A friend just purchased an old Ricoh FF-90 film P&S camera. He wants to
use NiMH batteries but the user's manual (which can be found here)
<http://www.butkus.org/chinon/ricoh/ricoh_ff-90/ricoh_ff-90.htm> states:
------------------------------------------------------------
* Do not use Nickel Cadmium batteries. "Use of rechargeable Ni-cad
batteries is not recommended. Due to higher internal amperage, the
electronics in your Ricoh camera/flash unit may be damaged. If damage
due to use of Ni-cad batteries occurs, the warranty will be considered
null and void"
------------------------------------------------------------
Can someone explain why this is? I can understand problems with NiCad
or NiMH possibly not delivering enough voltage for proper operation but
I don't understand just the *capability* of the batteries to deliver a
higher current as injurious. In fact, my limited knowledge of
electronics (Ohm's law: I=V/R) would say that the fixed resistance of
the camera's circuits would cause a lower current draw with lower
voltage batteries. Without understanding why I suspect that the flash
is the problem since the flash, during recharge, is that only thing that
normally draws a high current. If that's the case could NiMH be used if
the flash is turned off?
Thanks,
Chuck Norcutt
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