Re: [NTLK] Using AAA batteries in a MP2100

From: Johannes Wolf (mp2100_at_mail-gw.estec.esa.int)
Date: Tue Mar 29 2005 - 01:40:37 PST


You just put the wrong resistance value.
If I remeber correctly at 20 degree C (normal ambient) it should be ca. 10
kOhms.

Cheers
Johannes

> -----Original Message-----
> From: newtontalk-bounce_at_newtontalk.net
> [mailto:newtontalk-bounce_at_newtontalk.net]On Behalf Of Adriano
> Sent: Friday, March 25, 2005 12:20 AM
> To: newtontalk_at_newtontalk.net
> Subject: Re: [NTLK] Using AAA batteries in a MP2100

> First thanks for leaving your opinions.

> The Avi's background battery utility display a battery temperature of
> 64C....

> This data appeared as soon as i soldered the resistor, and remained
> stably at 64C with or without the AC connected during all these hours i
> am having the MP turned on. So from when to when i turned off the Mp
> and tasted the batteries just to feel that "64C" with my hand, insetad
> the batteries temperature was not different from when i installed them
> in the tray the first time, in a few word the AAA were cold.

> What do you think about it?

> Adriano

>
> Il giorno 24/mar/05, alle 23:57, Adam Ladds ha scritto:

> As the batteries are AAA, they would probably not get as hot because
> they are physically smaller, so it'll probably be ok. You will get less
> time to use your MP though, as AAA batteries are generally lower
> capacity. The only time you should need to worry about them burning the
> PDA is while charging anyway. It is, of course, possible that the
> batteries might overheat because they take less charging current, but
> you do get battery chargers that charge AA's and AAA's using the same
> contacts without problem (obviously they are springed, so they get
> smaller to accommodate the AAA's). I think you should be ok, just don't
> let them get too hot!

> cheers

> Adam

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