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Search took 0.00 seconds. Search: Posts Made By: rickst29
Forum: Electrical | Charging, Systems, Solar and Generators 11-09-2020, 07:29 PM
Replies: 27
Views: 4,820
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
Views: 4,820
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
Views: 4,820
Posted By rickst29
Smile 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
Views: 4,820
Posted By rickst29
Lightbulb 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
Views: 4,820
Posted By rickst29
Lightbulb 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: Electrical | Charging, Systems, Solar and Generators 08-01-2020, 04:43 PM
Replies: 27
Views: 4,820
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, 04:38 AM
Replies: 27
Views: 4,820
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
Views: 4,820
Posted By rickst29
Talking 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, 06:04 PM
Replies: 27
Views: 4,820
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
Views: 4,820
Posted By rickst29
Lightbulb 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
Views: 4,820
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, 02:43 PM
Replies: 27
Views: 4,820
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
Views: 4,820
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, 03:47 AM
Replies: 27
Views: 4,820
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...
Forum: Electrical | Charging, Systems, Solar and Generators 07-31-2020, 03:41 AM
Replies: 27
Views: 4,820
Posted By rickst29
Chassis Battery *versus* Lithium Home Battery ? Must start an Onan Generator

I will soon be upgrading a friend's Class B (a Leisure Travel "Free Flight", vintage 2011. Replacing AGM with Lithium for the living "coach area". Parts:

A single BattleBorn 100Ah battery;
A...
Showing results 1 to 15 of 15

 
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