The article discusses the development of the maintenance-free (MF) car battery manufactured in the USA by AC-Delco and Gould, Inc. The MF battery is claimed to overcome the three principal deficiencies of the conventional battery - topping-up maintenance, poor shelf life and service deterioration. Instead of using plate grids with an antimony content of up to 7%, the mf battery uses calcium-lead plate grids and also incorporates a large acid reservoir. These features allow the battery to be stored in the charged state for long periods, and reduces "gassing" on full charge. The mf batteries are sealed and so do not allow topping up. Details are given of tests carried out on mf batteries in comparison with conventional antimony batteries. /TRRL/

  • Availability:
  • Corporate Authors:

    Institution of Mechanical Engineers

    1 Birdcage Walk
    London SW1H 9JJ,   England 
  • Authors:
    • Baker, A
  • Publication Date: 1977-10-11

Media Info

  • Features: Figures;
  • Pagination: p. 12-14
  • Serial:
    • Volume: 2
    • Issue Number: 5
    • Publisher: Institution of Mechanical Engineers
    • ISSN: 0307-6490

Subject/Index Terms

Filing Info

  • Accession Number: 00178631
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 27 1978 12:00AM