投稿時間:2025-03-27 19:09:46 RSSフィード2025-03-27 19:00分まとめ(8件)

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IT	ITmedia 総合記事一覧	[ITmedia ビジネスオンライン] 日枝久氏、フジHDの取締役を退任　新役員の平均年齢は71.2歳→61.6歳に	https://www.itmedia.co.jp/business/articles/2503/27/news215.html	itmedia,オンライン,ビジネス	2025-03-27 18:23:00
IT	ITmedia 総合記事一覧	[ITmedia News] 米Apple、公式サイトで「Lumon Terminal Pro」の情報公開	https://www.itmedia.co.jp/news/articles/2503/27/news216.html	itmedia,apple,lumonterminalpro	2025-03-27 18:15:00
Program	JavaScriptタグが付けられた新着投稿 - Qiita	[Super convenient] Web File Management with One Tag	https://qiita.com/changkejun/items/3f943f089d44d83296af	First the main dinner You can use the web file management function with the following few lines o	2025-03-27 18:34:16
Program	JavaScriptタグが付けられた新着投稿 - Qiita	[efw helloworld] Test Each Type of Screen Action	https://qiita.com/changkejun/items/3accadd827594d1bccdf	For those who ask What is action I will explain it to you There are several patterns of web sc	2025-03-27 18:16:33
Program	JavaScriptタグが付けられた新着投稿 - Qiita	[efw helloworld] Test Each Type of Value Display	https://qiita.com/changkejun/items/f634ae1c8040cef4cc01	This is a continuation of Test Each Type of Input Element Please read the previous chapter for e	2025-03-27 18:14:15
Program	JavaScriptタグが付けられた新着投稿 - Qiita	[efw helloworld] Test Each Type of Input Element	https://qiita.com/changkejun/items/2f59403e8fa3b0f40eb7	What is efw efw Escco Framework is a server side JavaScript Ajax framework designed and develope	2025-03-27 18:12:19
Program	AWSタグが付けられた新着投稿 - Qiita	新社会人から始めた資格挑戦―AWS認定試験全勝&全冠のお話	https://qiita.com/icchi-it/items/ed903045eedec86f670b	新社会人,いっちー,認定試験	2025-03-27 18:08:03
海外TECH	Engadget	The best power banks and portable chargers for every device in 2025	https://www.engadget.com/computing/accessories/best-power-bank-143048526.html?src=rss	Few things are more panic inducing than a phone s battery hitting five percent when you re nowhere near a charger That s what power banks are for Keep a full one in your bag and you ll never have to worry about a dead phone or tablet or even laptop again For over two years I ve tested dozens of portable chargers ranging from small MagSafe compatible packs to massive milliamp hour bricks Not every battery out there is a winner and the tech seems to be steadily improving ーwhat I m testing in definitely outshines what I was trying out in So this guide is here to help you pick the best power bank for any situation along with our advice on what to consider when picking out a portable charger Table of contents Best power banks for How we test best power banks What to look for in a portable battery pack Other power banks we tested Best power banks for What to look for in a portable battery pack Battery type Nearly every rechargeable power bank you can buy and most portable devices contain a lithium ion battery These beat other current battery types in terms of size to charge capacity and have even increased in energy density by eight fold in the past years They also don t suffer from a memory effect where a battery s lifespan deteriorates due to partial charges One drawback you may have heard is the possibility of lithium ion batteries catching fire To limit the danger battery packs require internal mechanisms to limit things like voltage and pressure While you should still make sure a battery isn t exposed to unnecessary stress like excessive heat damage from drops or operating in freezing weather battery packs are considered safe enough to bring on an airplane According to the TSA external batteries rated at Wh or less which all of our recommendations are can fly with you just make sure you stash them in your carryon as they aren t allowed in checked baggage Capacity Power bank manufacturers almost always list a battery s capacity in milliamp hours or mAh Smaller batteries with a mAh capacity make good phone chargers and can fill a smartphone to between and percent Larger batteries that can recharge laptops and tablets or give phones multiple charges can exceed mAh and we have a separate guide that covers that entire category nbsp Unsurprisingly the prices on most batteries goes up as mAh capacity increases and since batteries are physical storage units size and weight go up with capacity as well If you want more power be prepared to spend more and carry around a heavier brick You might think that a mAh power bank could charge a mAh phone to percent twice but that s not the case In addition to simple energy loss through heat dissipation factors like voltage conversion also bring down the amount of juice that makes it into your phone Most manufacturers list how many charges a battery can give a certain smartphone In our tests mAh of battery pack capacity translated to roughly mAh of device charge mAh chargers delivered around mAh to a device and mAh banks translated to about mAh of charge That s an average efficiency rate of around percent Wireless More manufacturers are making power banks with wireless charging Not hassling with cables is nice but it s important to note that wireless charging is less efficient than plugging in your phone Outside of MagSafe options wireless portable chargers historically didn t make the cut for our top picks for this guide for that reason The Qi wireless charging standard arrived last year and improves performance for wireless charging including for portable banks Currently iPhones are the only handsets that support the new tech but as it s an open standard expect Google Samsung and others to adopt it for future phones In my testing I ve noticed an uptick in the performance of non Qi enabled batteries as well so you ll now see wireless options on this list Ports Since Apple ditched the Lightning cable and adopted USB C we re getting closer to a standard for charging connections ーand all of our picks have at least one such port But plenty of other devices use older interfaces like USB A and microUSB ports plus Lightning for older iPhones You can find cables with just about any combination of those connections so when you re picking out a battery just check that one end of your preferred cord will fit Most battery packs have more than one port which gives you different charging options You ll typically see at least one port labeled in out which means you can use it to both charge the bank and charge your device While USB A output ports can power up smartphones and other small devices they can t charge larger devices Plus they aren t as fast as USB C ports overall That s something to keep in mind when you re deciding which ports and charging cables to use to connect your phone to the pack There s even more variation among USB C ports themselves with different ports on the same device supporting different power transfer rates What that means in practical terms is an iPhone will charge just fine plugged into a power bank s W port But to properly charge say a MacBook or similar laptop it ll need the extra juice supplied by a W port which larger power banks can offer Power banks with more than one port can also charge multiple devices at the same time but speeds and the overall charge delivered will be lower You ll also want to consider your charging cable For anything larger than a smartphone and to access fast charging capabilities you ll want to use USB C ports and cables But not all cables are created equal even when they have the same USB C plugs on the end If you want power delivery from a W USB C power bank port you ll need a W rated USB C cable Luckily power banks capable of delivering W tend to include a compatible cable For any devices that don t we ve tried and liked Anker s W USB C cable For smaller devices we used this W cable from Nimble and we don t recommend bothering with cables under W For around higher capacity charging cables will make sure you re not wasting time with connections that limit your potential power transfer Design For the most part these rechargeable batteries have a squared off brick like design though many nod towards aesthetics with attractive finishes and detailing While that doesn t affect how they perform it s a consideration for something you ll interact with regularly Some portable power stations include extra features like MagSafe compatibility a built in wall plug or even a kickstand Nearly all have some sort of indicator to let you know how much available charge your power bank has left usually expressed with lighted pips near the power button Some of the newer banks take that a step further with an LED display indicating remaining battery percentage How we test best power banks Before we even put our hands on a battery pack we did extensive research We considered brands Engadget reviewers and staff have tried over the years and we checked out customer ratings on retail sites like Amazon and Best Buy Then we get our hanHere s the full list of power banks we ve tested which range from small wireless banks to large multi device batteries Amy Skorheim for Engadget MagSafe compatible Apple MagSafe Battery Pack mAh Spigen ArcHybrid Mag mAh Anker Magnetic Battery mAh Mophie snap PowerstationMmini mAh Baseus Magnetic mAh Anker MagGo Power Bank K mAh Anker Magnetic Battery mAh Anker MagGo Power Bank K mAh UGREEN mAh Magnetic mAh EcoFlow Rapid Magnetic mAh nbsp Low capacity mAh Mophie Juice Pack mAh Anker Power Bank mAh Anker Power Bank mAh Nimble Champ mAh Biolite Charge PD mAh Anker Nano mAh Nimble Champ mAh Satechi Quatro Wireless bank mAh Anker K Fusion power bank mAh Mid capacity mAh Baseus Blade mAh Otterbox Fast Charge mAh Mophie Powerstation Pro mAh Anker Prime mAh Nestout Portable Charger mAh Nimble Champ Pro mAh High capacity mAh Mophie Powerstation Pro XL mAh UGREEN Power Bank mAh W mAh Anker Power Bank mAh Zendure Supertank Pro mAh Mophie Powerstation Pro AC mAh Lion Energy Eclipse Mag mAh Lion Energy Trek mAh HyperJuice W mAh Anker Prime mAh Power Bank mAh Anker laptop power bank with built in cable mAh We re continuously updating this guide as companies release new products and we test them We remove some products as we find picks that are more worthy of the best portable charger designation We also add updated specs and prices where necessary nbsp For testing I used each battery with some combination of an iPhone an iPhone Plus an iPhone a Samsung Galaxy S Ultra a Galaxy S Ultra a th gen iPad Air and an M Pro inch MacBook Pro I charged one phone battery at a time even though some packs are capable of multiple device charging I charged the phones and tablets from between zero and five percent until they were percent full or until the power bank was dead and didn t use the phones or tablets while they charged other than to power them on and enter the unlock code In the case of the MacBook I used it while it was charging it s my work computer I used the charging cable included with each power bank to charge the Galaxy S Ultra MacBook Pro and the iPad Air For the iPhones I used the USB C to Lighting cable that Apple provides In the case of the lower capacity power banks that didn t include a cord or included one with USB C to USB A connectors I used this W rated USB C to USB C cable For reference here are the battery capacities of each device we used for testing iPhone mAh iPhone Plus mAh iPhone mAh Galaxy S Ultra mAh iPad Air mAh inch M Pro MacBook Pro mAh I noted the times for each charge and the number of charges each bank provided I also paid attention to things like ease of use and overall design Other power banks we tested Anker Prime mAh power bank Anker s Prime bank was our previous pick for the best premium power bank but I thought it worked best with the expensive yet very convenient base Considering it also doesn t have any built in cables we decided to bump the Prime battery from its position and replace it with the Anker Retractable Cable Laptop Bank There s still plenty to like about the Prime battery it s solid attractive and tells you just how much charge it has left with its onboard display When you add the optional base you not only get a convenient drop and go way to recharge it also acts as a charging hub with three additional USB ports EcoFlow Rapid magnetic I was curious to try out the first power bank from EcoFlow a company that primarily makes larger power stations and whole home backup batteries The first offering in the brand s Rapid series is a Qi enabled magnetic charger with a mAh capacity It looks quite nice with shiny silver accents and soft touch grey plastic on the MagSafe compatible front There s a little pull out leg that sturdily displays your phone as it charges and the attached USB C cable lets you refill devices directly then tucks out of the way when it s not in use But it didn t outperform our top pick in the MagSafe category in terms of both charging speeds and the amount of charge delivered Baseus Blade The Blade from Baseus has a unique flat shape that s just a little wider than an ereader ーwhich may make it easier to slip into a low profile laptop bag It charged a Samsung Galaxy S Ultra considerably faster than any other battery bank we tried getting it from four percent to full in just over an hour It then filled the phone back to percent from dead on a second charge in about a half an hour But is a lot for a standard power bank that holds fewer than two full charges But if you can find the Blade on sale snap it up Anker MagGo K Anker s k MagGo is pretty similar to our top pick for a MagSafe compatible battery pack It supports the Qi charging standard and props up your iPhone so you can use it or enable StandBy mode while powering up This one even lets you set the viewing angle from to degrees It was speedy in getting an iPhone up to percent in about minutes But for the added bulk it doesn t have as much capacity as the K MagGo holding just enough juice for a single full charge plus about percent But it is cheaper which may be key for some Mophie Snap Powerstation Mini The Mophie snap Powerstation Mini is terribly well built It feels premium with a rubberized contact point for the MagSafe charging pad and a stand that runs the entire width of the bank itself making it extra sturdy It s compact too but only carries a mAh capacity which gets you a partial charge on most newer or larger phones Our current MagSafe iPhone pick has double the capacity a stand and a digital display ーfor just more than the Powerstation Mini Power bank FAQs What s the difference between a portable power bank and a portable charger A slew of terms are used to describe power banks including portable batteries portable chargers external battery packs and even somewhat confusingly USB chargers which is what wall chargers are often called They all mean the same thing a lithium ion battery that stores a charge so you can refill a smartphone tablet earbuds console controller ereader laptop or just about any other device with its own built in rechargeable battery nbsp There s little difference between the terms so the specs you ll want to pay attention to are capacity expressed in mAh size and weight so you can find the right balance between recharging what you need and portability Power stations on the other hand are distinct These are bigger units often around the size of a car battery that can be used to charge multiple devices multiple times but notably they can t be taken on airplanes Does fast charging actually ruin your battery Not exactly The real enemy of a battery s longevity is heat The faster you charge a battery the more heat is generated Modern phones have features that keep the battery cool while charging like physical heat shields and heat sinks as well as software features that slow down processes that generate too much heat Phone manufacturers are keen to promote a phone s fast charging abilities so they had to figure out ways to make faster charging work While there aren t long term studies on what fast charging does to a phone a study on EV batteries which use the same general concept of charged lithium ions flowing from one side of the battery to the other absorbing or releasing a usable charge showed a very slight decrease in capacity over time with only fast charging ーthough what actually made a larger difference was how hot the battery itself was due to ambient temperatures when it was charged In short fast charging could be slightly harder on your battery than normal charging But the safeguards most smartphones have make that difference fairly negligible To really ensure you re taking the best care of your battery limiting heat exposure overall is one of the best things you can do Can you use a power bank for all your devices That depends on the size of the bank and the size of your device s battery A small mAh battery isn t strong enough to charge laptops but a portable charger with a mAh capacity will give your computer a partial refill You also have to consider port compatibility If your device has a USB port you ll be able to easily find a cable to connect it to a battery If your device has a more unique port such as a DC port you won t be able to use a battery Devices with an AC cable and plug can be charged and sometimes powered such as in the case of a printer or speaker by larger laptop batteries with AC ports This article originally appeared on Engadget at	2025-03-27 09:01:28