Datasheet

reduce to amost nothing with proper sleep modes and not putting the module in active listen mode!

Here is a transmit with radio.setPowerLevel(0) to set +5dBm power

You still have the 25mA average, but during transmit, it only uses another 20mA not 100mA

If you put the radio to sleep after transmitting with radio.sleep(); rather than just sitting in receive mode, you can save

more current, after transmit is complete, the average current drops to ~10mA which is just for the microcontroller