| 摘要 |
Disclosed are an apparatus for charging a battery and a method thereof. The apparatus for charging a battery includes a sub battery sensor part which detects a charged state of a sub battery; a main battery sensor part which detects a charged state of a main battery connected in parallel to the sub battery, receives the charged state of the sub battery from the sub battery sensor part, and calculates the ratio of a charging amount of the sub battery with respect to the sum of the total capacity of the main battery and the total capacity of the sub battery to the sum of a charging amount of the main battery; and an ECU which generates a battery charging command based on the calculated ratio, and controls the charging of the sub battery and the main battery according to the generated battery charging command. |
