I use CR2450
unfortunately, the Advanced Energy Monitoring feature on the starter kits do not support measuring current consumption when powering the MCU from a battery. You will need to select 'AEM' as the power source to be able to do current consumption measurements in the Energy Profiler (the exception being the STK3400 Happy Gecko starter kit, which also supports measuring the current consumption when powering the MCU from its own USB interface).
sorry I didn't explain right.
My question was how can I change the batterie in the simulation ?
So I can see how my program works with an other cell.