to you. Lots to learn. Big investment so you want to be sure to get it right.

Let's not turn this thread into a Lithium discussion since the Rize/Scope doesn't have that. Yes, would be a lot of work/money to replace batteries, and having to turn on the generator or not isn't 100% related to the battery type.

Footage of my generator running would not be super useful as that would depend on the volume setting of your computer/speakers. Let's say the propane i2800 is a bit quieter than some of the previous Onans, allowing you to have a normal conversation inside the vehicle, but still not being stealthy where you could be hiding out somewhere. A bit louder than the higher end Honda generators.

Keep in mind the generator is mostly used for two scenarios: If you need to run the A/C (or microwave, although that is rarely "needed"), or to recharge your batteries. The former only applies if you are in hot climates/seasons, the latter if the solar panels can't keep up with your battery usage. For me, rarely needed except for a summer vacation in the deserts w/o plug in.
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Old 09-22-2022, 08:46 PM   #42
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Thanks for the reply. Our laptops have those DC power blocks on the cables which only have a 3 prong connection.

I don’t believe there is usb to 3 prong adaptor in the short time I spent googling for one.
Right... those bricks are little transformers which take the 110VAC to something around 19 VDC usually. There is no adapter like you were googling, that would be the inverter.

So, to charge your laptop you would go from 12VDC (house batt) to 110VAC (via inverter) down to 19VDC (or something like that, via your power brick). Each conversion loses a bit of efficiency.

Just my opinion: If you are planning to work a lot from the RV, consider upgrading your laptop to a USB-C charge-able model. If you can afford a $90000 RV you may be able to spend $600 or so for a new lappy.
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Old 09-23-2022, 02:46 PM   #43
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I donít believe there is usb to 3 prong adaptor in the short time I spent googling for one.
I've never seen one either. In my Roadtrek, I just turned on the inverter for long enough to charge my laptop. The solar took care of catching up what charge it used. Again... look at getting a small inverter to plug into the 12v receptacle. Many people use one for their TV so that they can watch in the evening and not have to turn on the big inverter. Not sure how much you need for computer charging...
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Old 09-29-2022, 11:00 PM   #44
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Weekend hiking in Sequoia/Kings Canyon. Nice place to hang out in the evenings too.

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Old 09-30-2022, 02:44 AM   #45
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In looking for better quality, one can also look for an older, well cared for RV. Some (not all) of the older RV's were better built than today's new ones. For example, our older van didn't cost much and was constructed with no particleboard whatsoever. Every piece of the interior is solid oak or oak plywood. The design and build-out is solid, warm, and completely dry. Those were better days in so many ways!
Very good point. At the end of the day they all camp essentially the same and the layouts are all essentially the same variations. I think the money saved on buying a nice clean well cared for unit will buy a lot of fuel to make up for the poor gas mileage, and will more than cover any repairs that one would likely encounter. Also, the older units are cooler looking
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Old 11-30-2022, 03:52 PM   #46
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Default BMPro fail

Over the hot Summer and Fall season, I have left the main switch on and the cabin roof fan on "auto-cool" to keep the temps down while stationary. The solar panel keeps the batteries topped off.

In Winter, the cooling isn't needed, and the shorter days and lower sun angle don't over-charge the batteries, so I turned off the switch.

The other day, I turned it back on to see whats going on with voltages via the BMPro, and noticed it would not boot up anymore. It showed its startup screen for about 5 sec, then turned off again for 20 or so seconds. Tried to reset which did not do anything. Called Thor and they asked for pictures and my address. Hope I'll get a new one for Christmas!

Update: Thor sent out a new BMPRO quickly and I should get it tomorrow. Great service. I sort of figured out what happened - the little battery in the 7" android tablet that serves as the screen went dead. This is because I turned OFF the main switch for a few weeks after leaving it ON for the Summer and Fall. Not sure if leaving it on (and charging/100% full) for an extended time is what killed it. Also not sure what to do exactly to prevent that.

When the coach power is turned off, the tablet is supposed to shut down completely. When turning it on it "boots" in the usual Android fashion, taking about a minute or so. Either there are/were parasitic drains that over-discharged the battery, and/or the tablet failed to shut down completely.

I will try to source a replacement battery if it is indeed dead... perhaps worth having a backup unit just in case.
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Old 12-01-2022, 01:35 AM   #47
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I sort of figured out what happened - the little battery in the 7" android tablet that serves as the screen went dead.
Yes, the lithium batteries in most tablets are a real gotcha. One problem is that many of them can be damaged in freezing weather. In some of them it is possible to just remove the battery (if you can get the case open). However, a lot of them have "smart" batteries and the unit won't boot if the battery isn't present.

I am using a Fire Tablet as the main touch screen for Home Assistant in our new van. I had our upfitter design its flush wall-mounting so as to be easily removable, so I can take it indoors during winterization.
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Old 12-01-2022, 03:18 AM   #48
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Thanks for chiming in! Agreed about finicky lithium batteries, but freezing is less of an issue here... I know the capacity goes down as temps drop, but what affects the lifespan more over here is frequent heat.

The way the BMPro works is that it runs off the internal tablet battery which is always being charged as long as the main switch is on. Once the main switch is turned off the tablet gets some "off" signal which shuts it down completely. I think for some reason this glitched and the tablet (which is set to never sleep) stayed awake and drained the battery.

I am going to monitor the tablet battery voltage with the switch off... to see if the battery has a large self-discharge rate (or some parasitic draw is present). It's possible that the battery is in bad shape as I left the switch on pretty much all year so it stays fully charged at 100% which is not ideal for Li batteries.

Taking the unit out of the camper and storing it inside is a good idea too, although I'd probably forget to put it back in when leaving on a trip.
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Old 12-01-2022, 05:47 PM   #49
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Update: So last night the tablet battery was at 90%. I turned off the main switch (which should shut down the tablet). This morning (16hrs later) I turn on the switch and it is at 8%.

So, either the tablet doesn't shut down anymore, or the battery is completely shot and self-discharges in a a few hours.

Next test: Remove the unit from the camper, shut down the tablet, and see if its battery self-discharges or not.
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Old 12-02-2022, 06:50 PM   #50
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Next test: Remove the unit from the camper, shut down the tablet, and see if its battery self-discharges or not.
Yup confirmed, the tablet battery is no good, it was down to 1% this morning after being disconnected all night. The new unit has no noticeable change in battery percentage.

I guess I can buy another battery and see if that makes it work again. Cheap ones are around $15 although difficult to find one with exactly the same dimensions.

So... assuming that keeping the main switch ON all the time keeps the tablet charged to 100% which isn't good for the battery. Only way to prevent that though would be to disconnect the unit, which is a bit awkward. Or maybe add a switch somewhere.

I wish there was a way to reduce the max charge to 85% like some of the newer phones can do.
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Old 12-06-2022, 12:30 AM   #51
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Subscribing to this thread. I just purchased a 2023 Thor Scope 18M, and will be picking it up this week!
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Old 12-07-2022, 07:20 PM   #52
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Subscribing to this thread. I just purchased a 2023 Thor Scope 18M, and will be picking it up this week!
Thank you for stopping by, always good to have fellow Scope/Rize owners along for the ride! May I ask what you paid? A year ago they were in the 90s, I wonder if inflation has pushed that up or more availability relaxed it a bit?

Def let us know if you have questions or run into any issues.
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Old 12-21-2022, 10:17 PM   #53
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Yup confirmed, the tablet battery is no good, it was down to 1% this morning after being disconnected all night. The new unit has no noticeable change in battery percentage.

I guess I can buy another battery and see if that makes it work again. Cheap ones are around $15 although difficult to find one with exactly the same dimensions.

So... assuming that keeping the main switch ON all the time keeps the tablet charged to 100% which isn't good for the battery. Only way to prevent that though would be to disconnect the unit, which is a bit awkward. Or maybe add a switch somewhere.

I wish there was a way to reduce the max charge to 85% like some of the newer phones can do.
I purchased a new (generic, similar size) 2500mAh battery, soldered it in, and it's working great (as in, holding the charge).
Still not a perfect solution as I plan to mostly keep the main switch on, which means the BMPro tablet will constantly (over)charge and eventually die again. I could just disconnect it, but obviously it's nice to monitor voltages and stuff even when the camper is parked.
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