Do you sometimes need extra battery life with your iPhone 4 and sometimes just need a case? The Third Rail System is the answer. It’s a slim iPhone 4 case that allows an external batter to be attached to the backside of your iPhone 4 when you need it. That’s the key; unlike other battery cases that add bulk by incorporating the battery into the case, the Third Rail System allows you to take it off whenever you like.

A few weeks ago, we heard the unfortunate news that Sanho, creators of HyperMac, were being forced to stop selling the MacBook charging cable that makes their HyperMac products so useful, as a result of a legal battle with Apple. Well, that day has come. Today is the last day you’ll be able to buy both the HyperMac battery and the MacBook charging cable that allows you to charge your MacBook, MacBook Pro or MacBook Air from the external battery.

Last call for anyone not satisfied with the battery life of their MacBook. Sanho Corporation has announced they’ll be ceasing sales of HyperMac MacBook charging cables and car adapters on November 2nd, 2010 as a result of their recent legal battle with Apple. You’ll still be able to purchase a HyperMac battery after the cut-off date, but you won’t be able to buy the cable that makes it useful for a MacBook.

Looking for an external battery that does more than just power up your iDevice? The Icon Power Pack is just the thing. It’s designed to look very similar to it’s digital equivalent—the battery icon in your iDevice’s upper right corner. But is this battery’s beauty more than skin deep? Unfortunately not; the Icon Power Pack seems to be more about looks than functionality.

HyperMac has taken two of the most useful accessories and combined them into one great portable product that can solve a lot of common problems at once. The HyperMac Stand combines a stand with a battery, and does so in as small of a package as possible. It’s not the best stand, nor is it the best external battery, but together, the portability makes up for any shortcomings. In this case, being a jack of all trades, master of none is desirable. It’s the perfect tool for a writers on the go.

Apple’s iPad gets close to 10 hours of battery life under normal usage. But what if that’s not enough? And on top of that, what if you don’t have access to a power outlet? Then there’s really only one solution: an external battery. HyperMac is here, once again, to save the day and increase your battery life with their newest external battery with iPad support.

Sanho Corp., makers of HyperMac batteries, has announced its refreshing the entire line of Hypermac external MacBook batteries with iPad support. The new batteries support charging of the iPad with a higher powered USB port than previous models. And just to make the update that much sweeter, they’ll start shipping in two weeks at a price tag $30 lower than before.

As your iDevice ages, you may find yourself needing a little extra battery life. Even brand new iDevices may have a hard time keeping up with your demanding lifestyle. Thankfully, you have many options for extending your mobile (un)productivity with an external battery. As such, it’s pretty hard for individual options to stand out among the sea of batteries, but Just Mobile’s Gum Plus Power Pack most certainly does. Designed to fit right in with your MacBook Pro, the Gum Plus Power Pack will keep you topped off for days in style.

What’s worse than seeing your MacBook’s battery dip below 10%? Seeing it hit zero? Okay, fair enough. But if this happens to you often, you need a solution. HyperMac has an entire line of batteries just for this purpose. And yes, they come with MagSafe connections. But even if you just have an iPhone or iPad, the HyperMac MBP-060 has you more than covered.

Even if your iPhone is brand new, its battery may not be enough to hold you over for a full day’s worth of music, Internet browsing and the like. For some of us, running out of power is just not an option. HyperMac’s new line of candy inspired batteries come is various shapes, sizes and flavors colors. Surely they have one that fits your style, needs and price range.