The Nikon MH-24 Quick Charger for the EN-EL14a (and EN-EL14) battery.
The MH-24 charges the EN-EL14a battery in approximately 1 hour 50 minutes. The charge light blinks when the battery is charging and stays a solid light when charge is complete.
Input voltage: 100-240V 50-60Hz AC Max 0.2A
Output voltage: ~8.4V DC 0.9A
Nikon Product Number: 27019
Suggested retail price: $69.95