10 Mar
2011
10 Mar
'11
12:25 p.m.
On 3/9/11 10:37 PM, Hollandia at ccountry.net wrote:
One of my computers is a 486SX. The soldered-in
battery is apparently
failing; after a period of power-off, the time is badly off at re-start. The
date and BIOS are so far unaffected.
The motherboard has provision for an off-board battery. I am thinking of
using a socketed CR2032 battery which I believe is rated at 3 volts. The
manual for the computer describes the off-board battery as 3.6 volts.
Is it asking for trouble to use a 3v rather than a 3.6v battery? If so,
where are the 3.6v batteries available?
3.6 is 3*1.2V, and 1.2V is the intrinsic cell voltage for several
battery technologies, such as NiCd and NiMH.
3.6V is the intrinsic cell voltage for LiIon cells.
Is the motherboard expecting to charge the battery?
-Dave
--
Dave McGuire
Port Charlotte, FL