Originally Posted by
Salubrious
... Because of the water thing, a lot of racers on the TDR prefer the Etrex 30 since it can handle the same gpx files but doesn't have the touch screen. The downside is that it uses AA's but they are usually available almost anywhere; I'm really wondering if I can run it on a set of rechargable batteries and thus recharge from my solar battery. The Etrex is also inexpensive and is proven water/dust/vibration reliable.
I use eneloop rechargeable AAs in my etrex. A pair lasts a full 24 hour day or longer if you are judicious with the back light. You can get a USB AA charger to connect to your solar panel or dynamo hub. I still haven't found anything better than the etrex for basic navigation and unlimited run time.