Wasabi Power Dual Battery Charger for Nikon MH-26, MH-26aAK, EN-EL18, EN-EL18a, EN-EL18b (with Adapter for Canon LP-E4, LP-E4N) Charge up to 2 Nikon EN-EL18 / EN-EL18a / EN-EL18b batteries sequentially Includes 1 adapter for Wasabi Power LP-E4 / LP-E4N Smart LED indicates charging status and prevents overcharging; Calibration function also available AC Input: 100-240V; DC Input: 12.6V; Output: 25-30VA; Charging current: 1.2A Includes dual charger for Nikon EN-EL18, and one adapter Canon LP-E4. All items include 3-year manufacturer warranty