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  1. blackfin

    Alkaline cold temp performance

    Thanks for your responses. Apparently the higher ESR of the C cell's is too much for the circuit. I will do more testing and report.
  2. blackfin

    Alkaline cold temp performance

    I have been experimenting with AA's and C cell alkalines. I have 6 AA's in parallel (3+3) that produce 4.5 volts. I have another setup of 4 C cells in series with 6 volts. I have been freezing them below -4 and immediately powering my circuit. The AA's power up and the C cells don't. Any...

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