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Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More

4.3 4.3 out of 5 stars 1,060 ratings

$199.00 with 13 percent savings
List Price: $229.00

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Purchase options and add-ons

Connector Type USB Type C, Lightning
Brand Shargeek
Battery Capacity 25600 Milliamp Hours
Color Multicolor
Special Feature Portable, Portable Charger, Fast

About this item

  • 25600mAh Large Capacity: With a massive 25600mAh capacity, the Shargeek storm 2 power bank can provide iPhone(18W) up to 7 charges, MacBook(45W) up to 1.2 charges, iPad(30W) up to 2.5 charges, Go Pro/DSLR up to 15 charges, powering for days, but it only needs 90 minutes to be fully recharged.
  • Intelligence IPS Screen: The portable phone charger's on-display power management system visualizes the battery life, output distribution, running temp, and DC voltage adjustment in a clear, concise, and intuitive way, showing you the whole process of charging.
  • World's First See-Through Power Bank: The see-through and transparent design reveals STORM 2 portable battery's sophisticated internal structure including equipped battery, circuit layout, displaying itself from the inside-out.
  • 100W PD Fast Charging:The portable laptop charger is featured with a PD 100W USB C port, which enables it fast charges MacBook Pro 16" from 0% to 50% in 41 minutes with a 100W USB C cable(included) and charger, 2X faster than the original charger, saving more time for you.
  • Universal Compatibility: Equipped with 2*USB C port,1*USB port, and 1* adjustable DC port, the Shargeek laptop power bank is compatible with laptops, phones, switch, drones, cameras, and more devices with a DC port, meeting all your charging needs.
Make it a bundle
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Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More

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Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More
Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More
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Price-13% $199.00
List:$229.00
$109.99-25% $59.99
List:$79.99
$61.99$45.99-11% $159.99
Typical:$179.99
Delivery
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
Get it as soon as Friday, May 17
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Customer Ratings
Value for money
4.4
2.9
3.6
3.8
2.6
2.6
Charging power
3.9
3.4
4.0
4.2
2.9
Quality of material
4.7
4.2
4.0
For traveling
4.1
4.6
3.1
Battery life
4.1
4.1
3.1
Sold By
Shargeek
Haycide Official
SHARGE Official Store
ONBRILL WORLD
YarksDirect
SHARGE Official Store
capacity
25600 milliamp hours
20000 milliamp hours
10000 milliamp hours
27600 milliamp hours
10000 milliamp hours
24000 milliamp hours
connector type
USB Type C, Lightning
usb
USB Type C, USB Type A
USB Type C, USB Type A, Magnetic Wireless Charging
USB Type A, USB Type C
number of ports
4
3
1
3
2
3
compatible devices
Laptop, Tablet, Drone, Smartphone, Smartwatch
Smartphone
iPhone, Smartphone, Tablet, Camera
Laptop, Tablet, Smartphone, Drone, Speaker
iphone,phone
iPhone, Laptop, Smartwatch, Tablet
voltage
5 volts
5 volts
5 volts
3.6 volts
28 volts
weight
0.57 kilograms
225 grams
680 grams

From the brand


Product Description

STORM2

25600mAh Large Capacity & 100W Max Output

With a 25600mAh capacity and 100w max output, the Shargeek STORM2 power bank also has the following characteristics:

  • Featured with 2*USB C and 1*USB port, the 100W potable battery can charge three devices simultaneously.
  • With a 100W charger, it only takes 90 minutes from 0 to 100% to replenish energy efficiently, and get rid of the trouble of slow charging of large-capacity power banks.
  • The power bank is 25600mAh lower than 27027mAh so it can legally and safely be taken on board airplanes according to Federal transportation security rules.
  • Innovative can shape and All-aluminum heat dissipation structure lightweight design ensures the power bank easy to hold and more convenient to carry.

power bank

See-Through Transparent Power Bank

Featuring transparent case and IPS display screen, STORM2 power bank can clearly shows the complicated internal structure and charging process. With a main control button, it enables more settings to be achieved.

Apart from the beautiful appearance, STORM 2 also owns a complete, built-in protection system which includes Over-Voltage Protection, Short Circuit Protection, and Extreme Temperature Protection. Safety is always our first priority.

portable phone charger

Compatible Models

Laptops: Compatible with MacBook Pro 16''/13'', MacBook Air, Dell XPS 13 9380, Microsoft Surface Book 2 and more

Tablet: Compatible with iPad Pro/ iPad Air/ iPad mini and more

Phones: Compatible with iPhone 13/ 13 Pro/ 13 Pro Max/ 13 mini/ 12/ 12 Pro/ 12 Pro Max/ 11/ XR/ XS, Samsung S21, Google Pixel 4 and more

Others: Compatible with Switch, Airpods, Magsafe, Camera, Drone and more

battery pack

Question & Answer

Q: How to adjust the voltage of DC port?

A: 1、Long press to enter setting menu. 2、select the DC setting and the choose the voltage you needed. 3、Click toggle hold to confirm.

Q: What material is the transparent casing of the Shargeek storm 2 power bank?

A: The shell of the power bank is made of PC material, which is more drop-proof and safer.

Q: Why there exists difference of capacity information between the display screen and the case?

A: 93.5Wh is the rated capacity of the battery, which is the capacity in an ideal state (2.5V-4.2V each battery). The energy shown on the display screen is the actual discharge energy (3.0V-4.2V each battery). The battery will be depleted when the battery is running, so the capacity may be less than 93.5Wh, which is a normal phenomenon.

Q: Why does the battery amperage show as (-)?

A: The symbol of "-" on the battery current means the battery of this power bank is being charged. It will show "-" in the front of figures when you charge the power bank.

laptop charger
STORM2 STORM2 Slim
STORM2 STORM2 Slim
Customer Reviews
4.3 out of 5 stars
1,060
3.8 out of 5 stars
460
Price $199.00
Capacity 25600mAh 20000mAh
Max Output 100W 130W
Output Ports USB-A+USB-C*2+DC USB-A+USB-C
Input Ports USB-C1/DC USB-C
Weight 579g 450g
Dimension 5.94 x 2.32 x 1.81 inches 6.14 x 2.56 x 1.18 inches

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More

Shargeek Portable Charger, Storm 2 100W 25600mAh Laptop Power Bank, World's First See Through Battery Pack with IPS Screen, DC & 2 USB C & USB Ports for MacBook Pro/Dell XPS, iPad/iPhone 13 and More


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Product guides and documents

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
1,060 global ratings

Customers say

Customers like the customizable DC output of the power bank. They say it's versatile and can power older devices with non-standard wires. Customers also appreciate the fast charging and sleek design. They like the quality and information provided. However, some customers disagree on value, ability to charge, and performance.

AI-generated from the text of customer reviews

191 customers mention135 positive56 negative

Customers like the quality of the power bank. They say it's solid, reliable, and well built. It holds a charge well, and is a reliable choice for those in need of a high-capacity battery. It reports every wattage, voltage, current, and temperature available.

"...DC, 2 USB-C, and USB ports to cater to various devices. • Powerful 100W output, ideal for charging laptops and more.Cons:..." Read more

"...display, but the DC output makes this power bank really useful for powering electronics projects. That’s part of why I selected this one...." Read more

"...The build quality is impressive and I can see a well thought out design...." Read more

"...casing and was flinging all over the place, I noticed it started killing the entire battery. After a month, the screen stopped working...." Read more

118 customers mention84 positive34 negative

Customers like the charging speed of the power bank. They say it charges really fast, it's an excellent charger, and it provides charging at up to 100 watts of power. Some customers also mention that it supports the latest charging standards, including PD 3.0 and PPS charging. Overall, most are satisfied with the charging capabilities of the product.

"...to cater to various devices. • Powerful 100W output, ideal for charging laptops and more.Cons:..." Read more

"...It supports the latest charging standards including PD 3.0 which includes PPS charging..." Read more

"...This is my favorite feature.The 100W PD fast charging is a standout feature, allowing for 2x faster charging than standard chargers...." Read more

"...It may not be able charge. If so, you will have to "jump start" the batteries using a 3A 24VDC power supply." Read more

107 customers mention107 positive0 negative

Customers are satisfied with the appearance of the power bank. They mention it looks good, sleek, and cool. Some appreciate the design and say it's a stylish accessory. They also appreciate the LED display and say that it makes an excellent job making an attractive power bank that makes no compromises.

"...The inclusion of an IPS screen is a thoughtful touch, offering real-time updates on battery levels and charging status.Pros:..." Read more

"...The circuit board is nicely done, they’ve got this gray and yellow theme which comes together nicely...." Read more

"...The screen is bright and colorful but the settings screen text is so tiny they should put a curved magnifier on the display not only to enhance..." Read more

"...This thing looks cool and the display is more than gimmicky. Tells me all the information I need to know (minus total energy or mAh)...." Read more

32 customers mention32 positive0 negative

Customers appreciate the information on the display of the power bank. They say it provides more information than most people need, is invaluable for nerds, and is useful to see if the devices connected are fast charging. Customers also love the statistics readout.

"...stylish, and highly functional portable charger, perfect for tech enthusiasts and everyday users needing a power boost on the go." Read more

"...It’s small but packs in a lot of information. If you have sharp eyes you’ll love this display. If you don’t—like me—you’ll need your glasses...." Read more

"...This thing looks cool and the display is more than gimmicky. Tells me all the information I need to know (minus total energy or mAh)...." Read more

"...bank that packs a punch with its unique see-through design, intelligent IPS screen, and fast charging capabilities...." Read more

24 customers mention22 positive2 negative

Customers are satisfied with the adjustable DC output of the power bank. They mention that it's a great feature that makes the device really versatile. Some appreciate the ability to change voltages to power older devices with wires non standard. They also love the original look and the variable DC input so you can charge with solar power. Overall, most are happy with the settings flexibility provided by the product.

"...You can reset the timer on the main display. More display settings. You can force it to power off here. Or exit the menu...." Read more

"...of battery life, output distribution, running temperature, and DC voltage adjustment...." Read more

"Very flexible battery pack. I like the variable voltage settings.HOWEVER, be very careful NOT to deplete the battery pack down to zero...." Read more

"...The variable voltage DC output is a great feature, makes the device really versatile, for example charging older laptops with no USB-C...." Read more

96 customers mention61 positive35 negative

Customers are mixed about the performance of the power bank. Some mention that it works adequately, all the advertised features work well, and does everything it says it will do. However, others say that after a month, the screen stopped working, and the power won't power up.

"...for the kind of projects I have around the house, and it lets me work wherever I want without having to find an electrical outlet...." Read more

"...After a month, the screen stopped working. It still charges but doesn't seem safe since this metal piece is getting cooked by the parts inside...." Read more

"...It works well. Charging at 100w is no joke, and the heat sink functions well in this device. Overall, it's the best battery bank I own...." Read more

"I absolutely love this battery, it's been working perfectly for me and helped out during an extended power outage that we had the other night as well..." Read more

43 customers mention19 positive24 negative

Customers are mixed about the value of the power bank. Some mention it's worth every penny, reliable, and has fast charging. However, others say it'd be better off with a different brand and that it'll die after a few months.

"...It was expensive. The percentage is really hard to read. I like the outputs and charging speed. I don’t like the single button long presses...." Read more

"...It’s pretty heavy but it’s worth the trades offs for this amount of performance." Read more

"...Overpriced? A bit, yeah. But the reason for this is the really cool design and all all the bells and whistles this thing has...." Read more

"...Would I I say it’s a good value for your money, when it comes to similar devices offering similar performance yeah it’s definitely more, but since..." Read more

34 customers mention19 positive15 negative

Customers are mixed about the ability to charge. Some mention it's a great looking power bank that charges most devices, and has a generous capacity that allows them to charge their devices multiple times. They also like that it can charge multiple things at the same time while off, and the speed in which this unit can charge multi items is throughly impressive. However, some customers say that there were times charging multiple devices did not work, and that it doesn't reliably charge their Apple Watch, Rog Ally proper, or iPad Pro. They tried to reset it, nothing changed.

"...I've had no issues charging my IdeaPad @60w. It's also able to take my most powerful charger which is also 60w PD...." Read more

"...But alas it does not work in this way. Other than that this is a brilliant product and the screen is extremely useful!" Read more

"...of this power bank is its generous capacity, which allows me to charge my devices multiple times without having to worry about running out of power...." Read more

"...She won’t charge my Rog Ally proper nor my iPad Pro. I tried to reset it nothing changed...." Read more

Power as art.
5 Stars
Power as art.
Speechless. It's beautiful. I'm an electronics engineer so anything in a see through shell gets me all sorts of happy. The build quality is impressive and I can see a well thought out design. The screen is bright and colorful but the settings screen text is so tiny they should put a curved magnifier on the display not only to enhance viewing but to protect the screen from damage. There is also a warning about not applying power at the same time it is in use. I can't determine the nature of this warning but I can see someone accidentally charging while it's also in use so protection should be implemented. With care, this is a great device. The yellow cable is flexible and feels like natural rubber. You get a nice protective pouch and a well written instruction booklet.
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Top reviews from the United States

Reviewed in the United States on April 2, 2024
This Shargeek Portable Charger, particularly the Storm 2 model, brings a game-changing experience to the table. It’s touted as the world’s first see-through battery pack, a feature that not only adds to its aesthetic appeal but also allows you to witness the tech magic inside. The charger boasts a generous 25600mAh capacity, ensuring your devices, from laptops like MacBook Pro/Dell XPS to iPads and iPhone 13, stay powered throughout the day. The inclusion of an IPS screen is a thoughtful touch, offering real-time updates on battery levels and charging status.

Pros:

• High capacity of 25600mAh suitable for multiple device charges.
• Unique see-through design and IPS screen for a tech-savvy look and functionality.
• Versatile charging options with DC, 2 USB-C, and USB ports to cater to various devices.
• Powerful 100W output, ideal for charging laptops and more.

Cons:

• The size might be bulkier compared to other portable chargers, given its high capacity.
• Premium features may come with a higher price tag, potentially making it less accessible to budget-conscious consumers.

Overall, the Shargeek Storm 2 is a reliable, stylish, and highly functional portable charger, perfect for tech enthusiasts and everyday users needing a power boost on the go.
Customer image
5.0 out of 5 stars Compact Powerhouse: Shargeek Portable Charger Review
Reviewed in the United States on April 2, 2024
This Shargeek Portable Charger, particularly the Storm 2 model, brings a game-changing experience to the table. It’s touted as the world’s first see-through battery pack, a feature that not only adds to its aesthetic appeal but also allows you to witness the tech magic inside. The charger boasts a generous 25600mAh capacity, ensuring your devices, from laptops like MacBook Pro/Dell XPS to iPads and iPhone 13, stay powered throughout the day. The inclusion of an IPS screen is a thoughtful touch, offering real-time updates on battery levels and charging status.

Pros:

• High capacity of 25600mAh suitable for multiple device charges.
• Unique see-through design and IPS screen for a tech-savvy look and functionality.
• Versatile charging options with DC, 2 USB-C, and USB ports to cater to various devices.
• Powerful 100W output, ideal for charging laptops and more.

Cons:

• The size might be bulkier compared to other portable chargers, given its high capacity.
• Premium features may come with a higher price tag, potentially making it less accessible to budget-conscious consumers.

Overall, the Shargeek Storm 2 is a reliable, stylish, and highly functional portable charger, perfect for tech enthusiasts and everyday users needing a power boost on the go.
Images in this review
Customer image
Customer image
Reviewed in the United States on July 31, 2022
The media could not be loaded.
 See the video for the Storm2 in use. Following is a transcript:

Here’s a review of the Shargeek Storm 2 power bank. I picked this up because I wanted a power bank with USB type C and raw DC power output. I’ve been really happy with it. You can see it has a clear polycarbonate case that looks great. The circuit board is nicely done, they’ve got this gray and yellow theme which comes together nicely.

Ports on the side are DC in or out, a USB type C that can be used for charging or output, and USB type A and C that are output only. They’re marked but the labels are pretty small.

Of course the main thing you notice is the OLED display. It’s small but packs in a lot of information. If you have sharp eyes you’ll love this display. If you don’t—like me—you’ll need your glasses. It’s small. You’ll see icons across the top when you plug in devices. The bottom left shows input power and output power in watts. It also shows voltage and current but I challenge anybody to read those numbers without a magnifying glass.

On the right side the display shows battery charge remaining at the top, which is totally unreadable but the color will change when it gets low. Then you have total cell voltage, cell current, and two temperatures which I believe are the circuit board and cell temps, and finally a timer showing how long power has been drawn from the batteries.

I’ll walk you through the menus. Long press to get into the menu, short press to move between items. First is the DC power output—I’ll come back to that. Next is the cell voltages and cycle count. Next you can change the temperature display. You can reset the timer on the main display. More display settings. You can force it to power off here. Or exit the menu.

I skipped past the DC output which goes to the barrel jack. Let’s look at that now. You need to turn on the DC output in the menu. When I do that it brings up a warning which says to not try charging from the DC jack when the output is on. Long press to continue.

The first two menu items increase and decrease in whole volts. The two below increase and decrease in tenths of a volt.

It’s hard to see from the tiny display, but the DC output makes this power bank really useful for powering electronics projects. That’s part of why I selected this one. If you don’t need the DC output, you might want to look at their smaller model which just has USB output.

I’ll show you here the Storm 2 powering a Pinecil soldering iron using the USB type C output. The iron has no problem drawing the current it needs from the power bank. This has proved wonderfully useful for my various projects.

Finally, here’s a DC load on the barrel jack. I have the voltage set to 20 volts out, and my little load box here will draw 1.5 amps, or 30 watts total. The power bank does that no problem. One thing I discovered, however, is that the barrel jack is 5.5 by 2.5 millimeters and most of my barrel plugs are for a 2.1 millimeter center pin, not 2.5. This is pretty annoying. For this test I have a 2.5 to 2.1 adapter on the power bank.

Overall I’m really happy with the Storm 2. It’s wonderful for the kind of projects I have around the house, and it lets me work wherever I want without having to find an electrical outlet. Please don’t tell my wife I’m soldering at the kitchen table again.

Downsides are it’s a little big and heavy for travel. I might pick up their smaller model for that. And I do wish the display was a little bigger, as it can be hard to read. Still, five stars, I’m glad I bought this.
161 people found this helpful
Report
Reviewed in the United States on April 21, 2024
Speechless. It's beautiful. I'm an electronics engineer so anything in a see through shell gets me all sorts of happy. The build quality is impressive and I can see a well thought out design. The screen is bright and colorful but the settings screen text is so tiny they should put a curved magnifier on the display not only to enhance viewing but to protect the screen from damage. There is also a warning about not applying power at the same time it is in use. I can't determine the nature of this warning but I can see someone accidentally charging while it's also in use so protection should be implemented. With care, this is a great device. The yellow cable is flexible and feels like natural rubber. You get a nice protective pouch and a well written instruction booklet.
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5.0 out of 5 stars Power as art.
Reviewed in the United States on April 21, 2024
Speechless. It's beautiful. I'm an electronics engineer so anything in a see through shell gets me all sorts of happy. The build quality is impressive and I can see a well thought out design. The screen is bright and colorful but the settings screen text is so tiny they should put a curved magnifier on the display not only to enhance viewing but to protect the screen from damage. There is also a warning about not applying power at the same time it is in use. I can't determine the nature of this warning but I can see someone accidentally charging while it's also in use so protection should be implemented. With care, this is a great device. The yellow cable is flexible and feels like natural rubber. You get a nice protective pouch and a well written instruction booklet.
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Richard Smith
5.0 out of 5 stars Very handy
Reviewed in Canada on February 24, 2024
This has provided me with a great backup power supply for my laptop on those occasions when a plug in supply is not available. The visual display of power usage etc. is also a great feature.
F. Wohlers
5.0 out of 5 stars Unterstützt PD3.0 und hat einen DC-Ausgang zur freien Spannungseinstellung
Reviewed in Germany on April 1, 2024
Ich möchte einen Erfahrungsbericht mit euch teilen, über das SHARGEEK STORM2.
Das Teil sieht schon edel aus, in seiner transparenten Umhausung.
Die ersten Tests haben ergeben das man sich keine Gedanken über das Laden machen muss,
Wenn man nichts Besonderes möchte als nur externe Geräte mit Akku zu laden.
Die intelligente Ladeelektronik passt sich dem benutzen Standard des zu ladenden Gerätes an.
So gut, so einfach. Aber…
Schaut man ein bisschen hinter der Ladeelektronik, gibt es da ein paar Fallstricke oder man sollte gewisse Sachen beachten. Das User Manual gibt nicht viel über die technischen Infos her, außer den Ausgangsspannungen und den verfügbaren Strom. Hier gilt, wer lesen kann ist stark im Vorteil!

1. Die 100 W stehen nur auf C1 zur Verfügung, die 5 A auch nur bei 20 V
2. C2 hat nur 30 W Ausgangsleistung mit maximal 15 V, ich hätte jetzt auch hier 20 V erwartet.
3. Der USB-A Ausgang hat maximal 18 W, was auch normal und Standard ist.

Das sind die Standard Anschlüsse über USB. Den DC-Anschluss ergänze ich später.

Laden des STORM2: getestet habe ich nur den C1 mit einem MANTO 65W und 100W.
Es funktioniert einwandfrei, die Leistungsangabe 60W und 100 W stimmen mit dem von MANTO überein.

Die reguläre Spannungsversorgung über USB, um externe Geräte zu betreiben oder zu Laden, brauche ich hier nicht beschreiben, da es über die Schnellladestandards definiert ist. Hier ist nur zu erwähnen, das PD3.0 (und nicht PD3.0 PPS?) unterstützt wird. Dazu fehlt eine Angabe im User Manual. (Über PPS habe ich keine Beschreibung gesehen. Ich gehe aber davon aus, dass das STORM2 PPS unterstützt. Das User Manual ist vom Shargeek 100 und im Internet wird angegeben, das PPS unterstützt wird.)

Ich wollte jetzt mein RasPi 5 über STORM2 autark mit Spannung versorgen. Da gibt es aber ein kleines Problem.. Hier wieder, wer lesen kann…
1. Der RasPi erwartet eine Eingangsspannung von größer 5,1 V, ansonsten wird gemeckert.
2. Der RasPi erwartet einen Eingangsstrom von mindestens 5 A, hier wird auch gemeckert.

Problematisch ist es nicht, RasPi läuft auch mit abweichenden Daten, aber es erscheint ein Hinweisfenster.
Erster Test mit C2: Da wurde die fehlende Spannung von mindestens 5,1 V gemeldet, auch die Bereitschaft sauber hochzufahren, war etwas eingeschränkt und bedurfte mehrere Starts.
Zweiter Test mit C1: Da wurde der fehlende Strom von mindestens 5 A gemeldet auch die Bereitschaft sauber hochzufahren war nicht so dolle. (Anmerkung MANTO funktioniert, nur die Spannung wird gemeldet). Das hat mich stutzig gemacht und ich habe mir die technischen Daten des STORM2 genauer angesehen. Dabei habe ich gesehen, das 5,1 V und 3 A maximal auf den USB Ausgängen zur Verfügung stehen. Also keine 5A. Dies ist auch nicht in den Schnellladestandards vorgesehen. Clever wie ich bin, dachte ich, dann nutze ich halt den DC Ausgang. Aber Pustekuchen, da werden bei 5 V auch nur 3 A geliefert. Also nur bei 20 V können auch die 100 W abgegeben werden und das auch nur auf C1 und nicht auf dem DC Ausgang! RasPi unterstützt aber keine 20 V da der Standard dafür nicht integriert ist!

Zwischen C1 und C2 gibt es aber noch einen Unterschied, der Wirkungsgrad, der ist bei C1 besser als bei C2. Bei 15 W Ausgangsleistung auf C1 wurde mir eine Akkuentladung von 15,5 W angezeigt. Bei C2 waren es nur 14,5 W Ausgangleistung bei 15,5 W Akkuentladung. Dies ist auch zu erklären. Ich vermute das es an unterschiedlichen Designs der Power up/down Regelung liegt. Also sollte man, wenn es extrem auf AKKU Laufleistung ankommt, immer C1 benutzen, ansonsten kann man es ignorieren.

Der Wirkungsgrad wird auch nur mit 70% im Manual angegeben und ist nicht gerade berauschend. Hier wäre eine kleine Kennlinie über den Spannungsbereich und dem Laststrom von 3 und 5A nicht schlecht gewesen. Ein typischer Wirkungsgrad für Power up/down Regler liegen zwischen 80 und 90 %. Dies ist aber alles Design abhängig und nicht vergleichbar. Das mit den 70% konnte ich jetzt nicht nachvollziehen und ist vielleicht eine worst case Angabe. Nachtrag: Der Wirkungsgrad bezieht sich auf die Eingangsleistung und auf die Ausgangsleistung des Akkus. D.h. Wirkungsgrad beim laden ca. 85% und Wirkgungsgrad bei entladen ca. 85 % ergibt dann 0,85x0,85 = 0,72 und somit ca. 72 %. Also ist die Angabe 70% nachvollziehbar.

Mein Fazit: Bereue ich mit das STORM2 angeschafft zu haben? - Nein, noch nicht, ich teste den DC Ausgang noch ausführlich, da ich mit den STORM2 kurzentschlossen für die Nutzung mit dem DC Ausgang zugelegt habe. Aber ich habe mal wieder gelernt, die technischen Daten doch genauer auf meine Anforderungen abzuklopfen. Die technischen Möglichkeiten sind hier bei weitem nicht ausgeschöpft worden und es ist dem Preis wohl nur dem "edlem" Gehäuse zu verdanken. Gleichwertige Powerbanks mit mehr Leistung und auch PD 3.1 Standard sind preiswerter zu bekommen. Der einzige Vorteil des STROM2 ist der DC Ausgang und ob das den Preis rechtfertigt, muss jeder für sich selber entscheiden. Was auch noch negative zu beurteilen ist, das kein Adapter von 2,5 mm auf 2,1 mm oder ein Anschlusskabel mit 2,5 mm mit offenen Enden mitgeliefert wurde. So muss man sich die Anschlussmöglichkeiten selber zusammensuchen.

Ach ja, was mir noch aufgefallen ist: das Power Pack reagiert mit der Anzeige empfindlich auf statische Aufladung. Das liegt vermutlich an das falsch gewählte Material des Gehäuses. Ich bekommen ein Spannung und Stromanzeige, obwohl nichts angeschlossen ist. Auch schaltet sich die Anzeige ab und an ein, wenn ein Ladekabel am Power Pack eingesteckt ist, aber nichts geladen oder betrieben wird. Statische Spannung halt. Also wenn man definitiv sicher gehen will das das Power Pack sich ausschaltet, dann kein Ladekabel stecken lassen. Geht das Power Pack in den Ruhe oder Abschaltmodus und das Ladekabel ist noch angeschlossen, beginnt die Ladung nicht wenn ich das Ladekabel im Handy einstecke. Es muss erst der Anschluss aus dem Power Pack rausgezogen und wieder reingesteckt werden.

Es ist hier noch Luft nach oben und nicht unbedingt Stand der Technik. Wenn es ein Akku Pack mit PD 3.1 und DC Ausgang gibt, dann bin ich wieder dabei. Vielleicht klappt es dann mit dem RasPi und dem Akku Pack. Auf jeden Fall nicht mit den Schnelladestandards bis PD 3.1.

Nachtrag: Ich habe mir noch das ReVolt mit 18Ah und DC Ausgang mit 5A zugelegt und es liefert auf dem DC-Port auch 5A wie angegeben. Das was ich eigentlich vom STORM2 erwartet hatte. Aber.. wer lesen kann... Der Preis vom ReVolt ist auch nur halb so hoch.. und es ist ein DC Anschlusskabel mit 15 Adapter und ein Anschlusskabel für PKW Zigarettenanzünder dabei. Das hätte man bei dem Preis vom STORM2 auch erwarten können.

Aber Jetzt bin ich rundherum versorgt. Ein edles Teil mit 25 Ah und ein funktionales mit 18Ah.
Miguel Chacon Carrasco
5.0 out of 5 stars Totalmente recomendable
Reviewed in Spain on March 27, 2024
Es muy buena batería, potente y de gran capacidad. Es muy resistente
Hetangiohunt
1.0 out of 5 stars Bellissimo quanto inutile
Reviewed in Italy on March 13, 2024
Il dispositivo è esteticamente stupendo, quasi un peccato utilizzarlo per timore di graffiarlo.
Al di là di questo che è più che normale per un device trasparente il problema sta per ciò che dovrebbe servire.
Ricarica senza problemi iPhone e Switch, purtroppo non funziona minimamente con Lenovo legion go, motivo per cui mi ero spinto all’acquisto.
Un peccato…ci speravo visto anche il prezzo esagerato.
Reso senza problemi con Amazon.
Light-DelaBlue
5.0 out of 5 stars une grand puisance
Reviewed in France on February 10, 2024
une power bank tres pratique avec une sortie DC en plus qui et trs utilie pour remetre en service des ancien pc portable sans rester a la maison.
coter sortie de chargte ca tien tres bien la route avec un port a 100w et deux a 25w
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