If you wanted to get a hold of Amazon’s Alexa virtual personal assistant on the cheap, you had not look farther than Amazon’s own Echo Dot, which gave you a squashed Echo for $50 only. Looks, however, can be deceiving. Despite the speaker’s diminutive size, it isn’t exactly portable, require you to plug it into a power source before you can use it. Battery maker Fremo, however, offers a fix: the Evo battery base for the 2nd gen Amazon Echo Dot. That is, if you’re willing to pay the same price as the Echo Dot itself.