The Pro's adapter?

Can I use the new unibody Macbook Pro's power adapter for charging my older white macbooks battery?

Yes the Yoga 3 Pro power adapter is a USB charger too!
How does it work?
The special "fool proof" charging cord has two extra pins on the AC adapter end and two extra pins on the Yoga 3 Pro end. The extra pins only make a connection when the fool proof cord is plugged in to the Lenovo charger and the Yoga 3 Pro. When a regular USB cord is plugged into either the charger or the Yoga 3 Pro, it makes a regular USB connection.
Can I charge the Yoga 3 Pro with any USB charger?
No. The Yoga 3 Pro requires 2A at 20V, which is what the provided 40W Lenovo AC adapter supplies.
Can I charge a USB device with the Yoga 3 Pro AC adapter?
Absolutely. In addition to 2A at 20, the Yoga 3 Pro AC adapter supplies 2A at 5.2V (10.4W), enough to charge a phone or tablet. Works for iPad.
Where can I buy spare AC adapters and cords?
AC adapters with cords are sold in the accessories section of the Lenovo store.
Where do I find the part numbers for the AC adapter and cord?
Look for AC Adapters In the PDF Yoga 3 Pro Hardware Maintenance Manual.
What are the USB specs of the Yoga 3 charging port?
It's a USB 2.0 port. It provides enough power to charge an iPhone, but not enough to charge an iPad. If you want to charge an iPad, try the USB 3.0 port on the right of the Yoga 3 Pro.
The Yoga 3 Pro power cable connectors compared with a regular USB connector:
I don't work for Lenovo. I'm a crazy volunteer!

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    Yes the Yoga 3 Pro power adapter is a USB charger too!
    How does it work?
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