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Can charge the battery by usb cable? - HP Compaq nc4400 Notebook

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No you cannot because it is designed to be charged via a power adapter to the power connector on the laptop.

Posted on Dec 04, 2012

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How can i charge rechargable batteries without usb cable for GE c1433 digital camera


The C1433 is a camera, not a battery charger. It uses standard AA batteries, either disposables or rechargeables. If you choose to use rechargeable batteries, you must charge them outside the camera using a separate battery charger.

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Charging my juke with a usb cord


Fully charge the battery to maximize playing time. However, it is not necessary to fully charge or completely discharge the battery each time. You can charge the battery by connecting the jukebox either to the AC power adapter (fastest) or to a USB port on the computer. The battery icon in the upper right corner of the screen indicates the remaining battery charge.
  1. Connect the USB combo cable to the AC power adapter, and then plug the power adapter into an AC power outlet. Or, you can connect the USB combo cable to a USB port on the computer.
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  3. If you are charging your jukebox from the computer's USB cable, turn your jukebox off. If your jukebox is on, it cannot charge from the computer's USB cable. Note: If you are charging your jukebox from the AC power adapter, you can leave your jukebox on as it charges, but it will take longer to charge.

  4. If the jukebox is on, the power cord icon appears in the upper right corner of the display. The keypad's backlight turns on while the battery charges, and then turns off when the battery is fully charged.
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I dont how charge battery on my mp3 player


Some things to check for when your player does not act like its taking a charge. USB Cable Make sure that the USB cable is properly plugged in and use the original cable that came with your player. Computer in Hibernation mode Make sure the computer isn't entering hibernation or sleep mode while the device is connected. The computer must be ON in order to charge your player. USB Port 2.0 Make sure the player is connected to a USB 2.0 port (1.1 occasionally causes charging problems). USB Port location Try plugging into different USB ports (i.e. USB port in the back of the computer); occasionally the front USB ports have limited power to charge up the device. Battery Make sure the battery is fully charged. It takes approximately 3 hours to fully charge the battery. Latest firmware Depending on what player you have, make sure it's up to date with the latest firmware. AC charger (optional) AC chargers (sold separately) have a 500-1000 milliamp max output, which provides much better charging ability than a USB port.

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If you are trying to charge the gps battery on the computer you will need a usb cable to do this. Plug the usb cable into an empty spot and then plug the other end into the gps. Also note generally the usb cable will need one standard size end and a micro usb connection on the other end. Hope this helps.

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Sansa clip wont power up unless hooked up to usb


http://www.sandisk.com/media/175960/clip_um_0608_eng.pdf

Windows XP SP2
• Windows Media Player v10
• Intel Pentium class PC or higher
• CD-ROM drive
• USB 2.0 port for hi-speed transfers and charging

Make sure HOLD button is not on.

Battery
The Sansa
®
Clip player comes with an internal rechargeable battery. To use the player for
the very first time, remember to fully charge the battery. You can charge your Sansa
®
player through the USB port of your computer, a car adapter (not included) USB port, or AC
adapter (not included) USB port.
Charging
To charge the battery, please follow these steps:
1. Connect the larger end of the USB cable into an available USB port on the
computer.
2. Connect the smaller end of the USB cable into the Sansa
®
Clip player.
3. The computer must be on for most USB ports to charge your battery. Your
Sansa
®
will show connected and the yellow charging indicator will appear.
The battery level indicator will blink while charging. You will not be able to
play while connected to the computer USB.
4. To stop recharging, simply disconnect the cable.
The battery can also be charged using an AC adapter (not included) or a car adapter
(not included) and you will be able to play your device while charging with one of the
adapters.
NOTE: Some low-power USB ports may not be able to provide enough charge
power. Also note that the rechargeable batteries are not replaceable.

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1 Answer

When i connect my sansa clip 2gb it will not charge. it say connected and then goes off. I thought it was charging but when i checked it the battery had died what do you suggest i do to get it working...


Hi,
Check for the following:

USB Cable 
Make sure that the USB cable is properly plugged in and use the original cable. 

Computer in Hibernation mode 
Make sure the computer isn’t entering hibernate or sleep mode while the device is connected.  The computer must be on in order to charge your player. 

USB Port 2.0 
Make sure the player is connected USB 2.0 port (1.1 occasionally causes charging problems). 

USB Port location 
Try plugging in different USB port (i.e. USB port in the back of the computer); sometimes the front USB ports have problem charging up the device. 

Battery 
Make sure the battery is fully charged.  It takes approximately 3 hours to fully charge the battery. 

Latest firmware 
Make sure to update firmware by downloading and installing the Sansa Firmware Updater

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Audiovox SMT 5600 will not charge


If your battery goes COMPLETELY dead, which it will do if phone is not turned OFF and not used for a long period of time, you will need to JUMP START it using you OEM SMT-5600 AC charger. Other AC chargers will not work for this purpose and neither will a USB port.

You can JUMP START the battery using a USB port by cutting off a USB cable to expost the red and black power USB PORT power pins 1 and 4. Remove your SMT-5600 battery and while the modified USB cable is plugged into your USB PORT, hold the BLACK wire to the negative (-) terminal and the RED wire to the positive (+) terminal for about a minute. Replace the battery in the phone and connect the phone to a USB PORT using a standard USB cable. The SMT-5600 charging light may not register for a while, but will eventually light amber to show it is charging, assuming your phone is recoginzed by your computer.

Note some mini USB cables DONOT carry the USB power leads through to the phone, only data. If you have a very thin USB cable, be suspicious the power leads are not being carried in the cable.

Since the USB PORT power is limited to 100ma it cannot hurt the battery, but will insert enough current into a totally flat batter to cause the battery to register a voltage large enough to alllow USB PORT charging, typically 3.7VDC.

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