The difference between maintenance-free batteries and standard batteries lies in:
1. Varying service life
Maintenance-free rechargeable lithium batteries, thanks to their structural advantages, require minimal electrolyte usage, with most not needing to be refilled with mineral water throughout their lifespan. They also feature shock resistance, high-temperature tolerance, compact size, and a longer lifespan than standard rechargeable batteries, typically twice as long.
2. The raw materials differ; traditional lead-acid batteries are produced using Wu De alloy, while maintenance-free lead-acid batteries are made from lead-calcium-aluminum alloy profiles. The former uses antimony, and the latter uses calcium, which is the fundamental distinction between the two.
3. Different raw materials can lead to varying situations: traditional batteries can cause liquid loss during use, which is due to antimony on the grid frame polluting the honeycomb pure lead on the negative plate, weakening the self-inducing electromotive force inside the battery after full charging, resulting in excessive water evaporation. Many oxygen and harmful substances escape from the positive and negative plates, reducing the electrolyte. Replacing antimony with calcium can alter the self-inducing electromotive force of the battery after full charging, decrease overcharging currents, slow down the rate of liquid vaporization, and thus reduce electrolyte damage.
In comparison to traditional batteries, maintenance-free batteries do not require additional liquids, have reduced cable terminal and cable corrosion, exhibit strong overcharge resistance, operate with higher total current, and offer longer energy storage time.
