Charging device suitable for four-tandem lithium-ion battery

The utility model belongs to the technical field of lithium-ion battery charging, and discloses a charging device suitable for a four-tandem lithium-ion battery. The charging device suitable for the four-tandem lithium-ion battery comprises n packs of four-tandem lithium-ion batteries, an AC-DC switch power supply and a voltage-stabilizing circuit. The charging device also comprises a BQ2000 charging management chip, a charging drive circuit and a charging rectification circuit which are electrically connected in turn. The VCC end of the BQ2000 charging management chip is electrically connected with the output end of the voltage-stabilizing circuit. The output end of the charging rectification circuit is electrically connected with the multi-pack four-tandem lithium-ion batteries which are provided with a charging voltage detection circuit and a lithium-ion battery quantity detection circuit. The output end of the charging voltage detection circuit is electrically connected with the BAT end of the BQ2000 char