There is plenty to talk about when it comes to battery life and keeping your devices charged while on the go. At risk of stating the obvious, but this is one of those times when there never seems to be enough and where bigger seems to be better. The exception to that rule comes when the battery is large enough that it adds serious weight and size to the device. Anyway, the topic of batteries came up when we saw that Woot offering from last week, the one where they were offering the messenger and sling-style bags for $39. Basically, while trying to decide whether I needed to purchase the Powerbag, it got me to wondering -- how are most users keeping their device charged while out and about.