The most common form of Sealed Ups Battery is for cars and trucks. Lead-acid batteries are also used in golf carts and electric cars. Essentially, every lead-acid battery works in the same way. They are also prone to the same type of degradation of the internal panels, called sulfation. Sulfuric acid batteries are the most common disease among waste batteries, but as long as the used lead-acid batteries are mechanically reliable, the sulfuric acid batteries can be recovered. If you have piles of "waste" lead-acid batteries in your garage and you don’t want to buy new lead-acid batteries for your particular project, then this article may be a good find for you, because desulfurization is here The method used is revolutionary and effective compared to the commonly used methods. Before desulfurization treatment, bad cells need to be identified first.

　　Identify bad cells:

　　Charge the battery for at least 12 hours in advance. After that, unplug the battery from the charger and let it stand for 10 minutes.

　　Open all battery covers. If you have sealed a lead-acid battery, search the Internet for a guide on how to open its lid.

　　Fill each compartment to the optimal water level. This is critical, because in future parts, sparks will be generated, and a column of hydrogen and oxygen in the air in the car will explode and blow the acid on your face. The higher the water level, the fewer explosive air columns, and the less likely an explosion will occur. Use the cutting torch to help observe the meniscus on the horizontal plane.

　　Measure the terminal voltage of the battery (12v). A fully charged Sealed 12v Battery must be within the range of 12v (approximately 11.8v to 13.0v). If your battery voltage is lower than 11.8v, the possibility of battery imbalance is high, and one of the batteries (one of the 6 batteries) has a problem.

　　Measure the voltage of each battery and determine the battery with the lower voltage. Connect the multimeter probe to one of the terminals, and then immerse the other probe in the battery solution. Continue along the cell hole. A good battery must have at least 2v. Remember bad batteries and note that since the non-conductive lead sulfate crystals will form a thick film, their plate color will be different from other battery plates.