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#27
March 24th 18, 06:12 PM
posted to rec.aviation.soaring
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The inadvisability of charging LiFePO4 batteries below 32F/0C(aka below freezing)
In the circuit of a strobe (flash) built into or mounted on a camera, at the moment it is triggered, the current from the capacitor (charged to about 300 volts), through a transistor and into the flash tube, is around 100 amps. The wires connecting them are amazingly thin - gauge 18 or even thinner.. That works because the current pulse only lasts about a millisecond.
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