This is a wildly inaccurate Particle Electron battery capacity calculator. You should only use this for the wildest of guesses for battery capacity, as there are so many variables the numbers generated here may not be close to accurate. Also, I may have made calculation errors. Be sure to run your own tests before making design decisions!
Results
Stop + Standby is stop mode sleep (pin + time) with SLEEP_NETWORK_STANDBY to keep the cellular modem active.
Deep sleep is SLEEP_MODE_DEEP. The cellular modem is turned off.