Samsung Galaxy S6 and S6 Edge, ZeroLemon 3500mAh Additional Removable Replacement Powerpack Powerbank for Galaxy S6 and S6 Edge &ndash; must use ZeroLemon TPU Battery Case (sold separately)[180 days ZeroLemon Warranty Guarantee]-Black Swap out your current power Pack for additional power with this replacement power Pack Must use in conjunction with slim power soft shell TPU case cover sold separately 4 LED light to indicate charge level. Straight through charging to charge your Phone First before the power Pack Power Pack to Phone U shaped charge connector included Content: 3500Mah power Pack / power Pack to Phone U shaped charge connector