HP-50G Excessive Battery Drain / Fix?

[jebem]

(06-05-2015 10:16 PM)Garth Wilson Wrote:  

(06-05-2015 07:34 PM)jebem Wrote:  It was interesting to know what are the manufacturing year of the affected machines.
Perhaps this can be related to a specific production batch?
Can you post your serial numbers for comparison?

The one I told about above, with 5.7mA "off" current, is CNA 70702169, and nothing was plugged in, including no SD card.

So far, the affected calculators shows older manufacturing dates. Yours should be from 2007, right?

I wonder if this issue is related to older firmware releases, that didn't put the processor in deep sleep, for instance.
My two calculators were made in 2009 and 2010 and runs two different firmware versions: 2.08 and 2.15. Both are fine and don't exhibit this current "leaking".

Could you check your software version, please?