I'm currently looking at external battery packs for phones/tablets/laptops and I saw the Anker Astro Pro2. I know Linus recommended it, so I decided to look further into it. I have a Lenovo Yoga 13 that I'd like to be able to charge with it. I know that the power tip is not included with the pack, but there are adapters available for purchase. The problem I ran into was the output of the battery pack. The specs state the max is 19V/3A, and the Yoga power adapter says it outputs 20v/3.25A. Does anyone have this battery pack that uses it with the Yoga? Or does anyone have electrical experience that could tell me whether or not it's likely to work? If not, maybe you could recommend a different battery pack with similar capacity that could power the Yoga?
Battery pack in question: http://www.amazon.com/20000mAh-Ultra-High-Multi-Voltage-Notebooks-Compatible/dp/B00B45EOYS/ref=sr_1_1?ie=UTF8&qid=1390526528&sr=8-1&keywords=power+bank+laptop\
Yoga power tip adapter: http://www.amazon.com/Connector-Converter-Thinkpad-Compatible-Ultrabook/dp/B00FYYOWVU/ref=sr_1_7?ie=UTF8&qid=1390526585&sr=8-7&keywords=lenovo+power+tip