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Old 06-17-2017, 05:04 PM   #181
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I think you are missing the point being made. If you are using enough power to be marginal on 1600ah of lithium batteries, whatever solar you are able to get is going to be a very small contribution, that is also unreliable.

Where is all that power going? At some point you might be way better off to have generator to run at peak use times.
My point is that doubling the solar will double the contribution no matter how big or small.

As to your point that 1600AH might not be enough depending on power usage, I get it and as I said I will know more when I actually start using the system.
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Old 06-17-2017, 06:01 PM   #182
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I'm thinking seriously about making a battery switch management device for the RT. 3D print a panel that overlays on top of the battery switches and monitors the RT LED and has its own LED. Maybe using spring push pull solenoids to actuate the switches.

It will start up the batteries by flipping the reset and on/off buttons, measuring the volts, and then turning batteries on and off automatically as required and having one LED display of battery levels and tracking and logging how long it takes each battery to hit the 20% level. Raspberry Pi should be able to do this pretty easily with a small camera reading the OEM voltage display.

For charging it could do something similar I suppose, so that one battery is being charged at a time to alleviate the parasitic drag of having all batteries on while charging.

Could be useful and fun to make.
Personally, I would not go this route, it would add complexity. It could be difficult and unreliable to add UI hardware shell over a not well engineered system. You could be better off to redo RT system with good UI from the get go.

I was in similar position a few year ago except I was starting with a white sheet of paper and ended up with good enough results. A key part of the project, related to Booster’s question "where is all this power going?", is balance sheet. I understand you want more, but why? What are your estimated loads.

I always enjoy watching this part from The Office but please take it with a smile, cheers and good luck.

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Old 06-17-2017, 06:25 PM   #183
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assuming everything works-and i'm assuming your system WILL work because most do-some don't and are headaches-but most do-i think you will find that it won't work to your expectations.

1600 amp hours requires 1600 amp hours in.

But good luck to you.
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Old 06-17-2017, 07:07 PM   #184
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I think you are missing the point being made. If you are using enough power to be marginal on 1600ah of lithium batteries, whatever solar you are able to get is going to be a very small contribution, that is also unreliable.

Where is all that power going? At some point you might be way better off to have generator to run at peak use times.

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Old 06-17-2017, 07:11 PM   #185
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.

Full timing in a B is not easy, unless you are a minimalist.

Most of the nomads have the luxury of chasing the forever 70F weather.

If you plan to stay in the boonies or any one place for long,
the B might not be the right vehicle for you.


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Old 06-17-2017, 07:50 PM   #186
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Originally Posted by WingedRyno View Post
I'm thinking seriously about making a battery switch management device for the RT. 3D print a panel that overlays on top of the battery switches and monitors the RT LED and has its own LED. Maybe using spring push pull solenoids to actuate the switches.

It will start up the batteries by flipping the reset and on/off buttons, measuring the volts, and then turning batteries on and off automatically as required and having one LED display of battery levels and tracking and logging how long it takes each battery to hit the 20% level. Raspberry Pi should be able to do this pretty easily with a small camera reading the OEM voltage display.

For charging it could do something similar I suppose, so that one battery is being charged at a time to alleviate the parasitic drag of having all batteries on while charging.

Could be useful and fun to make.
Why not have the first B van with a butler robot handling all those mundane chores for you

robot.jpg

21st Century Robot

In addition to button pushing it could empty the tanks, trek to the camp store to get ice cream or firewood, mix margaritas etc.
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Old 06-17-2017, 08:23 PM   #187
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Why not have the first B van with a butler robot handling all those mundane chores for you

Attachment 4310

21st Century Robot

In addition to button pushing it could empty the tanks, trek to the camp store to get ice cream or firewood, mix margaritas etc.
Or maybe buy an RV without so many supposed flaws and shortcomings you have to fix.
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Old 06-17-2017, 09:12 PM   #188
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Originally Posted by markopolo View Post
Why not have the first B van with a butler robot handling all those mundane chores for you

Attachment 4310

21st Century Robot

In addition to button pushing it could empty the tanks, trek to the camp store to get ice cream or firewood, mix margaritas etc.
It's on my list!
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Old 06-17-2017, 09:12 PM   #189
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Or maybe buy an RV without so many supposed flaws and shortcomings you have to fix.
God, I hope you're right that it turns out to be an RV and not a pool table that is delivered. Fingers crossed!
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Old 07-25-2017, 09:56 PM   #190
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Picking up our rig tomorrow morning. They said a July build and they hit that target no problem without any pestering from us.

Now to make sure I'm ready to inspect it to make sure everything is working!
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