Portable Power Pack for TF700
I'm going on a 13 hour flight as well as will be travelling for 2 weeks around Japan so thought I'd nab one of those usb battery chargers that I can carry around with me for a recharge.
However due to the funky 12V 2A charging requirements all the ones on Amazon and ebay list that it won't work with the asus transformer series.
Anyone know of one that does work?
I recently had a 9hr + 2hr flight for a cruise and I was looking for the same thing. I ended up buying the Anker Astro3 10000mAh from Amazon
I found that the Infinity will last about 6 to 7 hours watching movies in HD from a microSD card just using the internal battery. The power-pack is good for one full charge of the TF700 battery, so it should keep you going for about 12 hours. When you add in eating, playing with the in-flight entertainment system, and short nap time, you should be all set.
I would recommend looking at a Airline Headphone Adapter as well and bring your own headphones. My flight had the old-style airplane jacks. We did get free earbuds but they were really bad and didn't fit well.
Here is the info from my product review:
I bought this to expand the run-time of a ASUS Transformer Infinity TF700 for a recent cruise trip.
The ASUS Infinity tablet has unique charging requirements. It will charge using USB, but it takes a very long time (about 10 hours). The OEM charger puts out 15V and will charge the tablet fully in about 2 hours, but no power pack supports this voltage. However, the ASUS Infinity also supports charging at 12V, which is available on the Astro3 10000mAh.
To use this with the ASUS Infinity you will need to connect several included connectors together and purchase a USB A FEMALE TO FEMALE adapter.
- Slide the DC power switch to 12v
- Use the included 5.5/2.1mm 2' cable to connect to the DC output port
- Connect the red tip adapter to the other end of the 5.5/2.1mm cable
- Connect the coiled USB cable to the red tip adapter
- Connect the USB A FEMALE TO FEMALE adapter to male USB A end of the coiled USB cable
- Connect the OEM ASUS Infinity USB cable to the other end of the USB A FEMALE TO FEMALE adapter
- Turn on the power pack by pressing on the power button
An alternative to buying a USB A FEMALE TO FEMALE adapter (and using the red tip adapter and USB coiled cable) is to:
- Find and buy a "USB A To DC 5.5/2.1mm Power Supply Extension Cable Cord Female 2.1". It has a DC Interface size: female 5.5*2.1mm and USB Interface: USB 2.0 female. (Note: This is not currently available on Amazon, I found this on eBay)
- This frees up the USB coiled adapter to be used with other USB devices.
The Astro3 10000mAh:
- will charge the ASUS Infinity fully once
- It takes about 2 hours to re-charge with the included DC adapter.
- It shuts itself off once there is no power draw (i.e. when your devices is fully charged)
- It is about the size and weight of a smartphone. As a result, it isn't as portable as it's smaller cousins, but it packs a lot of juice
Overall, this is a solid portable power pack.
