Evaluation of BB-248/U lead acid battery during charge--discharge cycles at low temperature. Technical note. [-20 to -40/sup 0/C]
The behavior 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 recharge the battery completely. 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.
- Research Organization:
- Defence Research Establishment, Ottawa, Ontario (Canada)
- OSTI ID:
- 5553145
- Report Number(s):
- AD-A-074845/9
- Country of Publication:
- United States
- Language:
- English
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250902* -- Energy Storage-- Batteries-- Performance & Testing
CURRENTS
ELECTRIC BATTERIES
ELECTRIC CHARGES
ELECTRIC CURRENTS
ELECTROCHEMICAL CELLS
ELECTROMOTIVE FORCE
ELECTRONIC EQUIPMENT
ENERGY STORAGE SYSTEMS
EVALUATION
FROST TESTS
LEAD-ACID BATTERIES
LOW TEMPERATURE
MATERIALS TESTING
MEDIUM TEMPERATURE
NONDESTRUCTIVE TESTING
PERFORMANCE TESTING
POWER SUPPLIES
TESTING
THERMAL TESTING