1)Suitable for 1- 4 pcs NiMH/NiCd AA/AAA,Li-ion/LiFePO4 18650 26650 battery                                                                            
2)Independent charging channel with LCD indication
3)Full protection for short-circuit  & over-temperature& overcharge                                                                         
4)Reverse polarity protection,will alert when place wrong polarity and battery voltage lower than 0.3V                          
5) CC CV charging & MCU control