Remember the Energizer Energi to Go, the battery charger that runs on AA batteries? Well, ever since the Energi came out, other manufacturers have been quick to jump on the portable charger bandwagon. Find the vast array of choices a little confusing? So did Gearlog, so they picked three and put them through the paces: the Energi to Go, the PlanOn Universal Mobile Charger and Power Traveler Power Monkey. I won't give away the ending, but let's just say I'm not too surprised on how the tests turned out.