Want a great battery pack for your phone? Even better, do you want to get one for the super-low price of just $8.99? Droid Life brings us word that eBay is having a deal on the Motorola 3,000mAh Power Pack on Friday that will cut its price all the way down from $50 to just under $9. Even better, if you feel like getting a two-pack of these battery packs, you can get them for just $14.99 on Friday.

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Why should you take advantage of this deal? Because as Droid Life explains, they’re incredibly helpful to have during travel.

“After spending another week at CES, I once again am so thankful for having [power packs] with me,” Droid Life writes. “There are times that you just can’t get to an outlet to get some juice in your back-up phone that’s about to die before 8 p.m. Some times, you need some help that doesn’t involve a socket in a wall.”

Go take advantage of this amazing deal right now by clicking the eBay link in the source section below.