Re: TI-H: Extending the battery life.
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ti-hardware@lists.ticalc.org wrote:
>
> With all this talk about putting circuits in internally, it only
> seems natural to me to point this out, your batteries will drain a lot
> sooner. So I was wondering, wouldn't 2 9volt batteries outlast 4 aaa
> bateries? Common sense tells me it would, and it also looks like it's
> possible to add 2 9 volt batteries in there, or at leats one. and with a
> couple of resistors you could drop the voltage down to 4.5( I figured this
> out by plugging my calc into an AC adapter at 4.5 volts).. Would this
> work??
> -Alex
>
Actually, resistors dont drop voltage. Youd want two resistors and make
a voltage divider to make it around 4.5 but this would drain even when
no power was being used. Best bet would be just to open a 9-volt and
rewire it so that instead of 9 volts, it makes 4.5 volts. It would be a
bitch to put it back together probably and every time you needed a new
battery
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