Just pop the light in this Pelican Charging Base for the 3765 Flashlight and you'll have a full charge in 3.5 hours. A red LED indicator light on the base will be solid red when it is plugged in, blinks when charging and changes to green when the battery is fully charged. It will charge the battery pack in 3.5 hours. The AC adapter is sold separately.
Note: The Pelican 220V Transformer for 3765 Flashlight Charger Base is required to use this product. It can be purchased from the following link:
https://www.rubbermonkey.co.nz/Pelican-220V-Transformer-for-3765-Flashlight-Charger-Base/
