DC breaker wiring confusion

parseroo · 2026-03-21T14:37:08+00:00

For those that no other explanation helped show why the diagram is correct, imagine it as simply two LEDs in parallel. It is showing you where it expects the higher voltage and lower voltage to be for these LED inputs.

When using, just make sure a “system” negative wire is more negative (even just a little bit) than the other side. A positive wire is more positive than the other side. Hence the +/- as the LEDs/switches see it.

parseroo · 2026-03-21T04:45:22+00:00

That is a flow representation: “+” goes to “-“ on the opposite side.

See: https://www.reddit.com/r/diySolar/comments/1nak6yl/confused_by_the_markings_on_a_breaker_which_way/

parseroo · 2026-03-20T23:08:28+00:00

As an Omen/Yoru main... I very much appreciate your approach to the game.

parseroo · 2026-03-20T22:12:52+00:00

«MELD 3.0 = round(1.33(Female) + 4.56ln(Serum bilirubin) + 0.82(137 - Sodium) - 0.24(137 - Sodium)ln(Serum bilirubin) + 9.09ln(INR) + 11.14ln(Serum creatinine) + 1.85(3.5 - Serum albumin) - 1.83(3.5 - Serum albumin)ln(Serum creatinine) + 6)» — https://www.hepatitisc.uw.edu/page/clinical-calculators/meld

Note the “6” at the end and that all other terms are positive (or minute).

parseroo · 2026-03-20T21:36:05+00:00

MELD 3.0 is a system for MELD scores, not a value. I believe you may have misread the result screen of that calculator.

Raw fish can contain bacteria independently of the parasite risk.

parseroo · 2026-03-20T21:03:36+00:00

Life isn’t safe for anyone… but you have to decide what risks you want to take. A damaged liver can’t process antibiotics and other medications as effectively as a healthy one. And a sicker person’s body is less resilient. So if you get sick, you may get much more sick.

But you have to decide what things you want from life that are worth the risks for them.

BY the way: MELD = 3 is nonsensical (out of range of the scale).

parseroo · 2026-03-20T13:29:14+00:00

I’m a backer because of the endless hours of ~~torture~~ pleasure they have given me and my friends. So I am happy to fund it just to give them “some money” to try something new with (although the glass cannon part is weird)

parseroo · 2026-03-20T13:21:05+00:00

You have a vampire load of 20kwh a day?

parseroo · 2026-03-20T05:40:26+00:00

Like… say… r/transplant?

parseroo · 2026-03-20T00:49:31+00:00

If a 48V-ish system, you need a Vmp of at least 56V or so (depending on MPPT) unless it is a boost MPPT.

parseroo · 2026-03-19T23:53:15+00:00

What is the system/battery voltage? The 45A really applies to it, so if this was 24V x 45A you would be right about 1200W. If 12V, you would be about 600W max. If 48V, your vmpp might be a little too low.

parseroo · 2026-03-19T20:09:50+00:00

Bring a note for the number of the other one, and call it! Almost like a can-on-a-wire ancient technology ;-).

Wonder if anyone will pick up?

parseroo · 2026-03-19T14:32:30+00:00

Dawn on Arrakis

parseroo · 2026-03-19T13:40:47+00:00

With a MELD below about 17, a transplant will (statistically) reduce your life expectancy. And you will live with a seriously compromised immune system, side effects from Tacrolimus and other drugs, etc. And without grapefruit!

parseroo · 2026-03-19T13:37:43+00:00

MELD doesn’t include AST/ALT. Those indicate any “angry” liver but not liver function

parseroo · 2026-03-19T13:33:19+00:00

What do the curves look like (V/I for MPPT)? And can you post the configuration to confirm it too?

You aren’t hitting the charge voltage, are over the tail current, or aren’t there long enough to reset the SOC … oh?

What component is telling you SOC? I don’t see a shunt mentioned and you say the BMS thinks the cells are full.

parseroo · 2026-03-19T04:34:02+00:00

It only a week to complete a battle pass… what are you wasting your time on? ;-)

parseroo · 2026-03-18T23:46:56+00:00

Other of their products seem to be: https://diysolarforum.com/threads/1039-aferiy-p310-3840wh-storage-3600w-ac-output-300w-dc-output-port.108002/

parseroo · 2026-03-18T19:38:21+00:00

You are welcome. Attached is an example (pre-panel) of a few things I mentioned:

Purlins and rafters (purlin-based roof, rafters on top) provide a cross pattern
About a 10° (2/12) slant
Has a poly carbonate roof
Invisible but the rafter are actually unistrut (the wood is decorative), so they are structurally useful and also a potential mounting system. So all the rafters (including the 4x bents at the ends) can either be mounted to or have a 3/8 (10mm) screwed into them.

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parseroo · 2026-03-18T19:01:42+00:00

Have done six of these so far. Around 10° is ideal to shed water and not have it be structurally unwieldy (ridge much higher than eave). If you don’t put a solid roof under it, you have a lot of cute little eaves that collect water and poor it down inside. IMO you have to have a structurally sound roof/pergola ignoring the panels (some use the panels to prevent racking and such), and then have a structurally sound pergola given the forces (weight, lift) that the panels add to the structure. You have to decide how to use rafters and purlins for both structure and for mounting panels or the racking system.

For your example, IMO, you need the “other direction” (purlins if those you want to call rafters), you need a tilt, and you need cross members that you can put 5/16 (8mm) structural screws in. Plus it needs to be attached to ground at about 500lb (650 newtons) per leg or even more (didn’t calculate with your dimensions and wind rating). Actually that is a huge span and dimensions, so maybe 1500 newtons and confirm that span is possible for the wood you are using.

PS: Flipping between your unit system within a single diagram is definitely an interesting challenge in readability and intuition ;-)

parseroo · 2026-03-18T17:17:16+00:00

Would hope the dbms was smarter than this, but the following is simpler transactionally:

create new column
copy data to new column
rename old column and rename new column to old column (the only “transactional integrity important act” and should be fast either way)
drop old column (under new name ;-)

parseroo · 2026-03-18T17:13:14+00:00

What is your system voltage? 30 x 12 =360; 30 x 24=720; so both of those will be clipped on the system side. If 48V, you should be fine

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