Hello all,

I have a project that involves blinking LEDs that the client would like
to have run for 2 months per battery or battery set.

2 9V wired in parallel would do it and is preferable to 4 AA.

Is this a reasonable thing to do?  Is it dangerous at all if both are
fresh of the same kind?  How about if not?  Would a 5ohm resistor in
series with each before being wired in parallel alleviate any dangers
from users who don't follow directions?  (its a consumer product).  The
current is pretty low so the loss due to a small resistor is not a problem.

Any advice?
Thanks ...
Jesse



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