I don't charge everything before each ride, but these are the battery operated things I use on a ride.
Phone
Bluetooth earbuds
etap/di2
garmin
heart rate monitor
power meter
Some bikes also have a speed sensor, cadence sensor, and lights if necessary.
I might also bring along a gopro and usb power stick if it's a ride I want to record.
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Hey guys, lets go play bikes!
Strava
