Evaluation of BB-248/U Lead Acid Battery during Charge-Discharge Cycles at Low Temperature.

Abstract

The behaviour of the lead-acid battery type BB-248/U has been studied during many consecutive charge-discharge cycles. The cranking current and the minimum terminal voltage were 285 A (or 300 A) and 6 V, respectively. The working temperature was successively room temperature, O C, -20 C and -40 C while the rechargeability period was only 2 hours. This work shows that such a rechargeability period - with a maximum charge current and an applied terminal voltage of 20 A and 14.25 V (or 16 V), respectively - is far too short to completely recharge the battery. Moreover, the rechargeability rate is only very slightly affected by the value of the maximum applied thermal voltage in the range of 14.25 V to 16 V. Finally, a significant decrease of reserve capacity measured at room temperature has been observed after many charge-discharge cycles at low temperatures. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA074845

Entities

People

  • G. R. L. Brossard
  • L. D. Gallop

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accumulators
  • Chemistry
  • Classification
  • Electrical Circuits
  • Energy
  • Exothermic Reactions
  • Lead Acid Batteries
  • Lead Dioxide
  • Low Temperature
  • Resistance
  • Security
  • Specific Gravity
  • Specific Heat
  • Standards
  • Terminals
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Thermal Physics or Thermal Science.