Seido has announced the release of two new external battery cases for the iPhone 4/4s. Both these cases feature a replaceable 1700mAh battery pack that allows users to swap in a fresh battery pack for those long trips away from a charging source. First we have the SURFACE Plus case, this case was designed to be slim and sleek while still protecting your precious phone. The case is available in black, blue, red, and purple and is priced at $69.95 for just the case or $89.95 for the SURFACE Plus bundle that adds a felt lined swiveling holster. If you plan on putting your iPhone through a beating, the CONVERT Plus case has you covered. The CONVERT Plus starts with a SURFACE Plus case then adds an optional layer of silicone for shock protection, an optional plastic skeleton to reinforce the case, and a screen shield. In addition the CONVERT Plus holster is added in the combo, providing a locking and swiveling holster that will fit belts up to two inches wide. The CONVERT Plus Combo is available for $89.99.
In case you plan on carrying your CONVERT Plus case in a holster without the silicone layer and plastic skeleton, the CONVERT Plus Value Pack adds a SURFACE Plus holster to the bundle for $99.95. If you’re not ready to make the leap to a CONVERT Plus Combo but like the idea, Seidio offers a CONVERT Plus Add-on kit that will allow you to upgrade your SURFACE Plus for $29.95. External battery cases has never been this flexible!