On Wednesday, June 26, 2002 at 10:57, CyberSimian
<olympus@xxxxxxxxxxxxxxx>
wrote re "Re: [OM] flash recharging rate/Flash roulette" saying:
> An most-informative post -- thank you. However, so far in this discussion I
> don't think anyone has mentioned what I thought was the reason that some
> flash units are not recommended for use with NiCads, namely voltage. Using
> my el-cheapo voltmeter, a new alkaline cell has an "open-circuit" voltage of
> about 1.65 volts, compared to an open-circuit voltage of about 1.35 volts
> for a fully-charged NiCad cell. Does this difference in voltage have no
> effect? (I recognise that the on-load voltages may be different from the
> open-circuit voltages quoted above.)
What matters is the battery cell's internal resistance as this limits
the current to fill the capacitor(s). The higher the current, the
faster the recycle time, but the more robust the wiring and components
have to be. I recall reading that the T32 has 6 separate charging
circuits to use & divy up the current.
Tom
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