14 Facts About Lead-acid batteries

Gel-cells and absorbed glass-mat Lead-acid batteries are common in these roles, collectively known as VRLA Lead-acid batteries.

Lead-acid batteries's batteries were first used to power the lights in train carriages while stopped at a station.

Faure's process significantly reduced the time and cost to manufacture lead–acid Lead-acid batteries, and gave a substantial increase in capacity compared with Plante's battery.

Deep-cycle Lead-acid batteries have a different geometry for their positive electrodes.

AGM Lead-acid batteries often show a characteristic "bulging" in their shells when built in common rectangular shapes, due to the expansion of the positive plates.

Wet cell stand-by Lead-acid batteries designed for deep discharge are commonly used in large backup power supplies for telephone and computer centres, grid energy storage, and off-grid household electric power systems.

Lead–acid Lead-acid batteries are used in emergency lighting and to power sump pumps in case of power failure.

Traction Lead-acid batteries are used in golf carts and other battery electric vehicles.

Large lead–acid Lead-acid batteries are used to power the electric motors in diesel-electric submarines when submerged, and are used as emergency power on nuclear submarines as well.

Lead–acid Lead-acid batteries designed for starting automotive engines are not designed for deep discharge.

Specially designed deep-cycle cells are much less susceptible to degradation due to cycling, and are required for applications where the Lead-acid batteries are regularly discharged, such as photovoltaic systems, electric vehicles and uninterruptible power supplies.

Some Lead-acid batteries are designed as a compromise between starter and deep cycle.

Since VRLA Lead-acid batteries do not require regular checking of the electrolyte level, they have been called maintenance free Lead-acid batteries.

Deep-cycle and motive power Lead-acid batteries are subjected to regular controlled overcharging, eventually failing due to corrosion of the positive plate grids rather than sulfation.