How does this case compare with Otterbox Defender as far as protection of the screen, dropping the phone a lot, and cosmetic damage?

I just received a replacement because I dropped my previous 5s and cracked the screen in a million pieces. The defender case seems to do a good job. Does this product (duracell powercase) provide similar protection against drops, nicks, etc., while also extending battery life?

Duracell PowerCase and PowerMat Wireless Charging Pad for iPhone 5/5s

Duracell PowerCase and PowerMat Wireless Charging Pad for iPhone 5/5s

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