Vehicle battery management in preparation for the 40 degree heat wave..It's important to check. You have to pay attention to the temperature of the battery

Jul 10, 2025

Photo courtesy : carguy(www.carguy.kr)



Korea & Company Co., Ltd., a business-type holding company of Korea & Company Group (Chairman Cho Hyun-beom), introduced vehicle battery inspection methods and management tips to prepare for the summer heat wave.

High-temperature and humid environments in summer reduce battery performance, increasing the risk of poor start-up or discharge accidents. In response, Korea & Company emphasized that it is important to check the condition of the battery and be familiar with the seasonal management method.

Signals indicating battery abnormalities include △start motor rotation weakening △ headlamp brightness change △claxon sound weakening, etc. Foreign substances around the terminals can interfere with current flow, so regular cleaning with a brush is recommended.




For MF (non-repairable) batteries, you can simply check the status through the 'indicator' color at the top. In general, green means normal, black means charging, and white means replacement time.

The life of a lead storage battery (secondary battery) for a vehicle is generally 2 to 3 years, but electrolyte evaporation and voltage instability may occur due to high temperatures in summer. To prevent this, routine management such as indoor parking and starting at least once a week when not running for a long time is necessary.

In addition, long-term use of the vehicle's electrical components while the engine is turned off can lower the battery voltage, which can shorten the life of the vehicle. In particular, since the black box is directly connected to the battery, it continuously consumes power and can lead to voltage drop when used for a long time. It is recommended to set the black box power saving state and maintain an appropriate voltage of 12.4V or higher for efficient battery use while parking.




The Idle Stop & Go (ISG) function is also designed to operate only when the battery voltage is above a certain level, so the function may be limited if the power consumption continues. In fact, Korea & Company explained that there is a steady stream of inquiries that ISG function does not work on vehicles that are always used by black boxes.

When replacing the battery, it is necessary to select a product that meets the required voltage and specifications for each vehicle. The 'Battery Search Service' on the official Korean battery website guides products suitable for vehicle manufacturers, vehicle models, and model years. In addition, the online platform "TStation Dotcom" of T'Station, a tire-centered automobile total service store, allows you to inquire about a suitable battery by entering a vehicle number.

Batteries are not just consumables, but parts that are directly connected to vehicle safety, especially in summer, and they require more careful management. "A simple inspection can reduce unnecessary replacements and increase driving stability," a Korea & Company official said.




Meanwhile, according to Chairman Cho Hyun-beom's global premium branding strategy, Korea & Company Group has been strengthening its branding by applying "Hankook" to battery products since last year, and is expanding global sales centering on high-performance AGM (Absorbent Glass Mat) batteries.





This article was translated by Naver AI translator.