Sources: Eurekalert, Nature Communications
quote: Your laptop battery isn't really going to be much more useful if it lasts 40k cycles instead of 500.
quote: Tesla Motor Comp. (TSLA) rates its 245-mile (official range) Roadster at 400 guaranteed charge cycles (a 98k mile life) similar to the General Motors Comp. (GM) 40-mile (electric) range Chevy Volt, which offers 2,500 charge cycles (a 100K mile all electric range)
quote: A bit of a disclaimer on the most bold claim of 40,000 charge cycles, is that the battery was cycled at 17° C (62.6° F), much lower than car batteries or other designs operate at. The study admits:Even at a very high cycling rate of 83?C, two thirds of its maximum discharge capacity is observed.