Voted Best Answer
Apr 17, 2019 - 05:00 PM
That is how many hours of operation the cell is estimated to last - that works out to about 3 years or so for most people. That number let's you compare its lifespan to similar systems from other manufacturers. The replacement cell is about half the cost of the system, and then you should get another few years of use out of it (at significantly less cost!)
