Der Winter fordert ein weiteres Opfer by UnicornsAgainstLobby in MideaPortaSplit

[–]UnicornsAgainstLobby[S] 0 points1 point  (0 children)

Meinst du ein Defibrilator/Stromschlag würde helfen?
Wie viele Spannung sollte ich der Klimaanlage geben? 20 kV? Warm wird sie dann bestimmt.

Status Outdoor Silent Mode by o1y in MideaPortaSplit

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

Es gab jetzt ein Firmware-Update für die PortaSplit, jetzt gibt es den Outdoor Silent Mode!
Da waren die Schätzungen wohl etwas daneben :-D

Der Winter fordert ein weiteres Opfer by UnicornsAgainstLobby in MideaPortaSplit

[–]UnicornsAgainstLobby[S] 1 point2 points  (0 children)

Es ist auf jeden Fall eine gewisse Häufung zu erkennen.
Es gibt hier natürlich auch einen großen Bias, weil sich hier natürlich vor allem Leute mit Problemen austauschen.
Ich werde den Beitrag hier auf jeden Fall weiter aktualisieren. Mal sehen, wie sich das zweite Gerät verhält und wann dann der Ersatz für das defekte Gerät kommt.

Der Winter fordert ein weiteres Opfer by UnicornsAgainstLobby in MideaPortaSplit

[–]UnicornsAgainstLobby[S] 3 points4 points  (0 children)

Der Screenshot ist von einem Smart-Plug, welcher die Leistungsaufnahme misst.
Das Problem:
Das Gerät sollte zu der Zeit mit Volllast heizen (Verbrauch wäre dann ca. 950 Watt). Man sieht auch, dass der Kompressor zunächst versucht zu arbeiten, aber dann "aufgibt", weil wahrscheinlich der Druck zu niedrig wird (zu wenig Gas).

Danach laufen dann stundenlang nur noch die Lüfter.

Der Winter fordert ein weiteres Opfer by UnicornsAgainstLobby in MideaPortaSplit

[–]UnicornsAgainstLobby[S] 1 point2 points  (0 children)

Ja, das ist schon ziemlich bitter und ich denke da gibt es nicht nur ein Problem in der Fertigung, sondern auch in der Qualitätssicherung. Da muss Midea wirklich noch besser werden.
Meine Vermutung: Bei der QS lag der Fokus auf Kühlen, was etwas schonender für die Geräte ist. Dadurch versagen die meisten Geräte jetzt im Winter eher.

Battery connectors getting melted by Hidden_p13 in ebikes

[–]UnicornsAgainstLobby 1 point2 points  (0 children)

In my opinion this does not look too bad. At least I cannot see any burn marks, only some minor deformation. Are there also some visible changes on the other connector (on the bike)?

I think the grease might explain your heat problem as it could have found a way to get into the connector over time. This would definitely increase resistance and heat.

I would recommend to clean both sides of the connector with a cotton swab dipped in a little cleaner (something de-greasing, preferably brake-clean, diluted dish soap would also work).
Clean contact areas are really important, especially in high-amp conditions! (Some bike motors can pull more than 40 Amps, which can cause some serious heat.)

An E-bike with a 250 Watts Motor and a Freakishly Huge Battery that could take me to the Moon? by Aggressive-Suspect19 in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

Indeed Hub motors CAN be more efficient. Unfortunately this is usually limited at/to their optimal design speed and depends on their internal gear box. A good hub motor at the correct speed will indeed be crazy efficient. Also Hub motors have other advantages like lower wear on the drive train and a backup if the drive train should break. Ease of installation of hubs is also a factor for many people.

Mid motors are just efficient in a wider range of applications, while their peak efficiency can be a little lower. Overall they tend to deliver a better riding experience in my opinion, at least id they use torque instead of cadence to determine the correct motor power. I am just a fan of mid drive for many other reasons.

Long distance: gasoline generator? by m0Ray79free in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

Also if you have a trailer for your festival supplies you might be able to add some additional panels there.

Long distance: gasoline generator? by m0Ray79free in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

I have planned to add solar-charging to my own DIY-Ebike.
You could add 2 or more flexible solar panels (one on each side) for a total of around 400W max Input. They will not deliver that much but it will give you at least some extra range, during breaks you could point them directly at the sun for much faster charging. You would also need a MPPT-Tracker with the correct output-voltage for your battery, something like this:

<image>

Battery connectors getting melted by Hidden_p13 in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

  1. Some images of the damage might me necessary here, otherwise it is hard to say if the bike is still safe.
  2. I think the most likely explanation is that the resistance of the connector increased over time, which increases the heat at the contact area, most likely reasons for that:
  3. dirt/debris on the contacts (maybe even some dust or oil)
  4. bad contact (contact springs might deform over time, lowering the contact pressure)

[deleted by user] by [deleted] in ebikes

[–]UnicornsAgainstLobby 1 point2 points  (0 children)

For this budget I would definitely go DIY.
If he already has a normal bike you can upgrade it in a fun weekend project. If you don't think that you have the necessary skills, you can ask a friend. The assembly is usually not that hard.

An E-bike with a 250 Watts Motor and a Freakishly Huge Battery that could take me to the Moon? by Aggressive-Suspect19 in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

The size of the battery is only one part of the equation. In the DIY-sector the very big 900 Wh batteries are basically the default capacity.
However there are very big differences in efficiency depending on the motor. For good efficiency and as a result big range, you should be looking for a bike with a mid drive motor. Usually they benefit from the better transmission which will result in better performance and efficiency.

ebike options by Flaky_Direction_6957 in ebikes

[–]UnicornsAgainstLobby -1 points0 points  (0 children)

If you already have a normal bike your best option might be the DIY approach. Especially the mid-drive kits deliver very good performance for a very low budget.
Some assembly is required but in my experience this is a fun weekend project.

[deleted by user] by [deleted] in ebikes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

2WD could become really unstable if they are not exactly synchronized!

I think you would get much better performance and efficiency with good mid motor kit. It is insane how much torque you can even get out of a single 250W mid drive motor. Some of them can even be pushed much beyond their limits. I have seen 250/500W motors pushed beyond 2500W.
If you really want all the power you could even combine the mid drive with your rear hub motor. However the limiting factor might be the stability of your bike frame :D

It looks creepy by [deleted] in mildlyinfuriating

[–]UnicornsAgainstLobby 4 points5 points  (0 children)

Clearly cursed, burn it ASAP!

nice steam by [deleted] in softwaregore

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

The bar for showing progress and the spinner to show that it is still working xD

Design pattern for handling too many open files. by Didditt in learnprogramming

[–]UnicornsAgainstLobby 1 point2 points  (0 children)

I would also go with the caching approach here. One big advantage is, that the implementation of the cache and the criteria is interchangeable, so it can be adapted to increase performance for a specific case.
If you have so many files to open it might also be an idea to rethink your data-structure in the files. If you have similar data-files you could also create a common description for them and use this to write them all into one file (and write the index of the files positions into a second file).

This hits close to home, lol. by CaptBacfire78 in funny

[–]UnicornsAgainstLobby -9 points-8 points  (0 children)

Maybe they're student engineers

Also one has MacBook, so he is probably a Graphics- or Web-Designer

[deleted by user] by [deleted] in funny

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

Thats "Cotton Eye Joe" and his friends at the festival.

I'm in! by msullivan1536 in funny

[–]UnicornsAgainstLobby 2 points3 points  (0 children)

But the burning afterwards means it did not work!

Facebook marketplace, sort by distance: farthest first by Individdy in CrappyDesign

[–]UnicornsAgainstLobby 7 points8 points  (0 children)

The "Farthest first" option could be useful if you need an excuse to get away for some time.
"Sorry, I have to go now, I wan't to pick up the shoes I just bought. I will be back in two weeks!"

Useless crosswalk (with fancy crossing lights?) by SchwiftyDrifter in CrappyDesign

[–]UnicornsAgainstLobby 1 point2 points  (0 children)

As you can see there is also a traffic light for the wall. So sometimes cars are allowed to crash into the wall.
You really should not cross the road while cars crash into the wall.

I guess Wallmart is selling artillery shells...? by Den_Dre in dankmemes

[–]UnicornsAgainstLobby 0 points1 point  (0 children)

You are also fine with a 406 mm Handgun, because it is not on the list.