inputs.text: power power - couple backup systems spend lot time remote areas without source power zagg sparq2 claim charge phone 4 times never best gotten 1 34 charges decided try new trent 1100 ah pack say works great past long weekend trail fully charged droid x 4 times unit still power spare 1880ah extended battery phone let use droid gps google maps far superior regular gps whenever needed wanted also no worries needed conserve battery since poor results zagg unit weighs little 12 storage took along well backup never use new trent pack earned place pack putting many miles coming months solar unit feel like never without \\juice\\ electronics need zagg ebay weekendupdatei going sell zagg unit ebay went charge second time prongs broke internally failed mention problem first zagg unit received replaced deal second one stay away sparq2 zagg impressed quality imp1000 bought second one carry extra long trips carry everyday remote jobs no power hookup