My Iphone 4s has terrible battery life. I needed a good battery case but was reluctant to spend $80 for the new Mophie Cases. I also was reluctant to buy a knockoff case, so when I found this case refurbished her I jumped on it. The cost was 1/3 of the new price but when it arrived I could swear it was new. Slid my phone into the case and now I have battery power for all day and all night. By the way, shipping was amazingly fast (USPS)

It does add noticeable bulk to the phone which does take some getting used to but it adds very little weight.

Overall I am very happy with this case (Posted on 3/17/13)

This Juice Pack has been a life saver as I use my iPhone for business all day. I hope the Apple improves the battery life but until then Mophie is my hero.

Not only the battery boost but my iPhone is safe and secure in the case. The iPhone is so sleek that it is hard to hold but the Mophie makes it easier to handle.

I can't praise this product enough! I would give it more stars if that were possible. (Posted on 3/9/13)

When the case arrived, it was clearly *used*, not refurbished. There were chips and scratches all over the place, as if it had been used for a while. Customer service was awesome, though, and immediately sent me a replacement and and RMA shipping label. The replacement they sent was in perfect shape. Basing my five-star review on the final one I got, not the first one.

As for the case itself, it does what it says and is nicely made. Adds a lot of bulk, but that's just the nature of a battery case. Definitely worth the money if you need some extra runtime and don't mind having a bigger phone. (Posted on 3/9/13)

this is an awesome case! it fully protects my 4s, it keeps it fully charged throughout the day and even at high usage I still have over 50% battery remaining, which means my battery life is going to be extended.

it looks and feels good and arrived in perfect condition.

highly recommend, (Posted on 2/27/13)

If you don't normally like cases on your iPhone, you really won't want to use this. The case is bulky. I just put it in my backpack/briefcase/suitcoat and attached it to my phone when it's running out of juice.

The great thing, this case keeps it's power for over a week.

This is my first battery case, so I can't compare it to anything, but it's a nice backup. (Posted on 2/27/13)

I've used Mophie Juice Packs since my first iPhone which was the 3Gs. As one who uses his phone for audio and video recording, it's essential that my phone stays on for up to and beyond 8 hours of heavy use. The Juice Pak provides that and then some! The special price on the refurbished model was a no brainer for my iPhone 4. (Posted on 2/26/13)

Thus is my second Mophie. I use my iPhone all day, and need the battery extender. And while the condition of this used unit was great, as was the price, the charge does not last as long as my original. I barely get to a full day's use, whereas with my prior, I could easily get a day plus. (Posted on 2/26/13)

Ordered for my mom for her birthday .. she loved it. I have one as well and love mine too. (Posted on 2/21/13)

It fits great, feels good in my hand--makes it a tad heavier but no so much it matters. Thus far it has worked fine. I don't often need it but when I do it's there (Posted on 1/25/13)

I bought this for a gift and it was excellent considering the price. The box was a *slightly* beat up retail box, but everything else was indistinguishable from a new Mophie case. At $30, it's a great deal, but as a daily deal at $20 it is screaming deal. I am very satisfied! (Posted on 12/26/12)

Product works fine. Did not realize it was used/refurbished so it has scratches around the exterior. It seems to not affect the functionality of the product. (Posted on 12/19/12)

I am pleasantly surprised by the product. Got it on special for $20 and it gives me a 2nd full charge on long trips. Works great. (Posted on 12/18/12)

When i saw these on sale for $19.95 i had to buy 2.They are refurbished but when i opened the boxes they looked like new and they have the same warranty.My daughter has an iPhone so i told her about it and gave her one.she was blown away when i told her about the price.I would highly recommend them if you have an iPhone.I would also recommend ALL4CELLULAR for for your cellular phone needs.They have the best prices and fast delivery. (Posted on 12/18/12)

Five stars (Posted on 12/18/12)

The unit works well for the iPhone 4. The sound / vibrate switch does not align properly if you have the 4s. All other features work well and it is a good value for the price. (Posted on 12/2/12)

best of best (Posted on 10/24/12)