Features:
Battery capacity: 380mah
Thread: 510 thread
Dia: 11.2mm length:82mm
Charge voltage: 4.2V
Protection: short circuit / overcharge/overtime
Button led light indication: 3.4V red, 3.7V green , 4.0V white light , Preheating Mix light
Preheating time: 15s
Five click on/off
Preheat esmart battery:
1) 5 clicks on/off
2) 3 clicks to adjust voltage
3) 2 clicks to preheat
Product show: