ptz

joined 2 years ago
[–] ptz@dubvee.org 1 points 8 minutes ago* (last edited 2 minutes ago)

I've got two sets of solar panels and two different use-cases.

The panels my power banks use are all regulated 5v output (3x 6 watts, one 20W, and one 12W). I take one or more of those backpacking.

The 12V->USB PD adapter I'm looking for is to hook into my 12V 50 or 100 watt panel I take camping (which one i take depends how many people plan to charge from it). In addition to being a charging point for my laptop, it would also charge my power banks much quicker since they support QC/PD charging at higher voltages than the 5V panels produce.

But yeah, PV panels "open circuit" voltage is closer to 17-21 volts, but once you put a load on them, they're closer to 12-14.

[–] ptz@dubvee.org 2 points 16 minutes ago (1 children)

That's exactly what I do.

I've got a 2-port 100W GaN PD travel charger that I use for pretty much everything. When I travel, my laptop and phone are hooked into that, and the laptop acts as a charging hub for all of the smaller stuff.

[–] ptz@dubvee.org 1 points 17 minutes ago* (last edited 13 minutes ago)

Something like that, but closer to 45 to 65 watts and capable of 20v. There's one I saw a while back (can't find it now), but it's up to 100W PD and uses MC4 connectors straight to the panel. It was...expensive.

This is what I'm currently looking at (and it lists the voltages unlike the other ones that came up in search results). Only problem with this one is reviews say it defaults to "off" and you have to press the button to turn it on. Not ideal when it's going to be hooked to a PV panel.

[–] ptz@dubvee.org 4 points 1 hour ago* (last edited 1 hour ago) (4 children)

Looks like revision 2 of the PD spec requires all of those voltages, but in revision 1 it doesn't require 20v. And if they're not listing the voltages, they're prob not listing the PD spec revision it adheres to.

RavPower was my jam before they got booted from Amazon, but yeah, I stick to Ankler for the most part (unless I just need a dumb power bank to dump solar into that'll charge my better power banks - e.g. the 50,000 mAh behemoth I've got charging outside right now).

The reason I had to stray here is because I'm looking for a 12v -> USB PD adapter I can hook to a 12V solar panel. Not the "cigarette lighter" kind, but the kind you hard wire. No-name is about all you can really buy unless I want to crack open an Ankler or fuss with a cigarette lighter-style adapter (those are a PITA sometimes lol).

[–] ptz@dubvee.org 22 points 1 hour ago

Yeah, I get the "SEO" aspect of it, but they could at least include the actual specs somewhere.

[–] ptz@dubvee.org 5 points 1 hour ago* (last edited 1 hour ago) (3 children)

Should be, but not all of them support 20V. I'm less concerned with the wattage (I usually buy a minimum of 20W) since my laptop is designed for 45W but is smart enough to throttle and not charge the battery if supplied with less. I've tested it down to 20W (which the BIOS warned me about) and it works about the same as when it's in "Battery saver" mode. However, if I put it to sleep or power it down, it'll charge from 20W just fine.

 

Instead of the sane approach of specifying 5, 9, 12, 15, and/or 20 volts and the amperages, products insist on listing every model of device in existence instead.

Most will do 12V, but I always want to make sure it'll power my laptop (20V) as well.

A big thank you to reviewers who post images of the actual products where it shows the relevant info in one short line on the labels:

e.g. PD Output: 5V=3A, 9V=3A, 12V=3A, 15V=3A, 20V=3A

[–] ptz@dubvee.org 9 points 3 hours ago* (last edited 2 hours ago)

Will the real suckers and losers, please stand up?

Or at least would the real suckers and losers please shut up? They're always the loudest and dumbest in any space, and it's as if they stopped talking for even a second, they might actually have a critical thought (and that terrifies them).

[–] ptz@dubvee.org 2 points 4 hours ago

Yep. It's for an outdoor weather node on a metal pole, so damage would be fairly minimal if it had a bad day. It's also only charging at like 200 mAh (max) since it's got only a small 1W solar panel hooked to the charge controller. The only other concern would be summertime temperature, but I worry about that regardless of the cell.

[–] ptz@dubvee.org 1 points 4 hours ago (1 children)

Yeah, and my newer powerbanks all do PowerDelivery for 5, 9, 12, and 20 V.

I'm assuming watt-hours would be universal for them all (watts are watts, as the saying goes).

[–] ptz@dubvee.org 3 points 4 hours ago* (last edited 4 hours ago) (1 children)

I may be re-thinking my morals for things like that here soon. My legitimate career relies heavily on federal grant money, and my skills aren't rare enough to hope France will adopt me. Maybe I'll start a meme coin or something lol.

[–] ptz@dubvee.org 1 points 4 hours ago (2 children)

That's true, but this one came from a known (local) vendor. I took it back, and they were happy to refund it. Since they were gonna toss it, I asked if I could keep it (it works well enough to power an ESP32).

[–] ptz@dubvee.org 5 points 5 hours ago (3 children)

I've thought about selling out my morals, but realized I could never live with myself.

 

A federal judge struck down Arkansas' Social Media Safety Act, ruling it unconstitutional for broadly restricting both adult and minor speech and imposing vague requirements on platforms. Engadget reports:

In a ruling (PDF), Judge Timothy Brooks said that the law, known as Act 689 (PDF), was overly broad. "Act 689 is a content-based restriction on speech, and it is not targeted to address the harms the State has identified," Brooks wrote in his decision. "Arkansas takes a hatchet to adults' and minors' protected speech alike though the Constitution demands it use a scalpel." Brooks also highlighted the "unconstitutionally vague" applicability of the law, which seemingly created obligations for some online services, but may have exempted services which had the "predominant or exclusive function [of]... direct messaging" like Snapchat.

"The court confirms what we have been arguing from the start: laws restricting access to protected speech violate the First Amendment," NetChoice's Chris Marchese said in a statement. "This ruling protects Americans from having to hand over their IDs or biometric data just to access constitutionally protected speech online." It's not clear if state officials in Arkansas will appeal the ruling. "I respect the court's decision, and we are evaluating our options," Arkansas Attorney general Tim Griffin said in a statement.

 

Tech manufacturers continue misleading consumers with impressive-sounding but less useful specs like milliamp-hours and megahertz, while hiding the one measurement that matters most: watts. The Verge argues that the watt provides the clearest picture of a device's true capabilities by showing how much power courses through chips and how quickly batteries drain. With elementary math, consumers could easily calculate battery life by dividing watt-hours by power consumption. The Verge:

The Steam Deck gaming handheld is my go-to example of how handy watts can be. With a 15-watt maximum processor wattage and up to 9 watts of overhead for other components, a strenuous game drains its 49Wh battery in roughly two hours flat. My eight-year-old can do that math: 15 plus 9 is 24, and 24 times 2 is 48. You can fit two hour-long 24-watt sessions into 48Wh, and because you have 49Wh, you're almost sure to get it.

With the least strenuous games, I'll sometimes see my Steam Deck draining the battery at a speed of just 6 watts -- which means I can get eight hours of gameplay because 6 watts times 8 hours is 48Wh, with 1Wh remaining in the 49Wh battery.

Unlike megahertz, wattage also indicates sustained performance capability, revealing whether a processor can maintain high speeds or will throttle due to thermal constraints. Watts is also already familiar to consumers through light bulbs and power bills, but manufacturers persist with less transparent metrics that make direct comparisons difficult.

 

Reporting Highlights

  • Unexpected Role: Flight attendants were told they would fly rock bands, sports teams and sun-seekers. Then Global Crossing Airlines started expanding into federal deportation flights.
  • Human Struggles: Some flight attendants said they ignored orders not to interact with detainees. “I’d say ‘hola’ back,” said one flight attendant. “We’re not jerks.”
  • Safety Concerns: Flight attendants received training in how to evacuate passengers but said they weren’t told how to usher out detainees whose hands and legs were bound by shackles.
 

But I guess that's what alcohol is for.

 

Not my project - found this courtesy of Hack-a-Day.

This free and open source software tool is designed to make it easy for individuals to keep track of both the routine maintenance needs of their vehicles, as well as keep track of any previous or upcoming repairs and upgrades.

Demo here: https://demo.lubelogger.com/Login/Index

User/pass: test/1234

 

It’s the latest sign that Republican leadership at the FTC is not pushing back against President Donald Trump’s unprecedented attempts to assert control over the historically independent agency.

Staff at the Federal Trade Commission have been instructed to no longer refer to the agency as “independent” in complaints, according to an email obtained by The Verge.

“Moving forward, when describing the Commission as the Plaintiff in a Complaint, please track the below edit,” Bureau of Consumer Protection Director Christopher Mufarrige said in a March 21st email viewed by The Verge. The email was sent to the bureau’s associate and regional directors, and copied to deputy directors of the unit. “The FTC is an independent agency of the United States Government created by the FTC Act.”

 

Inspired by the ZZ Stop post earlier.

Edit: Seems I've inspired a trend, and also, I've had the lyrics wrong for decades.

 
 

I mean, at least get your news from the radio in Grand Theft Auto /s

 
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submitted 1 week ago* (last edited 1 week ago) by ptz@dubvee.org to c/news@lemmy.world
 

Boeing is seeking to withdraw an earlier agreement to plead guilty in a long-running criminal case that blamed the company for deceiving regulators before two deadly crashes of 737 MAX jets, WSJ is reporting, citing people familiar with the matter. From the report:

The aerospace giant is seeking more lenient treatment from the Justice Department, which under the Trump administration is reviewing numerous pending criminal cases that haven't yet gone to trial or been approved by courts. Boeing nearly sealed its fate last year, agreeing in July to plead guilty to defrauding the Federal Aviation Administration. But a federal judge in Texas rejected the proposed deal in December, pushing the resolution beyond the Biden administration.

Now Boeing stands to benefit from fresh eyes at Trump's Justice Department, which is inclined to at least modify parts of the agreement, some of the people said. Allowing Boeing to rescind its plea agreement, or lightening the company's punishment, would mark one of the most prominent examples of the Trump administration's lighter-touch approach to some white-collar enforcement. There were 346 people killed in the two 737 MAX crashes, in 2018 and 2019. The two sides are still negotiating how to propose changes to the deal, expected by April 11, to U.S. District Judge Reed O'Connor, who oversees the case. One possible change under discussion: whether Boeing can forgo hiring an outside monitor to ensure its compliance with the law, the people said.

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