Storage battery charging protector

The utility model discloses a storage battery charging protector, including resistance R5, diode D3, triode VT3, one -way silicon controlled rectifier VS3, emitting diode LED3 and rectifier bridge Q, 220V alternating current one end is connected to rectifier bridge Q pin 2, the 220V alternating current other end is connecting resistance R8 and electric capacity C5 respectively, the electric capacity C5 other end is the connecting resistance R8 other end and rectifier bridge Q pin 4 respectively, ground connection diode D3 negative pole is connected respectively to rectifier bridge Q pin 1, grounded capacitance C3, triode VT3 collecting electrode and resistance R7. The utility model discloses storage battery charging protector can prevent effectively that the battery from crossing and fill that circuit structure is simple, and is with low costs, small, does not adopt any chip element moreover, and stability is high, and the interference killing feature is strong, especially adapted using widely.