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Showing results 1 to 25 of 28
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Posts Made By:
rickst29
Forum:
Electrical | Charging, Systems, Solar and Generators
11-09-2020, 07:29 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
You should see no almost no difference, with...
You should see no almost no difference, with MPPT, until the LFP battery string approaches 13.8V.
At that point, even LFP will begin to reduce it's accepted current, because the pushing Voltage...
Forum:
Electrical | Charging, Systems, Solar and Generators
11-09-2020, 04:04 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Yes, the Tracer-BN models also offer an output...
Yes, the Tracer-BN models also offer an output charging current limit. Let me also SWAG the MPPT advantage for you with just one panel at 19V - it's smaller than people with SLA or Sealed batteries...
Forum:
Electrical | Charging, Systems, Solar and Generators
11-09-2020, 02:31 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Yes, you limit at the MPPT controller.
I got an email message WRT your new post. :D Yes, you limit at the Solar Controller output maximum current value in MPPT programming. (Not the input value, that was a typo, and I don't know of any...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-28-2020, 04:25 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
That project is done - and I did change something.
The Power Converter and Solar Controller are now connected to only the Lithium house batteries. For the case of a heavily discharged Chevy "Chassis" we now have an emergency interconnect switch...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-28-2020, 04:12 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
There is a 1-relay version, two 2-relay versions.
For better or worse, this post is just as long and complex as my previous one :sad:. But when you draw it, you will see that there are no concerns with backflow, because the panels and boost...
Forum:
General Discussion Forum
08-20-2020, 04:34 PM
Replies:
25
Direct Replacement for the Dometic RM2453R
Views:
8,403
Posted By
rickst29
The Overall Dimensions on the RM2453 are: ...
The Overall Dimensions on the RM2453 are:
30-5/32 (h) 21-7/8 (w) and 22-22/32 (d)
The 'Enclosure' dimensions are:
29-3/4 (h) 20-1/2 (w) 21-1/2 (d)
The closest of the CRX models is the...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-02-2020, 04:19 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
I think that I see it now .... ( EDITED!!! )
Greatly Edited: Per the following two posts, I think that you and I misunderstood Booster, he doesn't want that change made on either the "charged voltage setting" or "float" setting
With AGM, you...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 04:57 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
Nope. No Display from the PD Converter. The Solar...
Nope. No Display from the PD Converter. The Solar Controller(s) display accumulated Kwh for the Solar, but my concern is total into and out from the house battery from all sources (all together)....
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 04:43 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
And you've got a great setup, thanks for the diagram!
The problem for this RV will be the engine battery in winter. I just took a second look, and it maybe can't be kept 'good' by Solar alone, because her driveway parking spot has the sun blocked in...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 03:49 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
I'm not sure if there was a question in there ....
If you meant were asking "what is this thing, he was brilliant but didn't explain" then here is my answer. If not, please advise me to delete this (it's largely irrelevant):
It looks a lot like a...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 02:56 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
Yep!
I strongly agree with everything you just said. But, if I add two more coulomb counters into my RV, my wife will take one look at it and say, "Rick, you've got to stop! It looks like a nuclear power...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 02:47 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
They act independently - but they *DO* see each other.
I presuming 'MAGNUM CHARGER' to be the plugged in Converter, right?
They are 'independent' in decision-making, because they are not interconnected in a master/slave relationship. But they do...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 02:20 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
It was from a related example, not from a Class-B RV.
Good question, because it's not directly applicable to Class B. I used the example to describe why "arguments" between the on-board converter and the Solar Controller are mostly harmless, in the...
Forum:
Electrical | Charging, Systems, Solar and Generators
08-01-2020, 04:38 AM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Solar to the chassis battry is now my backup plan ....
Thank you , great post.
There's a ton of words in my explanation, but it's only 3 Relays. (And they're very reliable these days). If I have an ignition-switched lead in the wiring compartment,...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 08:22 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
I hear you .... and have a somewhat weird solution.
But she's also got Solar, and an Onboard Generator to handle the fridge while driving.
I can definitely do that. Or maybe - I can set up a pair of high-current Relays, which swap the I/O leads on...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 06:33 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
Thank you, excellent points.
Surprisingly, (or anyway - it sure surprised ME) a pair of cheaper EPEVER controllers (BN series) scanning the bus independently, takes only a little longer to reach "float" in both controllers, than...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 06:04 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Dang, I wish I'd seen your post sooner.
<SNIP>....
</SNIP>
That would have been excellent I wish I had 'd found your suggestion earlier. Instead I have the Renogy DC->DC already coming, while this machine does exactly what I needed - for...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 05:44 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Charging the Chevy "chassis" battery.
And so, here is my idea:
Run the Renogy DC-->DC battery charger backwards. The charging profile will be SLA (or maybe AGM, if that's what she now has up front), and the source will be...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 05:29 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
My version is an aftermarket mod called the...
My version is an aftermarket mod called the "Wildkat". I have one in my own Trailer, which I tested with an LFP battery and variable small loads on a test floor (my tiled living room ;)) before...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 05:00 PM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
Taking a hint from "pure solar" dual controller setups on Trailers
We can get a hint from Solar setups which have been "split" into multiple controllers sharing one bank of batteries, in order to figure out what will happen here. On Internet I have two...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 02:43 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
If BIRD remains present...
while the Converter is plugged into shore power, the converter will generate full power (about 14.6V) until the current falls to a very low level. I think that will cook the "Chevy" battery to death.
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 02:36 PM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Great Advice; responding with selective snips
Yes, if I remove the BIRD (strikethrough, because I'll be running it the Renogy backwarsds, as a reaplcement for the BIRD), then I need to assure that it is switched by the Chevy ignition, only...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 04:13 AM
Replies:
83
Solar panel controller
Views:
4,523
Posted By
rickst29
Yes, they will fall into float stage, if the battery and alternator run "hot".
Good Solar Controllers "sniff" the voltage of the "battery +" output circuit, relative to ground, very frequently. If the Alternator under the hood is trying to charge it's battery at high voltage,...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 03:53 AM
Replies:
65
Lithium and winter storage
Views:
11,251
Posted By
rickst29
You won't want to do either plug-in charging OR...
You won't want to do either plug-in charging OR solar charging, if the BMS isn't smart enough to reject all that charge current in cold weather. In the "cold weather" batteries, incoming power is...
Forum:
Electrical | Charging, Systems, Solar and Generators
07-31-2020, 03:47 AM
Replies:
27
Chassis Battery *versus* Home Battery ? Must start an Onan Gen.
Views:
4,718
Posted By
rickst29
Her own wiring might not have that inter-connect yet...
Because she thinks that the used RV was built in 2010, it might not ha e this wire. The addition of the inter-linking wire "Battery Boost Wire" was done from September 2011. That's update is noted in...
Showing results 1 to 25 of 28
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