Ipod Shuffle won't fully charge???

I should mention that rather than turning green, it
is simply blinking orange constantly...

Guess what? IF it's blinking, it will NEVER turn green. Blinking orange means that it's either being accessed by a program (like iTunes) OR is being seen by the operating system as a (mounted) storage device. Go to the system tray and UNmount/eject it under "safely remove hardware"...

The fully charged green ONLY appears after charging with steady orange.

May I know whether you have been using the USB port ( Windows PC desktop) at the front of the computer or the ports at the back of the computer for charging the iPod?
Generally the USB Ports on the front of the computer are low powered USB 1.0 ports and the USB ports on the back of the computer are high powered USB 2.0 ports and it is recommended to connect the iPod shuffle in the high powered USB port.
The battery status light of the iPod is only approximate.
Though the green status light signifies good battery charge, the best way to decide the charge is to charge it for 4 to 5 hours and then continuously play it for about 10 hours. If the iPod plays for 10 hours then its good. Otherwise we need to service the iPod.
You can also go through the below article:
iPod shuffle (Second Generation): LED behavior after charging
http://docs.info.apple.com/article.html?artnum=304800
======================
The blinking amber light signifies that the iPod is communicating with your computer.
The steady amber (not blinking) light signifies that the iPod is charging and is not communicating with your computer at present.
For your information, the status light on the front part of your iPod shuffle must be blinking green for 3 seconds when the iPod is switched ON and should blink for a brief when the play/pause button is pressed. If this happen, then the iPod is working fine.
===================================

"Generally the USB Ports on the front of the computer are low powered USB 1.0 ports and the USB ports on the back of the computer are high powered USB 2.0 ports and it is recommended to connect the iPod shuffle in the high powered USB port."

Not on any computer I know of. Generally the rear ports are fully-powered USB 2.0 (if they have 2.0 and not 1.1.) and the front ports are slaves (which may have less than full power) but they are USB 2.0 if the rears are.

Why are you asking questions and answering a post that has been marked answered?

If you are charging your Shuffle from your CPU as opposed to a plugged charger you may encounter the problem cited.

I had this problem and charged it from a plug-in charger. I then received the green light.

I believe the problem that we encountered arises from the fact that the USB charging hasn't enough umph to push the charge to the point where the green light will come on. I expect that the shuffle after hours of charging is fully charged, just the last bit to effect the green light isn't there.

I think the analogy would be idiot lights in a car vs actual gauges. We just don't get the green light using a USB charge. Haad we a gauge, we would see the Shuffle is actually charged, presuming a long enough charge cycle.

On a related point. You should be aware that the batteries in the shuffle have a finite number of charges in them before they die. Therefore, it would be prudent to only charge the shuffle when it is necessary. i. e. let the battery run down before recharging.

I hope this helps.

Applepolisher