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There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different.
!Privacy Protection WebCam Cover Shutter Slider For iPhone Web Laptop Macbook For iPad Iphone Xiaomi Mobile Phone Privacy Sticker
Specifications:
Color: Black/White
Size: 18 * 9 * 0.7mm / 0.7 * 0.4 * 0.03mm
Material: Plastic
Package weight: 5-10g
Compatibility: Flexible materials will not damage the surface of your device.Compatible with most smartphones, tablets, desktops, laptop and computers.
Advantage:
1.Protecting Your Digital Life: Covers your webcam when not in use, and prevents web hackers from Spying on you. It is perfect to provide privacy, security and peace of mind to individuals, groups, organizations, companies and governments.
2.Extremely Slim: Designed ONLY 0.7mm THIN, it will not interfere with closing your laptop.
3. Easy to Use: Webcam Cover can be opened or closed with just one simple finger movement. The adhesive can be easily applied and removed from the required device without trace.
4.Easy Installation: You can easily tear off the back protection film, and then place it around the lens.
5.Wide Compatibility Use: It fits on most smartphones, tablets, desktops, laptop, and computers.
Package List: Webcam Cover (The item is a cover, NOT a Webcam.)
Specifications
Key Features
- BrandName:HEONYIRRY
Certification:CE
Origin:CN(Origin)
PhoneCameraType:3DLen
Shape:Oval
CompatibleBrand:AppleiPhones
CompatibleBrand:Blackberry
CompatibleBrand:HTC
CompatibleBrand:LG
CompatibleBrand:Motorola
CompatibleBrand:Nokia
CompatibleBrand:Palm
CompatibleBrand:Panasonic
CompatibleBrand:Samsung
CompatibleBrand:Sony-Ericsson
CompatibleBrand:Toshiba
ModelNumber:Webcamcover
Support:Dropshipping
Material:Plastic
Size:18.5*9*0.7MM
Compatible1:Foriphone44s55c5s66s78plus
Compatible2:Forsamsunggalaxya5a3S10S8S9Plus
Compatible3:Forsnoyxperiac3e3e4lm2m4aquaspt3
Compatible4:ForsamsunggalaxyS6S7S8S9S10NOTE89
Compatible5:WebcamcoverforIphone
Compatible6:Webcamcoverultrathin
Compatible7:Forlgg2minig33sg4g4cl70l90
Compatible8:Forxiaomimi44cnote7promi3mi4cmi4imix23
Compatible9:ForWebIPadIPhonePCMacTabletPhoneLensprotectprivacy
Compatible10:Webcamcoverforlaptops
Compatible11:WebcamcoverFormacbook
Compatible12:ForWebIPadIPhonePCMacTabletPhone
Compatible13:Easytoinstallinawaythatitdoesnotinte
Compatible14:ForNotebookLaptopTabletForiPhoneAndroidSmartphonePrivacy
Compatible15:Holeaccurate,perfectlyfityourmobilecellphone
Compatible16:UltraThinWebCamCover
Compatible17:CameraSecureProtectsYourSecurity
Feature:Webcamcoverforlaptops,webcamcoverforiPad
Feature1:Laptopcameracover,UltrathinWebcamcover
Feature2:ForHuaweihonor7/6/4c,Honor9/9i/7X/7C/7A
Feature3:ForiPadAir2mini234Pro
Feature4:ForiPhoneXS,XSMAX,X,11,11Max,8,7,6,6s,6plus
Feature5:UltraThinWebCamCover
Feature6:CameraSecureProtectsYourSecurity
Feature7:lensWebcamCover
Feature8:CameraSecureProtectsYourSecurity
What’s in the box
Specifications
- SKU: GE779EA4N576ONAFAMZ
- Model: BGCDQ111
- Production Country: China
- Size (L x W x H cm): 12 x 13 x 15
- Weight (kg): 0.34
- Color: Black-15pcs
- Main Material: Synthetic
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