Rick Jones wrote: > So I guess the question is - can a car power cord > supply enough power for operating both the wearable > and the charger at the same time. Also it'd be nice > if the charger were a bit smaller (ah well, beggers > can't be choosers). Yes, at low voltages, not usually enough for a wearable power source. No at high voltages like my 12V NiMH setup. To charge 12v batteries I need at least 16v, I am using 18v. But I have an AC inverter in my car, it plugs into the cigarette lighter socket and give me AC outlets, so I can plug in the 18V 3.3A AC/DC adapter and the LM3647 charger or my toshiba PA2488U dual charger for PA2487U li-ion batteries. I can also plug in another accessory like the charger for ricochet modems. Somebody mentioned that there are "charge pumps" one could use to boost the vehicle power up in voltage (using capacitors) but we are talking about a lot of current here to charge high capacity cells, so I really don't think that's a viable approach. The AC inverters for cars are not very expensive (~$50). -- Doug -- Subscription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" toWear-Hard Mailing List Archive (searchable): http://wearables.blu.org please, Please, *PLEASE* don't subscribe through a forward/false domain
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