DD8 should be ready to use out of the pouch, no initial charging necessary. Just open and puff to your desired dose of elevation. In the event over time you suspect low battery, or the battery life has degraded recharge as necessary. The LED indicator light will continually blink to indicate a low or no charge. Your vape pen will also produce significantly less vapor or no vapor when your battery is low. To recharge your DD8 all-in-one pen, connect a micro USB to the built-in charge port on the bottom of the device. The LED light will glow when charging. 3 x flashing blue lights means the device can be unplugged a ready for use. Approx 30-minutes to full charge. No more worrying about disposable battery shelf life or oils going to waste - DD8 is good to the last drop. For further instructions or troubleshooting tips please contact us: hello@doseofchill.com