Are all Mini USB chargers the same?

What is a micro USB port for?

Micro USB is a miniaturized version of the Universal Serial Bus (USB) interface developed for connecting compact and mobile devices such as smartphones, MP3 players, GPS devices, photo printers and digital cameras.

The PSP 1001 phat will not charge via USB without a hardware mod. If you are trying to charge the PSP with the PSP USB cable, it should work. Make sure your laptop is charging when you plug in your USB cable to your PSP. Sometimes laptops turn off USB ports when they are running off a battery.

It is simply a USB cable, which allows my tablet to charge from a DC USB port in a car or laptop. Both sides have DC, so no conversion is required. Now, here is my tablet’s AC charging solution. The same USB cable plugs in to a little black box that plugs in to an AC outlet – the box converts AC to DC.

A USB port can give 500 mA output max provides 5 Volts x 0.5 Amo = 2.5 Watts. With real world efficency losses (nominally 80~90% efficent), you can provide a Higher Voltage with Less Current, or a Lower Voltage with More Current, but you can’t create powerout of nowhere.

no. Here’s why: the USB ports on laptops function to dispense power to other devices and peripherals, which is why you can charge your iPad, iPod, and other devices by simply plugging them in. This means that any battery pack or power solution meant for your laptop needs to be plugged into the power port.

5 volts

A: Short answer: Yes, you can. And if you want a faster charge, we encourage it. Apple explicitly approves of using its chargers across all devices that accept Lightning cables. The difference between either of those chargers and the 5-watt charger that comes with an iPhone will be just as dramatic.

If your device has an internal battery, charge it with the charger provided (a USB cable is not a charger, it is just the cable to plug it into a charger). Cell phone chargers or car USB chargers often provide more power than this.

Most smartphones require a minimum of 0.5A to charge, while some need 1A. Tablets often require a minimum of 1A and sometimes as much as 2.1A to charge. You can still plug smartphones into these higher-powered ports. In fact, they’ll charge faster if you do.

of course we can use Samsung adapter and Apple cable. the adapter only supplies power, it is only controlling the rate of charge or completion of charge. you must use an Apple cable that is certified as Made for iPhone. However, the USB power adapter can be any quality adapter that can supply at least 1 amp.

Cables Can Significantly Impact the Charging Speed of Your USB Devices. USB chargers can impact how fast your device’s battery gets back to 100%, but they’re not the only determining factor. The wrong cable can slow down charging speeds as well. USB cables have a data wire and a charging wire within the cable itself.

All USB cords carry the same 5V, regardless of if it’s got a 30-pin head or a microUSB plug, whether it’s first-party or third. That means DC chargers are now brand agnostic; if the volts, amps, and connectors are compatible, an Apple wall wart can charge an HTC just as easily as a Samsung.

Amazon Kindle Fire 5Ft Usb To Micro-Usb Cable (Works With Most Micro-Usb Tablets)

It is possible, however, to deduce from the web page Apple created “Charge the battery in your iPad,” that Apple is aware of this capability and endorses it. Simply increasing the current from .5 amps (USB charging cable) or 1 amp (the bundled iPhone charger) to 2.1 amps (the iPad charger) boosts the charging speed.

For mobile phones and other mobile devices like the Kindle that charge with USB, the voltage is typically 5V. A laptop charger might be as high as 20V or 25V. You can usually find the voltage your device needs on the device itself, on the battery, or if all else fails, on the manufacturer’s web site.

The very small USB port found on cellphones and other portable devices is a Micro-B socket. See USB 3.0 and USB. The Smallest USB Socket. The cable that plugs into the USB 2.0 Micro-B socket on this smartphone has a Type A plug at the other end for the computer or AC charger.

The iPhone will take 1A to charge, and an iPad will take 2.1A. There’s no harm in using a charger that is capable of providing more current than a device requires, but there’s no benefit either. Providing less current than the device requires will lead to longer charging times, or no charging at all.

An iPhone charger delivers 5 Watts (5 volts at 1000 mA). A Retina iPad mini charger delivers 10 watts (5.1 volts at 2100 mA). While all of these will charge your iPad, using the USB connected to a PC will charge your Retina mini four times slower than if you used the iPad charger it came with.

Most tablets require 2.1 amps to charge at a standard rate. Any time you apply a higher charge rate to the device, you can rapid-rate charge that device (e.g., using a 2.1-amp charger on a smartphone that requires only a 1-amp charger) This means the device can charge up to 20% faster than its standard rate charge.

You can use it also for other phones or devices, without any risk of damage. The fast charging mode (higher power output) is only enabled if a phone is requesting it from the charger. Without this request, the charger will behave like any other USB power supply.

Cell phones, mobile phones, even smart phones and tablets are very energy efficient because they are designed to run on a battery for a long period of time. Cell Phones use approximately 2 to 6 watts when charging, while a charger left plugged in without a phone will consume 0.1 to 0.5 of a watt.