Can a 24V Battery Charge a 12V Battery?

[Gutierrez]

A 24V battery cannot charge a 12V battery, as it may damage the battery. Here are some precautions for battery charging: Timely Charging: The lifespan of a battery is generally calculated based on the number of complete charge-discharge cycles, measured when the battery capacity drops to 75% of its nominal capacity. This data is crucial because users typically do not charge the battery when it reaches 75% capacity but wait until it is no longer usable. By then, the battery capacity may have dropped to 40% of its nominal capacity, indicating over-discharge. Timely Water Refill: During the charging process, the battery may experience gas evolution, causing the distilled water in the electrolyte to gradually decrease and the sulfuric acid concentration in the electrolyte to increase. This accelerates corrosion of the battery's electrode plates and affects the battery's lifespan.