Battery Level of a RAM card backup cell, SRAM HP 95LX

[cfh]

(03-03-2015 01:53 PM)rprosperi Wrote:  

(03-03-2015 12:07 PM)cfh Wrote:  Dear Forum,
I am in the process of "recommissioning" my HP 95LX. Both work and leisure. Most data concerning total cost of ownership and depreciation of automobiles.

Have all programs I need, and CF adapter for the SANDISK/SUNDISK 32 MB: many more bytes than I will ever need. Love the keyboard and the HP Solve Calculator. The display is also nice.

BUT, for my 128 kB, yes, kilo bytes , HP Original RAM card, or SRAM, with a coin cell battery backup, I am courious on how to measure the battery level. The 95LX has the voltage for the main batteries and the "mainframe" battery backup.

How can I acces the SRAM card backup battery level, preferrably via DOS?

kind regards
CFH

(also, nomenclature for the 95, is it an HP 95 LX, or HP95LX, or HP-95LX, or something else?)
(Battery Low issue solved, broken hinge not solved and file transfer with Linux through USB port solved with gkermit)

First, look here. This site is dedicated to HP's Palmtops and you can still get parts, repair advice and service, etc.

Also, here you can find all back issues of The Palmtop Paper, which undoubtedly has these kinds of details. These issues were donated by Hal Goldstein, the original publisher, and (patiently!) scanned by Dave Frederickson, a member here.

I have browsed through them, actually, but only found vague references that the battery holds at least one year, possibly two, but set an alarm in the meetings organizer to switch every 11 months. Nothing in DOS. But ofcourse I have not read everything.

Anyone with an old AUTOEXEC.BAT to display the status? I use BATTERY2.COM in my reboot scheme to see the backup and main batteries statii.

cheers