Originally Posted by
KD5NRH
The Lezyne and others use plain LCDs that don't eat up so much power, but none of them specify a battery life.
Every model on the Lezyne website lists typical battery life.
The Super GPS states 24 hrs. but is the priciest.
I knew a guy who did a self-supported NYC to SF tour, used an iPhone to navigate, plus a solar cell pad on the rear panniers to charge a separate cell phone battery, then used the battery overnight to charge the iPhone.