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Thread: NBv4 and power exstender led question

  1. #1

    Post NBv4 and power exstender led question

    The power exstender for the NBv4 says the output for volts is 12 volts. So do you calculate the led resistor for the 12 v output or the 3.7 v of the 18650 battery?

  2. #2

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    3.7 volts. 12 is probably a maximum rating stamped on there. Figure your resistor for your supply.

    "Let the past die."

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