1. Charging cigarette battery by PCC after the electronic cigarette battery is plugged into PCC and lid closed, the power of cigarette battery and PCC will be automatically checked.
2. When charging PCC through USB line, indicator will flash when charging. All three bars on, it means PCC is fully charged.
3. When charging the cigarette battery and PCC simultaneously through external power, under the condition that both PCC and cigarette battery are fully charged, the indicator will turn off after five seconds on.
4. Indicator flashes when PCC charges the cigarette battery, it shows PCC voltage is below 3.2V and needs recharging.