Nikon MH-21 Quick Charger

Took about two hours to top off my EN-EL4a from dead, and the indicator light switching from amber to green is reassuringly simple. Solid little unit that does exactly what it's supposed to without any fuss.

Solid, reassuring heft to it, and the LED indicator lets you know exactly when your battery is topped off. It charged my EN-EL4a from dead to full while I was out shooting, which saved my afternoon.

Took about 90 minutes to fully charge my EN-EL4a, which feels exactly right for a high-capacity battery. The charging indicator is clear and easy to read from across the room.