312001337 - 5530B BATTERY AND LEADS
COMPOSITION
The present generation system includes:
- the alternator;
- the battery;
- the insufficient charge warning light in the instrument panel;
- the ignition switch for the system connections.
Battery
The main characteristics of the batteries used on new models are the active material support plates produced thanks to the calcium lead production technology that has replaced the older antimony lead one.This involves a mechanical stretching process with a continuous lead band resulting in the final production of the grid spread with lead oxide for the positives and metallic lead only for the negatives, rather than the use of casting machines for producing grids through fusion.The use of materials such as lead-calcium-tin alloy guarantees a considerable reduction of the phenomenon of electrolysis in the operation of the accumulator (dissociation of the water into its hydrogen and oxygen components, which can escape in their gaseous forms), thereby causing less water evaporation with a consequent drastic reduction in the maintenance required for this type of battery.
Battery electrical specifications:
- Reduced maintenance lead accumulator with acid.
- Cover: optimised, with holes for fitting positive terminal cover and closure for elements on cover by means of a removable press-fit stopper strip with a separate plug for each element. Plugs equipped with PTFE (polytetrafluoroethylene) diaphragm to retain acid vapours. External fluids anti-penetration system. Centralised gas evacuation, with side escape, fitted with flame arrester system.
- Cover sealing: thermowelding.
- Attachment to the base: standardized on four sides.
- Poles: lead bushes produced by cold pressing with seal in the pressing area on the cover.
- Electrolyte level check: via the openings in the cover plugs, checking the consistency between the indicator (dipstick) and the level of the electrolyte. The dipstick indicates the maximum permitted level, therefore the electrolyte should barely come into contact with the lower end of the dipstick. The minimum level is reached when the electrolyte exceeds the top of the separators and/or the plates by 10 mm.
Plug
In reduced maintenance type batteries with lead-calcium-tin elements the seal is guaranteed by pressure plugs with an anti-penetration system and a device that evacuates gases through the plugs themselves.The plug allows the escape of gases produced in the battery, but prevents the loss of liquid. The plug consists of:
- The plug body: this acts primarily as an obstacle to the liquids, but allows the escape of gases via special openings.
- The labyrinth: prevents the particles that are released during the operation of the battery from blocking the special diaphragm.
- The semi-permeable diaphragm: thanks to a special PTFE layer (polytetrafluoroethylene), this prevents the escape of the liquid but allows the gases that are produced during the normal operation of the battery to pass through.
