EDO Tech AC Power Adapter Wall Charger for Anker 2nd Gen Astro Pro2 20000mAh 4-Port External Battery Power Bank Quality backup/ replacement wall charging adapter for Anker second generation Astro Pro2 power bank. US standard switching adapter, 100~240V, 50/60Hz input, 12V 2000mA output FCC listed, RoHS compliant With heavy duty cable, approx cable length: 6-1/2' or 2M.