IPod is not charging when docked.

http://www.everymac.com/systems/apple/ipod/specs/ipod-2nd-generation-nano-specs.html
USB Support:
Sync & Charge
Firewire Support:
Charge Only

Details:
The second generation iPod nano models are capable of charging and syncing by USB via the dock connector. It also can charge, but not sync via Firewire "400".

Connectivity:
USB
Ports:
Dock, Headphone*

Details:
Apple reports that this model provides "USB through dock connector."

*Ports include the "dock connector [and] stereo minijack".
http://www.bing.com/images/search?q=images+of+apple+ipod+usb+chargers+&qpvt=images+of+apple+ipod+usb+chargers+&FORM=IGRE - view=detail&id=9C41186E7131E6658B9324CCA

Maybe this could be the solution...
Source: http://www.speakerstation.co.uk/ipod-speaker-docks-ct-87.html
"...
Important Note: iPods released since Sept 2008 (e.g. Touch 2nd Gen, 4th Gen iPod Nano and iPod Classic 120 Gigabyte, iPhone 3g and onwards) have an updated dock connector that means older revisions of speaker dock may not be able to charge these newer models of iPod/iPhone. Older docks should play music from these newer models with no problem.
The problem with charging is due to Apple removing support for 12v (firewire) charging on these new models of iPod/iPhone. Only 5v (USB) charging is supported on these new models. ..."

Look at:
http://www.speakerstation.co.uk/ipod-speaker-docks-ct-87.html

"...
Important Note: iPods released since Sept 2008 (e.g. Touch 2nd Gen, 4th Gen iPod Nano and iPod Classic 120 Gigabyte, iPhone 3g and onwards) have an updated dock connector that means older revisions of speaker dock may not be able to charge these newer models of iPod/iPhone. Older docks should play music from these newer models with no problem.
The problem with charging is due to Apple removing support for 12v (firewire) charging on these new models of iPod/iPhone. Only 5v (USB) charging is supported on these new models.
..."

WHEN CONNECTED TO PC IT DISPLAYS OK TO DISCONNECT

Get one of these to sole your problem. ipod change their charging circuit I found one at Walmart in the ipod accessories section. Its called the Passport home dock adapter.
http://www.scosche.com/products/productID/1695

- this accessory supports charging for the iPhone 3G, iPod touch (Gen 2) and iPod nano (Gen4) with most iPod docking stations
- Snaps into any iPod universal dock and accepts universal dock adapters

It does that to my iPhone; if I want to charge I have to use a separate cable and run the audio into the aux. Defeats the whole purpose of a dock if you ask me, but I guess they never anticipated what they'd have to do to charge the new iPhone batteries back when they designed the pre-G3-phone docks.

Your docking stations support the previous generation nanos but not current. If you can, return the docks otherwise you'll have to fork over the cash for a new one.

Hi!

I would suggest that you by-pass any docking stations and connect it directly via usb charger as most ipods do. And also, try to update Itunes and your Ipod Nano software.


Thanks and good luck! =)

nano 4th does not support firewire anymore, best option is to bring your AJ300D back to where you bought it. Philips claim that nano 4th is supported is not true.

for some **** reason the new ipod nano (4th generation) does not support FireWire and therefore will not charge on any docking station that is a FireWire power sorce - which seems to be most of them out there!
have same problem so will end up charging from computer as docking station still plays the new nano, no point in buying new docking station just for sake of charging!