Workshop Manuals Factory service & repair Alfa Romeo
01 General data and specifications02 Maintenance03 Diagnosis – checks04 Engine (1.6 and 2.0 Twin Spark)05 Clutch06 Gearbox (manual and Selespeed)07 Front axle08 Brakes, ABS and traction control09 Steering10 Suspension and wheels11 Heating, air conditioning and washers12 Electrical equipment13 Body14 Body panels and reinforcement15 Wiring diagrams16 Connectors and pin-outs17 Wiring harnesses18 Fault diagnosis19 Special tools
Alfa Romeo 147 Factory Service Manual (2000-2002)12 · Electrical equipment
12 · Electrical

Battery

Make
Alfa Romeo
Model
147 Factory Service Manual
Year
2000–2002
Section
Current generation lighting › Battery
Electrical equipmentBattery

BATTERY

The current generation system consists of:

  • the alternator;
  • the battery;
  • the recharging warning light in the instrument panel;
  • the ignition switch for the system connections.
BATTERY
  • 1 Cover
  • 2 Cap edge
  • 3 Positive plate
  • 4 Negative plate
  • 5 Separator
  • 6 Bridges
  • 7 Electrolyte
  • 8 Water gauge
  • 9 Negative pole
  • 10 Monobloc
  • 11 Maximum electrolyte level
  • 12 Minimum electrolyte level
  • 13 Cap

The main features of batteries used on new models are the mounting plates made from active materials produced through the calcium lead production technology which has replaced the older antimony- lead type.

This involves a mechanical stretching process for a continuous lead band to reach the final productio of a grille covered in lead oxides for the positive poles and metallic lead only for the negative poles, instead of the use of casting machines to

produce grilles for fusion.

The use of a material such as lead-calcium-tin alloy guarantees a considerable reduction in the electrolysis during the operation of the accumulator (dissociation of the water into its components of hydrogen and oxygen) where the gases can escape

resulting in reduced evaporation of the actual water with a drastic reduction in the maintenance required for this type of battery.

Battery electrical specifications:

  • Lead accumulator, low maintenance type.
  • Cover: EURODIN with ramp type sealing elements on cover; press-fit caps (one cap per element) with protection system against fluid penetration from the outside. Gas evacuation through caps with gas/liquid separation system
  • Cover seal: heat welding.
  • Attachment to the base: joined on four sides.
  • Poles: lead bushes produced through cold-pressing with sealing labyrinth in the press-work area on the cover.
  • Electrolyte level check: through the openings in the caps in the cover, checking the consistency between the indicator (dipstick) and the electrolyte level. The dipstick indicates the max. level allowed, therefore the electrolyte should just come

into contact with the lower end of the dipstick. The min. level is reached when the electrolyte exceeds the top end of the separators and/or plates by 10 mm.

  • Water gauge for checking min. electrolyte level and battery charge.
  • No. of plates: 6 positive + 5 negative.
  • Alloy grille: lead-calcium-tin.
  • Separator thickness: 1.15 mm.
  • Plate thickness: positive 1.80 mm; negative 1.60
  • Electrolyte density: 1280 ± 10 g/dm3 at 25°C with battery 100% charged.

Electrolyte density at 25° Celsius:

  • 1280 g/litre 100 % of charge
  • 1240 g/litre 75 % of charge
  • 1200 g/litre 50 % of charge
  • 1160 g/litre 25 % of charge
  • 1120 g/litre drained
  • 1110 g/litre totally drained.

Parts & tools for this job Staging For 2000 Alfa Romeo 147

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.