You are referring to 6 D cells in series, right? (1.5V * 6 = 9V) Yes, nominal voltages vary a little with battery chemistry, but the point is that, if you use 2 AA batteries without any problem, you can change to 2 D cells without any power supply changes. Just use the same chemistry you were using before.
Also, in case it helps, wikipedia has a good list of voltages for each battery size and chemistry. http://en.wikipedia.org/wiki/List_of_battery_sizes -Jacob On Thu, May 7, 2009 at 1:15 PM, Denis Smorgon <[email protected]> wrote: > D battery for alkaline model has 9 V of nominal Voltage and Ni Cd or NiMh > have 8.4 V so you have to pay attention and check if your sensor board > accepts this voltage. On my application I use a Li Ion 7,5 V battery and for > reducing its voltage a voltage regulator is used because MDA320 accepts > input voltage up to 5 V but Xbow recommends 3.3 V. > > Denis > > ------------------------------ > *Da:* [email protected] [mailto: > [email protected]] *Per conto di *Jacob Sorber > *Inviato:* giovedì 7 maggio 2009 18.38 > *A:* Rodrigo Roman > *Cc:* [email protected] > *Oggetto:* Re: [Tinyos-help] (offtopic) D batteries in sensor nodes > > The only difference will be lifetime. Typically, standard-sized batteries > all have a nominal voltage of 1.5V (alk) or 1.2V (NiMH) regardless of size, > and can usually be used interchangeably. > > Jacob > > > On Thu, May 7, 2009 at 10:48 AM, Rodrigo Roman <[email protected]> wrote: > >> (This question may be a bit outside the topic of this mailing list, but >> I think it may be an interesting idea for all mote users here. Still, >> sorry in advance) >> >> Hi all, >> >> We are interested on using D batteries on tinyos-compatible "low class" >> mote (micaz, iris, telosb), instead of AA batteries. Anyone has >> experience on using these type of batteries?. >> >> Best, >> >> Rodrigo Roman >> http://www.lcc.uma.es/~roman <http://www.lcc.uma.es/%7Eroman> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >> > >
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