... burn taste , adjustment of output voltage from 3.2V-4.0v-4.8V.with a smart Buck-Boost converter inside new and ... to enable the adjustment of output voltage from 3.2V-4.0v-4.8V.with a smart Buck-Boost converter inside,you ... output voltage, intensified short circuit protection, discharge and overcharge protection, switch protection,atomizer protection, low voltage protection.The Battery also has ...