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Posts Tagged: battery reserve capacity

Car battery reserve capacity

What is car battery reserve capacity? Automotive batteries are rated in three categories: cold cranking amps, cranking amps and reserve capacity. I’ll cover cold cranking amps, cranking amp in this post and concentrate on just reserve capacity here. Automotive battery reserve capacity is a rating to give you an idea of how long the battery can be discharged at a rate of 25-amps while still maintaining at least 1.75-volts per cell, or 10.5 total volts. A 12-volt battery is capable of outputting 2-volts for each of the six cells. The … Read More


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