Laboratory results indicate that you could expect to see 2000 to 5000 cycles out of a well cared for Lithium Ion Phosphate battery bank. Both C-Rate and Depth of Discharge (DoD) affect expected lifespan. Some recent measurement shows that a LFP battery will still deliver more than 80% of it’s capacity after 2000 cycles at 100% DoD or even 5000 cycles at 65% DoD. All these tests are done at 1C-Rate Cycles.