Average Reviews:
(More customer reviews)I was very disappointed. Using 4 fresh Energizer alkaline batteries, the NUVI was confused. The power output from the batteries was just below the threshold where the NUVI thought the external power source was disconnected and asked if it should shutdown. Before I could tell the NUVI not to shutdown it would flash back to the map where it would all start again. Using four lithium ion batteries this was not a problem, they worked for about an hour.
Click Here to see more reviews about: Portable Emergency AA Battery Charge Extender for the Garmin Nuvi 775T - uses Gomadic TipExchange Technology
Whether youre an international executive or an ultra marathoner; this lightweight power solution is the perfect embodiment of minimalist mobility; offering nomads the ability to truly break the chains that bind them to their workstations. Compatible with Gomadics revolutionary TipExchange Technology that enables utility with hundreds of mobile devices; the Cavalry Pack is a necessary component to the toolbox of any truly prepared professional.In addition; this product; like all Gomadic products; is backed by a lifetime warranty.