Ma jiraan wax ka xun walaaca batteriga? Dhammaanteen waxaan ku tiirsanaaneynaa tignoolajiyada mobilada ee cajiibka ah sida taleefannada casriga ah si aan nolosheena uga dhigno mid fudud oo aad u macaan. In kasta oo aaladahani ay noqdeen kuwo si cajiib ah u awood leh, haddana aad ayaan uga fognahay in aan dib u buuxinno hal mar dhawrkii maalmoodba mar.

Taleefannada casriga^(Modern) ah ee casriga ah ayaa si dhib yar u maamula 24 saacadood oo kharash ah iyaga oo isticmaalaya dhexdhexaad, sidaa awgeed waxa aanu u isticmaalnay in aanu ka rarayno aaladahayaga mid charger oo kale. Waxaan lacag ku qaadnaa guriga, baabuurta iyo shaqada. Kaliya si aad u ilaaliso digniinta "bateriga yar" ee laga baqo.

Taasi waa sababta "bangiga tamarta" ee meel kasta leh uu noqday mid caan ah dhowrkii sano ee la soo dhaafay. Lebenkan is haysta ee cabbirrada kala duwan leh waxay kaydin karaan casiir ku filan si uu taleefankaaga ugu kaydiyo maalmo. Bangiyada korontada^(Power) ayaa laga yaabaa inay badbaadiyeen maalinta in ka badan inta qofba ogyahay, laakiin dadka intooda badan waxay isticmaalaan iyaga oo aan runtii waxba ka ogeyn. 

Hubaal, bangiga korantadu run ahaantii waa badeecad "plug-and-play", laakiin waxaa jira waxyaabo qaar qof kasta oo isticmaala aaladahan caanka ah ay tahay inuu ogaado. Ka dib oo dhan, aad bay uga casrisan yihiin inta badankeen ogaano. Si lagaaga caawiyo inaad noqoto isticmaale xog badan (iyo iibsada) bangiyada tamarta, halkan waxaa ah xaqiiqooyin lama huraan ah oo ay tahay inaad xasuusato kahor intaadan isticmaalin mar kale.

Isticmaalka^(Use) Bangiyada Korantada ( Suurtogal ah^{(Potentially Dangerous)} ) baytariyada Lithium^{(Lithium Ion)} Ion

Tiknoolajiyada baytarigu waa hab, maanta^(way) ka wanaagsan sidii hore. Taasi waxay u ekaan kartaa indho-indhayn cad, laakiin dad yar ayaa xusuusta sida tignoolajiyada hore sida nikkel-cadmium ay waligood u qaateen inay wax dallacaan oo ay haystaan ​​​​wax awood ah.

Nasiib darro, baytariyadan casriga ah ee cajiibka ah waxay la yimaadaan digniino. Cufnaanta tamarta sare ee noocaas ah, waxaa mar walba jirta fursad ah in batteriga uu ku sii daayo dhammaan hal qarax oo aan la xakameynin.

Taasi waxay u tarjumaysaa qarax ama dab, taas oo aad u daran! Waxa laga yaabaa inaad maqashay sheekooyin naxdin leh oo ku saabsan guryo ka gubanaya sabuuradaha ciladaysan^{(faulty hoverboards)} ama taleefoonnada ku qarxay^{(phones exploding)} jeebabka dadka. Taasi waa waxa dhaca marka baytariyada lithium ion ay xumaadaan.

Sababta kaliya ee heerka shilalka dhabta ah loo aqbali karo waxay hoos ugu dhacdaa martigeliyaha heerarka badbaadada iyo tignoolajiyada lagu dhisay aaladaha lithium. Si kastaba ha ahaatee, baytariga lithium-ka ee bangigaaga korantada waxa uu isu rogi karaa shay khatar ah iyada oo si xun loo isticmaalo sidoo kale. In la dalooliyo ama la burburiyo waa hal dariiqo oo hubaal ah oo sababa olol gudaha ah oo gaaban oo xiga.

Waxa la mid ah in lagu soo bandhigo kulaylka jiifa daaqadda baabuurka kulul ama aad ugu dhowdahay il kulaylka. Markaa ka fiirso sida aad ula macaamilayso bangigaaga tamarta cusub oo ula dhaqan heerka saxda ah ee ixtiraamka.

Isla mar ahaantaana, waa inaad iibsataa oo aad isticmaashaa bangiyada korontada oo keliya kuwaas oo calaamadeysan oo shahaado ka haysta ururada badbaadada macaamiisha. Shahaadada UL^{(UL certification)} waxay u badan tahay inay tahay heerka ugu caansan Maraykanka^(USA) , iyadoo dhulal kale ay leeyihiin wax u dhigma.

Bangiyada korantada waxay u baahan yihiin inay yeeshaan astaamo dhowr ah sida lacag-qaadis xad-dhaaf ah, xad-dhaaf ah iyo ilaalinta kulaylka si loogu tixgeliyo badbaado isticmaalka. Alaabooyinka aan summada lahayn, kuwa aan shahaado la hayn ayaa laga yaabaa inay lahaadaan qaar ama midna sifooyinkan. Waa kuwee^(Which) cuntada musiibada!

Awoodda Bankiga Korontadu mar walba ma aha waxa ay u muuqato

Bangiyada tamarta waxaa lagu qiimeeyaa caalamka oo dhan saacadaha milliampere, oo loo soo gaabiyo "mAh". Tani waa cabbirka inta uu le'eg yahay kharashka koronto ee uu batarigu hayn karo.

Batariga ku dhex jira taleefankaaga casriga ah ama laptop-ka ayaa waliba leh qiimayn isla unug la mid ah. Markaa haddii aad iibsato batari 10 000 mAh ah oo taleefankaagu ku ciyaaro batari 2500 mAh ah, waa inaad ka heshaa afar lacag oo buuxa, sax?

Waxaa soo baxday in ay jiraan xoogaa suuqgeyn khafiif ah oo aan daacad ahayn oo halkan ka socda, iyo sidoo kale cabbir ka sarreeya oo ay uga mahadcelinayaan sharciyada fiisigiska.

Wareegtada suuqgeyntu waa inay la xiriirtaa farqiga danab ee u dhexeeya batteriga iyo gelinta qalabka. Unugyada lithiumku^(Lithium) waxay leeyihiin danab "magac ah" oo ah 3.7 volts. Si kastaba ha noqotee, USB-gu^(USB) wuxuu ku shaqeeyaa ugu yaraan shan volts sidaas darteed aaladda waxay filaysaa in lagu dallaco ugu yaraan danabkaas.

Si aan u aragno sida ay tani farqi u samaynayso waxaan u baahanahay halbeeg kale, saacada watt^{(watt hour)(watt hour)} (Wh). Kani waa unugga biilka korontada lagu cabbiro oo tilmaamaya tamarta dhabta ah ee la isticmaalay.

Isticmaalka xisaabiyaha mAh ilaa Wh^{(mAh to Wh calculator)} , waxaan aragnaa in 3.7V our 10 000 mAh bangiga tamarta uu leeyahay 37 Wh oo tamar ah. Si kastaba ha noqotee, baytarigeena 2500 mAh ee taleefanka ee lagu dallacay 5V wuxuu u baahan yahay 12.5 Wh. Taasi kaliya waxay ina siinaysaa ilaa saddex dib u dallac oo buuxa halkii ay ugu fiicnaan lahayd afar!

Intaa waxaa dheer, waa inaad tixgelisaa inaysan jirin wax la mid ah beddelka tamarta aan lumin. U beddelashada tamarta kiimikaad ee bangigaaga korantada korantada oo dib loogu celiyo kaydinta kiimikada waxay qayb ka mid ah u daadisaa kulayl ahaan.

Dhammaadka, waxaad qiyaas ahaan qiyaasi kartaa awoodda batteriga "dhabta ah" ee bangiga korantada ee qalabka ku dallacaadda qiyaastii saddex meelood laba meel awoodda lagu sheegay 3.7V danab magaceedu yahay. Qaar ka mid ah bangiyada batteriga ayaa dhab ahaantii sheegaya laba awoodood oo labadaba ah, taas oo ka dhigaysa shaqadaada mid sahlan. Kaliya^(Just) xasuusnoow in ay tahay lambarka 5V ee dhabta ah.

Amps-ka sidoo kale waa muhiim

Ku dallacaadda USB-ga caadiga^{(Standard USB)} ah waxay ku dhacdaa 5V iyo 0.5A. Haddii aad ka tagto danab isku mid ah oo aad kordhiso amperage, heerka socodka korontadu wuu kordhayaa. Taas macnaheedu waa bangigu si dhakhso leh ayuu u bixi doonaa oo aaladda bartilmaameedku waxay ku dallaci doontaa si dhakhso ah markeeda. Taasi waa, haddii ay taageerto ku dallacaadaha amperage sare.

Ku dhawaad ​​dhammaan taleefannada casriga ah ee casriga ah iyo tablets-yada waxay ku dallaci karaan 2.1A. Sidaa darteed waa wax caadi ah in bangiyada korantada ay haystaan ​​ugu yaraan hal deked oo lagu qiimeeyay 2.1A ama 2.4A. Aad bay badbaado u tahay in lagu xidho qalab kasta oo USB-adeegsan dekedda amperage-sare. Waxay heli doontaa oo keliya inta hadda jirta inta ay codsato. Ku xidhida talefankaaga dekeddan waxay ku dallaci doontaa xawaare la mid ah isticmaalka darbiga.

Waxaa jira dhinaca hoose ee arrintan. Soo daynta degdega^(Faster) ah waxay sababtaa kulaylka batteriga ku jira. Marka batteriga uu sii kululaado, waa yaraaneysaa waxtarkiisa. Markaa isticmaalka dekedda degdega ah waxay saameyn muuqata ku yeelan kartaa inta lacag ah ee aad ka baxayso dhamaadka maalinta.

Haddii aad isku dayayso in aad bangiga uga baxdo intii suurtogal ah, si firfircoon ha u isticmaalin taleefanka oo ha u dhaafin habeenkii oo dhan 0.5A. Deminta marka aad dallacato ayaa noqon doonta mid aad u fiican. Tani waa nooca dhacdo ee aad la kulmi lahayd markaad kaamamka ka fogaato tamarta dhexe. Meesha watt kasta lagu tiriyo.

Haddii aad rabto inaad tagto meel aad ku shuban karto bangigaaga korontada ka hor inta aanad ikhtiyaarka lahayn, markaa guud ahaan way fiicantahay inaad mar walba isticmaasho dekedda amperage-sare. Gaar ahaan haddii aad rabto in aad si firfircoon ugu isticmaasho taleefanka codsiyada gaajaysan sida GPS navigation.

Isagoo ka hadlaya dallacaadda, ka waran ku dallacaadda bangiga korontada dhabta ah?

Heerarka Dallacaadda Degdegga ah ayaa ^{(Quick Charge Standards Make)}Farqiga^(Difference) oo dhan Sameeya

Haddii aad haysato talefan casri ah, dhex-dhexaad ah ama ka wanaagsan, waxaad ogaan doontaa inay si dhakhso leh uga dallaci karto gidaarka. Markaa waxa la yaab leh marka bangiyada korontadu ay qaadan karaan maalin dhan si ay u dallacaan. Waxaa jira sababo kala duwan tan, laakiin haddii aad rabto inaad isticmaasho bangi koronto inta badan oo aadan si fudud u haysan mid xaaladaha degdegga ah, waqtiyada dallacaadda degdega ah ayaa muhiim ah.

Taleefannada casriga ah^(Modern) iyo tablet-yada sida caadiga ah waxay taageeraan hal ama nooc kale oo ah dallacaadda "dhakhso ah". Heerarka dallacaadda oo aad u badan ayaa jira si looga hadlo halkan, laakiin nasiib wanaag waxa kaliya ee ay tahay inaad sameyso waa inaad hubiso in bangiyada korontadu sheegay heerarka la taageeray ay la mid yihiin ugu yaraan mid ka mid ah jaangooyooyinka xajiyuhu bixiyo. Tani waxay si weyn u dhimi doontaa wadarta wakhtiga ay ku qaadanayso kor u qaadista unugyada.

Ku-gudbidda Dallacaadda^(Charging) waa arrin faa'iido leh

Kaas oo noo keenaya arrin kale. Haddii aad u malaynayso in aad haysato hal xabbo oo keliya, ma in aad marka hore dallacaadda bangigaaga korontada ama qalabka? Haddii aad leedahay bangi koronto oo taageero u ah dallacaadda gudbinta, markaa tani waa hal dhibaato oo aanad wajihi karin.

Bangiyada korontadu waxay isku dallici karaan darbiga iyagoo sidoo kale u gudbinaya aalad kale. Hal charger, laba qalab oo farxad leh. Waa muuqaal mudan in la raadiyo.

Laabtoobyada^(Laptops) qaar waxa dallaci kara Bangiyada Korontada qaarkood^{(SOME Power)}

Taleefannada, tablet-yada iyo aaladaha kale ee yar yar ee elektiroonigga ah waxay leeyihiin wax ka badan ama ka yar oo lagu jaangooyey awoodda 5V USB , laakiin laptop-yadu way ka duwan yihiin. Aaladahan waaweyni waxay aqbalaan koronto 12V ah oo ka imanaysa sahayda tamarta-sare ee AC ee hadda ka imanaysa darbiga oo u beddeleysa shay u macaan elegtarooniga jilicsan ee gudaha gacaliyahaaga dhabta ah. 

Waxaa jira laba siyaabood oo waaweyn oo laptop-kaaga lagu dalaci karo iyadoo la isticmaalayo bangiga korontada. Labada xaaladoodba, waxaad u baahan tahay bangi koronto leh oo leh astaamo sax ah. Laptobyo badan oo casri ah, gaar ahaan ultrabooks, ayaa hadda lagu dalaci karaa USB-C . Haddii laptop-kaaga lagu dalaci karo USB-C , taas oo ah waxa ku jira dabeyuhu isticmaali doono, markaa waxaad sidoo kale isticmaali kartaa bangi awood leh oo leh wax soo saarka USB-C oo taageera heerka USB-C PD ( Power Delivery ).

Waxaad u baahan tahay inaad isticmaasho fiilada USB-C ee dhabta ah oo leh isku xirka ^(USB-C)USB-C ee labada daraf. Dameerahaaga laptop-ka ayaa laga yaabaa inuu isticmaalo fiilada USB C ee la rari karo , markaas oo aad si fudud ugu wareejin karto bangiga korontada marka loo baahdo. Xadhkaha USB-C^(USB-C) PD waxaa lagu qiimeeyay 3A, laakiin qaar ayaa lagu qiimeeyay 5A. Haddii dabaylahaaga iyo laptop-kaaga labaduba ay taageeraan ku dallacaadda 5A markaas waxaa habboon in la helo fiilo ku habboon. Xaaladaha intooda badan si kastaba ha ahaatee, waxaad ka heli doontaa 3A ku dallaca wadarta guud ee korontadu 30W ka bangiga tamarta caadiga ah ee loogu talagalay ku dallaca laptop.

Hadda, ka waran haddii aad haysato laptop aan ku taageerayn ku dallacaadda USB-C ? Markaa waxaad u baahan doontaa bangi koronto oo gaar ah oo leh wax soo saarka laptop 12V ah. Kani waa deked aan USB ahayn oo ku shaqaynaysa fiilada la iska leeyahay ee uu bixiyo samaynta bangiga korontada.

Waxaad Ka Boodi Kartaa Baabuurka Ku Bilaabida Bangiyada Korontada Gaarka ah^(Power)

Waa run! Waxaa jira bangiyo koronto oo gaar ah oo la socda lifaaq kuu ogolaanaya inaad ku booddo-billow gaarigaaga. Kuwaani waa ka qaalisan yihiin bangiyada korontada ee ordaya waxaana ugu wanaagsan in looga tago meel badbaado leh oo gaarigaaga ah.

Waxay noqon karaan naf-badbaadiye dhab ah, maadaama aadan kaliya ku bilaabi karin gaarigaaga iyaga, waxaad sidoo kale cabi kartaa taleefankaaga si aad u wacdo caawimaad haddii taasi shaqeyn weydo. Hadda, si aad u caddaato, ma isticmaali kartid bangiga tamarta ujeedadan, laakiin tignoolajiyada bangiga aasaasiga ah waa isku mid.

Cimrigooda^(Lifespans) xaddidan ayaa ah nidaamka ^(Order)maalinta^(Day)

Mid ka mid ah sababaha ay dadka qaarkii ugu faraxsanayn in qalabka casriga ahi aanay haysan baytariyada meesha laga saari karo waxaa ka mid ah in baytariga lithium-ku yahay hal qayb oo leh cimriga ugu gaaban. In kasta oo talefankaaga intiisa kale laga yaabo inuu shaqeeyo tobanaan sano ilaa aad jir ahaan dhaawac u geysato mooyaane, waxa hubaal ah in batarigu uu sanadaha yar gudohood ka dhammaan doono.

Beteriyada lithium-ka ayaa si tartiib tartiib ah u luminaya awoodooda dalacsiin kasta. Ma aha sida shil dami ah oo batarigu shaqayn doono hal daqiiqo ka dibna joogsan doono kan ku xiga. Tirada guud ee tamarta uu batteriga kaydin karo si tartiib tartiib ah ayey u yaraaneysaa ilaa uu runtii bilaabo inuu dhaco.

Maalmahan waxaad filan kartaa inta badan baytariyada lithium-ka inay maraan ku dhawaad ​​500 oo wareeg oo buuxo ka hor intaysan bilaabin inay lumiyaan qadar la dareemi karo oo awood ah. Taasi waa wareeg soo shubid buuxda^{(full )} . Haddii aad, tusaale ahaan, ka dalacdo bangigaaga korontadu 50% ilaa 100% laba jeer, taasi waxay ku xisaabtamaysaa hal^(one) ku shubasho buuxa.

Sidoo kale ma filan kartid in bangiyada korontadu ay xilka u hayaan si aan xad lahayn. Markaa ka fakar inaad kor u qaaddo dhawrkii biloodba mar haddii aanad isticmaalin. 

Weligaa haka werwerin inaad mar labaad ka dhamaato ^(Out)korontada^{(Power Again)}

Waxaa laga yaabaa in maalin maalmaha ka mid ah aan ugu dambeyntii helno horumarkaas batteriga sare leh ee joornaalada sayniska ay had iyo jeer rajo leeyihiin. Nooc ka mid ah teknoolojiyadda kondhomiyaha sare ee heer-kulka oo ku shaqayn doona talefanka casriga ah muddo 100 sano ah. 

Hadda, waa inaan ku samaynaa tignoolajiyada batteriga oo aan ahayn wax sixir ah, laakiin hubaal la isticmaali karo. Thanks to bangiyada korontada, waxaan ku raaxaysan karnaa qalabka caatada ah, soo jiidashada leh anagoo haysana hab aan kor ugu qaadno marka aan ka fognahay korontada dhexe ama godka dallaca baabuurka. Ma jiro FOMO ama walaac batari. Isticmaale bangi koronto oo xog ogaal ah ahaan, waxaad ku raaxaysan kartaa faa'iidooyinka inaad leedahay awood badan oo aad u baahan tahay tuubada. Meel kasta oo aad joogto!

Everything You Should Know About Power Banks

Is there anything worѕe than batterу anxiety? We’re all becoming dependent on wonderful mobile technologies such as smartphones to mаke our lives easier and more pleаsant. While thesе devices have become incredibly power-efficiеnt, wе’re still pretty far awаy from only haνing to recharge once every few days.

Modern smartphones barely manage 24 hours of charge with moderate use, so we’ve grown used to moving our devices from one charger to the next. We charge at home, in our cars and at work. Just to keep that dreaded “low battery” warning at bay.

Which is why the ubiquitous “power bank” has become so popular over the last few years. These compact bricks of various sizes can store enough juice to keep your phone topped up for days. Power banks have probably saved the day more than anyone knows, but most people use them without really knowing anything about them. 

Sure, a power bank is literally a “plug-and-play” product, but there are some things every user of these popular devices should know. After all, they are much more sophisticated than most of us realize. To help you be a more informed user (and buyer) of power banks, here are some essential facts you should commit to memory before using one again.

Power Banks Use (Potentially Dangerous) Lithium Ion Batteries

Battery technology is way, way better today than ever before. That might seem like an obvious observation, but few people remember how older technologies like nickel-cadmium took forever to charge and held barely any power.

Unfortunately, these modern wonder batteries come with some caveats. With such high energy densities, there’s always the chance that the battery will release it all in one uncontrolled burst.

That translates to an explosion or fire, which is pretty serious! You may have heard horror stories about houses burning down from faulty hoverboards or phones exploding in people’s pockets. That’s what happens when lithium ion batteries go bad.

The only reason the actual accident rates are acceptable comes down to the host of safety standards and technologies built into lithium devices. However, your power bank’s lithium battery can turn into a dangerous object through misuse as well. Being pierced or crushed is one surefire way of causing an internal short and subsequent flameout.

The same goes for being exposed to heat from lying in a hot car window or being too close to a heat source. So be circumspect about how you handle your new power bank and treat it with the correct level of respect.

At the same time, you should only buy and use power banks that are branded and have certification from consumer safety organisations. UL certification is probably the most common standard in the USA, with other territories having their own equivalents.

Power banks needs to have several features such as overcharge, overvolt and overheating protection to be considered safe for use. Unbranded, uncertified products may have only some or none of these features. Which is a recipe for disaster!

Power Bank Capacity Isn’t Always What it Seems

Power banks are almost universally rated in milliampere hours, abbreviated as “mAh”. This is a measure of how much electrical charge the battery can hold.

The battery inside your smartphone or laptop also has a rating in the same unit. So if you buy a 10 000 mAh battery and your phone sports a 2500 mAh battery, you should get four full charges out of it, right?

It turns out that there’s some mild marketing dishonesty going on here, as well as a measure of overhead thanks to the laws of physics.

The marketing spin has to do with the voltage difference between the battery and the device’s charging input. Lithium cells have a “nominal” voltage of 3.7 volts. However, USB operates at a minimum of five volts and so the device will expect to be charged at least at that voltage.

To see how this makes a difference we need yet another unit, the watt hour (Wh). This is the unit your electric bill is measured in and indicates the actual energy used.

Using an mAh to Wh calculator, we see that at 3.7V our 10 000 mAh power bank has 37 Wh of energy. However, our 2500 mAh phone battery charged at 5V needs 12.5 Wh. That only give us about three full recharges rather than four at best!

On top of this you have to consider that there is no such thing as lossless energy conversion. Converting the chemical energy in your power bank to electricity and back to chemical storage will dump some of it as waste heat.

In the end, you can roughly estimated the “actual” battery capacity of a power bank for charging devices at about two thirds of the capacity stated at a 3.7V nominal voltage. Some battery banks actually state two capacities at both voltages, which makes your job easier. Just remember that it’s the 5V number that actually matters.

The Amps Matter Too

Standard USB charging happens at 5V and 0.5A.  If you leave the voltage the same and increase the amperage, the rate at which electricity flows increases. That means the bank will discharge more quickly and the target device will charge more quickly in turn. That is, if it supports charging at higher amperages.

Almost all modern smartphones and tablets can charge at 2.1A. Consequently it’s pretty common for power banks to have at least one port rated at 2.1A or 2.4A. It’s perfectly safe to plug any USB-compliant device into the high-amperage port. It will only receive as much current as it requests. Plugging your phone into this port will charge it at a speed similar to using a wall-charger.

There is a downside to this though. Faster discharging causes increased heat in the battery. The hotter the battery gets, the less efficient it is. So using the faster port could have a noticeable impact on how much charge you get out at the end of the day.

If you are trying to get as much out of the bank as possible, don’t actively use the phone and leave it overnight on the 0.5A output. Switching it off while charging would be optimal. This is the sort of scenario you’d encounter while camping away from mains power. Where every watt counts.

If you’re going to get to a place where you can recharge your power bank before you’re out of options, then it’s generally better to always use the high-amperage port. Especially if you want to actively use the phone for power hungry applications such as GPS navigation.

Speaking of charging, what about charging the actual power bank?

Quick Charge Standards Make All the Difference

If you have a modern, mid-range or better smartphone, you’ll know that it can charge pretty quickly from the wall. So it may be surprising when many power banks can take a whole day to charge up. There are various reasons for this, but if you are going to use a power bank often and not simply keep one for emergencies, faster charging times are critical.

Modern phones and tablets usually support one or another form of  “quick” charging. There are too many charging standards to discuss here, but luckily all you have to do is ensure that the power bank’s stated supported standards match at least one of the standards your charger provides. This will cut down significantly on the total time it takes to top up the cells.

Pass-Through Charging Is a Useful Feature

Which brings us to another issue. Assuming that you only have one charger, should you charge your power bank or device first? If you have a power bank with support for pass-through charging, then this is one dilemma you don’t have to face.

Such power banks can charge themselves from the wall while also passing charge on to another device. One charger, two happy devices. It’s a feature worth looking out for.

Some Laptops Can Be Charged By SOME Power Banks

Phones,tablets and other small electronics have more or less standardized on 5V USB power, but laptops are different. These larger devices accept 12V power from a supply that converts the high-voltage AC current coming from the wall into something palatable for the delicate electronics inside your beloved lap-warmer. 

There are two main ways your laptop can be charged using a power bank. In both cases, you need a power bank with the right features. Many modern laptops, especially ultrabooks, can now be charged via USB-C. If your laptop can be charged via USB-C, which is what the included charger will use, then you can also use a powerbank that has a USB-C output and supports the USB-C PD (Power Delivery) standard.

You need to use a true USB-C cable that has the oval USB-C connector on both ends. Your laptop charger might use a removable USB C cable, in which case you can simply move it over to the power bank when needed. USB-C PD cables are rated for 3A, but some are rated for 5A. If your charger and laptop both support charging at 5A then it is worth getting a compatible cable. In most cases however you’ll get 3A charging with a total power delivery of 30W from the typical power bank designed for laptop charging.

Now, what if you have a laptop that doesn’t support charging via USB-C? Then you’ll need a special power bank with a 12V laptop output. This is a non-USB port that works with a proprietary cable provided by the power bank maker.

You Can Jump Start a Car With Special Power Banks

It’s true! There are some specialized power banks out there that come with an attachment that allows you to jump-start your car. These are more expensive than your run-of-the-mill power banks and are best left in a safe spot in your car.

They can be a real lifesaver, since not only can you get your car started with them, you can also juice up your phone to call for help if that doesn’t work. Now, to be clear, you can’t use any power bank for this purpose, but the basic power bank technology is the same.

Limited Lifespans Are The Order of the Day

One of the reasons that some people are none too happy that modern devices don’t have removable batteries is that a lithium battery is the one component that has the shortest lifespan. While the rest of your phone might work for decades unless you physically damage it, the battery will almost certainly be out of puff within a few years.

Lithium batteries gradually lose their charge capacity with every recharge. It’s not like an on-off switch where the battery will work one minute and then stop the next. The total amount of power that the battery can store just gradually becomes less until it really starts to drop off.

These days you can expect most lithium batteries to go through around 500 full charge cycles before starting to lose a noticeable amount of power. That’s a full recharge cycle. If you, for example, charge your power bank from 50% to 100% twice, that only counts as one full recharge.

You also can’t expect power banks to hold their charge indefinitely. So make a point of topping them up every few months if you haven’t used them. 

Never Worry About Running Out of Power Again

Perhaps one day we’ll finally get that super-battery breakthrough that science journals are always promising. Some type of super-capacitor or room-temperature superconductor technology that will run a smartphone for 100 years. 

For now, we’ll have to make do with battery technology that’s not quite magic, but definitely usable. Thanks to power banks, we can enjoy slim, attractive devices while also having some way to top them up when away from mains power or a car’s charging socket. No more FOMO or battery anxiety. As an informed power bank user, you can enjoy the benefits of having as much power as you need on tap. Wherever you are!

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