As I’m sure everyone on the planet knows, the iPhone 5 comes out this week. If you are a heavy iPhone user you no doubt have some sort of a battery like our favorite, the Mophie for your iPhone. With the iPhone 5 release and the new Lightning connector, these old devices won’t work. And Mophie and others don’t yet have Lightning and iPhone 5 compatible devices available. We’ve found a solution, and have also found a great deal for you.

New Trent makes some of our favorite external batteries for recharging all kinds of USB connected devices. The IMP 120D is a massive 12,000mAh at about 1 1/2 the size of a deck of cards. That’s enough to recharge the iPhone 5 multiple times. It is a USB charger — meaning that you plug in a USB cable into the battery and then connect that to your device to charge it. So it works with a wide variety of devices. We’ve used our with iPhones, iPads, other phones, even digital cameras.

We got an email about a special deal from New Trent and Amazon.com, if you buy the New Trent IMP 120D, and use coupon code 3IMIRROR on Amazon, you get a second, slimmer 6,000mAh battery ($40 value) for free. Here’s how to do it:

Add the IMP 120D to your Amazon cart from this link: New Trent IMP 120D

Add the iMirror, 6,000mAh battery to your Amazon cart: New Trent iMirror

Go to your cart on Amazon and enter promo code: 3IMIRROR and the price of the iMirror will be discounted to $0! One note – we have no idea how long this deal will last. If this looks good to you, buy it quickly.

Now when you get the batteries, just plug in the Lightning USB cable you got with your iPhone 5 and you are all set to recharge on the go.

The Mophie Juice Pack PRO is a big, rubberized, super protective case that provides military-grade sand and dust protection, light splash and rain protection, and impact protection in a huge, can-barely-fit-in-a-pocket case that includes its own belt clip.

I’ve long been a fan of the Mophie line of products, enjoying their minimalist design and higher-end battery charge capabilities in an integrated case. The Juice Pack Pro also promises 150 percent extra battery charge, but what that number refers to is not clear, as I got about as much extra charge from the Juice Pack PRO during my testing as I do from my original Juice Pack Plus. Both need to be recharged after about one to one and a half full iPhone 4 battery charges with regular usage.

The Juice Pack Pro does seem pretty sturdy, though. The ports are covered with heavy duty rubber, which also acts as a shock or drop protector. The included belt clip is sturdy, and the encased iPhone snaps into it solidly, without a worry that it’ll drop out in the out of doors. The entire case snaps around the iPhone 4 or 4S like an Otterbox, a competing rugged case that does not include a battery pack. With a case this rugged, though, I kind of expect much more water-proofing, a lack that mophie actually has to point out in the included manual. If they have to point it out, it’s an obvious lack.

I took the case camping with me and it did very well, though I would love to have had an extra iPhone charge for my last day. Some lint and dirt did get under the top screen protector plastic, therefore getting stuck between it and the iPhone screen proper. In addition, the extra plastic film takes some getting used to and did hamper easy selection of icons at times.

Ultimately, whether a purchase is warranted will come down to preference. If there’s a need for a rugged, solidly built iPhone case that includes a battery pack, the Mophie Juice Pack Pro is the way to go. The case is too big for everyday use, however, and the battery pack doesn’t provide any more life than the $30 less expensive Juice Pack Plus (these names are confusing!). The case is extremely difficult to take off and on, so once the iPhone is in, it’s staying there.