This year I didn’t have to worry about not being able to charge my electronic devices. Though I do ride with a team, electricity isn’t guaranteed and hasn’t been in my 22 RAGBRAI’s. Sometimes it is easy to find, sometimes it isn’t. It may also depend on how long you want to wait in line to get your turn. So this year I purchased an ISource power supply to recharge my Garmin, phone and MP3 player overnight while I slept. I gave it a full charge before going on RAGBRAI and it lasted the entire week without having to recharge it. It is about the size of a paperback book, weighs very little, and so packed easily in my tote for the week. It has 5 USB slots to charge devices. I highly recommend it.