How is the battery charged?

[DeOlive]

The charging method of the battery: Connect the positive terminal of the battery to the positive terminal of the power supply, and the negative terminal of the battery to the negative terminal of the power supply. Then, the initial charging is carried out in two stages: First, charge with the initial charging current until the electrolyte releases bubbles and the single-cell voltage rises to 2.3 to 2.4V. Then, reduce the current to half of the initial charging current and continue charging until the electrolyte releases intense bubbles and the voltage remains stable for 3 consecutive hours. The total charging time is about 45 to 65 hours. During the charging process, the temperature of the electrolyte should be frequently measured. Use methods such as halving the current, stopping charging, or cooling to control the temperature between 35 to 40 degrees Celsius. If the specific gravity of the electrolyte does not meet the requirements after the initial charging is completed, adjust it with distilled water or electrolyte with a specific gravity of 1.4. After adjustment, charge for another 2 hours until the specific gravity meets the requirements.

[OFernando]

When it comes to charging the car battery, I've been driving for several years and often encountered situations where I forgot to turn off the lights, leading to a drained battery. I only understood the process later. Basically, when you start the car engine, it drives the alternator to rotate—it's like a mini generator. It produces electric current, which then flows smoothly into the positive and negative terminals of the battery after being regulated by the controller. During this process, the acid and lead plates inside the battery react, converting electrical energy into chemical energy for storage. If the battery is dead, be careful not to use the wrong charger, as overcharging can cause an explosion. I recommend driving more on highways during regular use, as the engine runs more efficiently, improving charging performance. Additionally, if the car sits idle for too long, like a week without use, the battery may lose charge. In such cases, you can use an external power bank or jumper cables connected to another car for a quick charge—just make sure not to reverse the polarity. Remember to ensure proper ventilation while charging, as battery fumes are toxic. Regularly check the battery fluid level, as an old battery may degrade over time and need replacement, which can save you both hassle and money.

[DelAlejandro]

Hey, as a young enthusiast who loves car modifications, I find battery charging super interesting! When the car engine starts, the alternator inside turns into a power plant, generating alternating current (AC) as it spins. But since the battery can only store direct current (DC), a little device called the voltage regulator steps in to convert it into stable current to feed the battery. During charging, the current flows from the positive terminal to the negative terminal, while the chemicals inside the battery quietly store energy. For DIY charging, I prefer using a smart charger—it senses the voltage and stops automatically to avoid overcharging or damaging the battery. When driving daily, if you turn on power-hungry accessories like the AC or stereo, the alternator works harder to recharge the battery faster. But don’t push it too hard—saving fuel is eco-friendly! Once, I forgot to charge the battery after parking, and it drained overnight—a lesson learned. Adding a battery monitor during modifications is super handy—it lets you check the charge level anytime to avoid getting stranded. Also, be careful not to charge in damp conditions to prevent short circuits or fires. The charging process is simple and easy to master, and understanding it can keep your car youthful!

[SanJudah]

With over a decade of driving experience, safety always comes first, and battery charging is no exception. Charging primarily occurs while the vehicle is running: once the engine starts, the alternator generates electricity, which flows to the battery for storage. Avoid frequent short trips with repeated engine starts and stops, as this can lead to incomplete charging and unnecessary power drain. For external charging, use professional equipment to connect the positive and negative terminals, but always wear insulated gloves to prevent electric shock. The key to safety is avoiding overcharging, as excessive voltage can damage the battery, cause bubbling, or even lead to explosions. Regularly check the battery's age, as older batteries may not hold a charge effectively. Always charge in an open, well-ventilated area. In emergencies, such as a dead battery, stay calm—pull over safely and contact roadside assistance or use jumper cables to restart. Maintaining a healthy charging system ensures proper nighttime lighting and engine performance—never overlook it.