20V, 4.0Amp Battery and Charger ( BI20-4/C20-2 )

The charger is fit for Li-ion battery. Red on–Charging, Red flash–Defective battery, Green on–Fully charged, Green flash–Battery too hot/cold.

Features

• Constant current charging
• Cut-off voltage
• Turning light current
• Charging indication
• Charging efficiency (4Ah)
• Overcurrent Protection
• Output over-voltage protection
• Short circuit protection
• Reverse leakage current
• ESD protection
• Group pulse interference protection
• Surge shock protection

Technical Specs

• Working temperature : 0℃～45℃
• Storage ambient temperature : -25℃～60℃
• Input voltage range : AC 220V-240V 50Hz/60Hz
• Suitable for 18V battery pack (including charging protection function) : Maximum charging voltage：20.75±0.125V