There are two ways to explain this question:
1) how many charge cycles will Omnicharge have before it no longer holds its maximum capacity?
2) how many charge cycles will Omnicharge have before it's completely depleted and needs to be serviced or recycled?
The answer to the first question: Zero. Omnicharge loses its maximum capacity immediately after use. Even equipped with our patented smart battery management system which actively manages the health and life cycle of each battery cell, we Omnicharge still can not stop the nature of lithium-ion chemistry: it starts depletion at the very beginning of its lifetime. See the cycle characteristics of NCR18650GA (the one Omnicharge is using right now) below, after 500 cycles it can hold around 70% of original capacity. And that's also the case with the Omni 13(13600mAh). After 500 cycles it will become 9520mAh and Omni 20 will become 14280mAh.
Above: Cycle characteristics of NCR18650GA lithium-ion battery cell from Panasonic
And the answer to the second question: a few thousands cycles! Again see the cycle characteristics above, the depletion rate slows down as the number of cycle increases, which means even after few thousands of cycles (many years of use) Omnicharge can still hold some capacity and work normally.