The ibattz is equipped with two removable and replaceable 3,000 mAh batteries, for a total capacity of 6,000 mAh. Each one of the batteries has enough juice to charge an iPhone 6 Plus or 6s Plus about 70 percent of the way, so combined, there's enough power to keep an iPhone going for a couple of days.
With two batteries in the Invictus Refuel case, it's quite heavy, but we didn't think the case itself was too bulky considering it's housing multiple batteries. There's a power button at the bottom of the case with LEDs for each battery, so you can get an idea of how much battery is left at a glance. The case itself recharges using micro-USB.
We liked the power this case provided, but we weren't a fan of the construction of the case itself. The materials felt a bit cheap and we were worried we'd break it putting it on the iPhone. The bulk of the phone also rendered the mute switch unusable due to a faulty mute switch on the case itself, so this is probably a case most users are going to want to pass on.
The Mojo Refuel Invictus for the iPhone 6 Plus and iPhone 6s Plus is available from the ibattz website for $129.95.
Note: MacRumors received no compensation for this review.