ROCKET SV2 is the first two-bay Li-ion & Ni-MH fast-charging charger with 2A and compatible with D/32650 size. It only takes 1.5hrs to fully charge 2pcs 2500mAh batteries, 6hrs to fully charge 2pcs 10000mAh batteries (the other charger takes 12hrs). ROCKET also provides 4 charge currents for you to choose the suitable one to maximize battery life. Equipped with an innovative LCD screen and two slots fit all kinds of batteries including 10440 to 32650, AAAA to D size. - See more at: http://www.xtar.cc/products_detail/productId=151.html#sthash.YBOJySFe.dpuf