The Omni Ultimate provides a charging experience unlike any other. Taking the best from all Omnicharge products, the Omni Ultimate brings you an unparalleled feature set and a capacity that can charge all your portable devices. This interchangeable battery system allows you to replace the batteries once they are depleted. Powering your adventures for years to come. With a spare battery charging module, you can recharge your spare battery outside of the Omni Ultimate.