Originally Posted by
krobinson103
I've done similar with endomondo and an android phone. Battery is always the limiter. Even with an external charger getting 12 hours plus is a challenge. I switched to a garmin etrex and battery problems are no more (aa).
My old Garmin Edge would only last about 8 hours with a full charge, so I had to have an external battery with it also.
With the 6000mAh, which will charge the iPhone 5S 3 times, so I could get 12 hrs pretty easy. And the 6000mAh is a smaller one. It would add a few more ounces but one could easily get a 12000mAh external charger. I myself have never been on the bike for more than 8.5 hours so this def meets my needs.
To add further based on my experience, I started out with an iPhone 4S with the Wahoo ANT+ case and extra Wahoo battery. It worked fine, but it was aggravating to take the iPhone out of my Otterbox Defender case and put in the Wahoo. The Wahoo also made the touch screen less sensitive. When I bought my iPhone 5S, I decided then to not use the Wahoo case and go with the Life Proof case with bicycle mount. With this setup I had to buy bluetooth sensors for HR, Cadence, Speed.
One reason I went with ANT+ at first is I already had a HR sensor from my old Garmin that was ANT+. Hindsight being 20/20 and all that jazz, I should have went with bluetooth sensors in the beginning and the lifeproof case and mount. But that's ok, I'm glad to share my experiences to help others.