Power Magic Expansion Battery (B-124E) $269.99 Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. More than double your Ultra Battery capacity The Power Magic Expansion Battery (B-124E) more than doubles the capacity of your Power Magic Ultra Battery.You can even add more than one expansion in sequence. Compatible with Power Magic Ultra Battery (B-124 and B-124X models)