The one I've used that I found fairly reliable are the Pebble version, however I was recommended the TeckNet iEP392 12000mAh battery that's cheap in Amazon by a passing cyclotourist at work.
@edscoble started
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The one I've used that I found fairly reliable are the Pebble version, however I was recommended the TeckNet iEP392 12000mAh battery that's cheap in Amazon by a passing cyclotourist at work.