Re: [NTLK] Car Charger for $70?

Robert Terhune wrote:
> I haven't looked at any official specs, but here's what I gather you'd
> need for a DC car charger (or any charger, for that matter) from
> looking at my two Apple-branded MP and eMate adapters:
> 7-7.5 V
> 500 - 1200 mA (0.5 - 1.2 A)
> center positive (inside is +)
> 5mm plug (I could be wrong on this one)
>
> As far as I can tell, the charger you mention can do all those EXCEPT
> the 500 mA. I have an (~10 yr-old) 273-1810 and it does only 300 mA.
> Now, that might be enough, but you may want to only charge with it (if
> you try to use the MP at the same time it may not have the power and
> you may blow the 273-8111's fuse).
>
> It would be nice if we could come up with a DC charger, though,
> because the inverter-option is not only clumsy, but also highly
> inefficient (you might burn something like 10 W just to deliver 3 W to
> your MP).

Looks like you're correct. The Apple adapter for my MP2100 is rated as
DC output 9W, 7.5 V, 1.2 A

Sincerely,
Dennis

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Received on Mon Oct 20 13:48:04 2008