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How to Rate Battery Runtime

In the past, the battery industry got away with soft standards specifying battery runtimes. Each manufacturer developed their own method, using the lightest load patterns possible to achieve good figures. This resulted in specifications that bore little...

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Battery Failure, Real or Perceived

Battery manufactures use capacityto specify battery performance, and a new battery should have 100 percent. This means that a 2Ah battery should deliver two amperes for one hour. If the battery quits after 30 minutes, then the capacity is only 50 percent....

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How to Define Battery Life

Most new batteries go through a formatting process during which the capacity gradually increases and reaches optimal performance at 100–200 cycles. After this mid-life point, the capacity gradually begins decreasing and the depth of discharge, operating...

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