The TopoCharger is the first ever iPhone battery case with built-in topo maps. The TopoCharger holds gigabytes of outdoor maps so you don’t have to worry about maps using the memory on your iPhone. It comes pre-loaded with statewide topo maps that can be viewed in 18 zoom levels. The internal battery of the case also doubles the battery life of your iPhone so there won’t be a chance of a dead battery out in the woods. Set to Launch in June 2014.
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