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Regardless of the power source AC or DC.

1. If the Voltage is approprite (matched to) for the Device.

2. Then it is the Device (Load) that determines the Current Flow.

EXAMPLE: A small 115VAC powered Transistor Radio plugged into
the 20 Amp 115VAC Outlet will NOT draw 20 Amps and Burn Out.

be101 ~ RHF
= = = Basic Electricity 101
..
..
= = = starman
= = = wrote in message ...
Maximus wrote:

Thanks everyone ! But about the current, how much current is a gel cell
going to provide ? My concern was burnin gup the radio because the battery
would produce too much current. That was why I mentioned the mathematical
handicap LOL. I was thinking I would have to reduce the current with a
resistor or something, and had no idea how I would calculate the value of
the resistor. Thanks very much S.
P.S. the "V" is "V for Victory". I couldn't figure out how to make a CW
version that I could insert in a signature.

If the battery is close to the correct voltage for the radio (12-V in
your case), it will use the right amount of current without having to
regulate it. The larger the battery capacity in Mah or Ah, the longer
the radio will run before you have to recharge the battery.


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