How Long To Charge Nikon Battery First Time. When charging the battery for the first time the device may indicate that charging is complete after just 10 or 15 minutes. Insert the AC wall adapter into the charger AC inlet.

They probably indicate a minimum of 2-3 hours for a first charge. 2 hours to fully recharge a completely exhausted. It take much less to charge a battery with more charge left.
I want to know how long do I leave it for for the best battery life later on.
An exhausted battery will fully charge in about two hours and 35 minutes. DIGITAL CAMERA ALKALINE BATTERIES OR LITHIUM ION. The sales person said first time 3 hours but Im not sure. The ambient temperature is not suited to charging.
