Mt Whitney Zone Forums General Discussion External battery pack

I play GPS app and Google map a lot on my phone. Then it comes with the problem of short battery life. I want an external battery pack, probably as large as 10000mAh, to keep my phone charged when on few days' trips. Do you have a good external battery pack?

Mophie makes both cases (with battery) and battery packs.
Another option is Goalzero. In addition to battery packs they also offer solar panels for charging "on th go"

I have an Anker 10,000 mAH battery and it does it's job well.

I find carrying it to be a bit heavy "8.5 ounces" mainly because my solar panel weighs 6.7 ounces but it's certainly nice to just plug in and get a full charge without worrying about the sun.

Hit ebay and you shall find many chargers for $25 and less that are 11,200mah. They work just fine, because all that stuff comes out of the same Chinese sweat shop towns your iPhone was made in.

Thank you guys. I've just ended up with the RAVPower 14000mAh.http://www.amazon.com/RAVPower-External-...=ravpower+14000 It's on promotion, the price is less expensive than Mophie and Anker. Amazon has good customer service that never let down by them. So I decided to give it a try. Can't wait to see it.