The charger (114) charges the battery (115).

The charging circuit takes incoming electricity and charges a capacitor bank.

According to the present invention, a wireless charging system is applied as a charging system for the cable-type secondary battery, thereby charging the battery in a convenient manner.

Au operational amplifier float charges the battery to the reference voltage.

The charging module charges the battery of the vehicle based on the charge control signal.

The solar panels charge the battery and also provide power to an electronic device.

A charging circuit recharges the boost battery from the main battery during operation of the motor.

When the external charging connector (91) is connected to the charging port (41), power from the external power supply (90) charges the battery, and the battery supplies the stored power to the electric motor (25).

In battery hold mode, the system conserves the available electrical energy, and charges the battery in battery charge mode.

In battery hold mode, the system stores the available electrical energy, and charges the battery in battery charge mode.

The charger (2011) charges the battery corresponding to the charging branch (201) when the switch (K1) in the charging branch (201) is closed.

A solar cell (S) charges the battery via a regulator (R).

However, if any charging circuit charges the battery faster than the current draw, then battery self-charging is possible.

A charge circuit charges the battery (110) by using the input voltage VIN from the external power source (210).

Disclosed is a battery charging system that includes a battery pack and a battery charging apparatus and that charges the battery using communication between the battery pack and the battery charging apparatus.