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Vtile · (This post was last modified: 03-27-2017 02:37 PM by Vtile.)

(03-27-2017 01:55 PM)Han Wrote: Was it this one? http://hackaday.com/2009/03/06/new-batte...-an-hp50g/

The link in the article appears to be dead, but using the Wayback Machine, you can view an old snapshot here: HP 50G rechargeable battery pack hack

Yep, it seems to be the "blog article" I referred. The down side is that you loose the "hot swap" ability of the AAA-cells, which for me are more important feature than a year worth of power at once.

PS. @pier4r do you have equipment to measure the real current draw of your 50g? There have been atleast one unit that had bad tantalum condensators in the mainboard that resulted excessive power consumption and also the big electrolytic capacitor glued to battery compartment (inside) might be leaky. Obviously if your normal use is 100% cpu time, then I can understand the "Few hours" battery life. Smile

Hah, this answer and given solution is epic. Big Grin

(quote from hackaday)

Quote:Lessa says:
March 6, 2009 at 6:19 pm

The worst situation is the message “Low battery” in the middle of your final exam. this calculator should inform charge status of the batteries.
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Quote: Kerm says:
February 26, 2014 at 3:53 am

Put in fresh new batteries before your final exam? Maybe you’re not cut out for college after all?
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