When the battery capacity of the Bamboo Stylus fineline reaches about 15%, the LED starts to blink red and you will need to recharge.
1. Remove the cap at the top end of the stylus.
2. Insert the USB cable included in the sales box and connect it to a computer or USB charger. It takes about one hour to recharge to 80% capacity. To reach 100% capacity, you may need about two hours of recharging.