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World climates are divided broadly into cold, temperate and tropical zones. It is well known that the performance of automotive batteries under cold, warm or hot conditions is determined by the characteristics of the chosen separators. In the battery tests reported here, polyethylene envelope separators are found to be beneficial in cold environments. By contrast, leaf-type, polyethylene, synthetic...
Endurance tests under high-temperature conditions have been performed on three groups of automotive batteries. One group has been assembled with polyethylene pocket separators for the negative plates, another with polyethylene pocket separators with glass mats for the positive plates, and a third with leaf-type synthetic pulp separators with glass mats. Negative plates developed a sand-like appearance...
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