Reddit reviews EnerPlex Surfr Ultra Slim Battery Backup & Solar Powered Case for Samsung Galaxy SIII, White, SFG-2100-WH

Battery pack can be charged by either a conventional wall charger or the integrated solar panel on the back of the caseFeatures a 2,100 mAh battery packBattery and solar charging indicatorSlim, yet durable design; 16.7mm thickProtective case defends your phone against bumps and scratchesUltra Slim case with integrated 2100 mAh batter wich provides 100% more battery lifeIntegrated solar panel provides emergency energy. 30 minutes of sun produces a 5 minute phone callSlimmest and lightest battery case with integrated solar that provides robust protection for your deviceCharge and sync via Micro-USB with smart charge feature wich charges your phone before the caseLED lights indicate battery life of case and when phone is charging via solar