What are the characteristics of maintenance-free batteries?
2 Answers
Maintenance-free batteries are characterized by not needing to add distilled water or adjust the electrolyte concentration. They are fully sealed, so there is generally no electrolyte leakage onto the battery surface. Maintenance is simple, mainly involving checking for leaks, cleaning surface dirt, treating oxides on the positive and negative terminals, tightening the terminal clamps, and observing the color of the battery's indicator eye. Below is an introduction to maintenance-free batteries: 1. The indicator eye shows green when the battery is fully charged; black indicates insufficient charge and requires recharging; gray or light yellow means the electrolyte is insufficient. Since maintenance-free batteries cannot be refilled, the battery should be replaced immediately. 2. For cars that are not used for a long time, the vehicle should be started approximately every 25 days and run at medium speed for about 20 minutes using the hand throttle. Otherwise, if left unused for too long, the battery's self-discharge can lead to severe sulfation of the plates due to power loss, making it impossible to start the car when needed.
As an experienced driver who frequently drives, I particularly appreciate the convenience of maintenance-free batteries. The biggest feature is their completely sealed design, eliminating the need to periodically add distilled water like with old-style batteries, saving a lot of hassle. I remember having to open the lid every few months to check the fluid level before, but now it's plug-and-play, a one-time solution. The lifespan is also quite long, typically lasting five to seven years, and it never fails to start the car in winter, reducing the risk of breakdowns. Installation is easy too, something you can do yourself without needing a professional technician. Less maintenance means saving both time and money, making it the perfect choice for me. Additionally, its leak-proof design protects the engine parts from acid corrosion, which is especially important in humid areas. In short, maintenance-free batteries make driving more worry-free and efficient.
