The NCA 18650 battery is used widely and has a nominal voltage of 3.7 volts, 3.5 ampere-hours (Ah) and 12.95 watt-hours (Wh). A single 18650 battery cell can be found as the power source for ...
French researchers have announced a prototype of an 18650 sodium-ion battery ... However, they are quoting a 90 Wh/kg energy density and over 2,000 recharge cycle life span.