With all our portable gear running out of juice, what portable battery packs / chargers do you guys recommend? What's a good balance between charge capacity and weight? I have a small iGo wall charger that doubles as a battery pack but it doesn't hold much (1800mAh) and I've seen even bigger ones like this (http://www.amazon.com/New-Trent-iCruiser-IMP1000-Blackberry/dp/B003ZBZ64Q
) that seem too big. Thoughts?
) that seem too big. Thoughts?
