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Old January 16th 13, 01:30 AM posted to microsoft.public.windowsxp.hardware
VanguardLH[_2_]
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Posts: 10,881
Default Location of CMOS Battery in HP Pavilion N3390 Laptop

"jaugustine" wrote:

I would never solder a wire to one of those "coin" batteries.


What I'm saying is that you may not simply be able to buy a coin cell
battery from a store to slide into a holder on the mobo. There may be
no coin cell bracket. Instead there may be a connector on the mobo and
you're stuck having to use a battery that has the right length leads and
connector on the end (i.e., you have to get or make a coin cell battery
with the leads and connector).

Also, as mentioned, there may be no external battery for you to replace.
They may have used a capacitor (soldered on), a battery IC (also
soldered on), or the RTC chip (soldered on) has an internal battery that
is also used for CMOS.

You might want to call Dell's support to find out (1) is there a battery
that can be replaced (so it's not a capacitor, IC, or RTC part that's
soldered onto the mobo), and (2) if the battery can be replaced then is
it just a coin cell or does it have leads and a connector.
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