Carefully take the tracker off the bottle. There is a socket for the USB connector on the top of the tracker capsule.
For recharging the battery using a micro B type USB cable only (included in the box). Take off the safety silicone plug that is covering the connector on the tracker.
Connect the cable with the tracker while it is detached from the bottle.
Once the battery is full, attach the safety silicone plug back on and put the tracker back to the bottom of the bottle. Double tap the bottle – the tracker will glow if the battery is successfully recharged.