HP-71B battery drain with no extra RAM or ROM

[jebem]

(12-19-2015 04:06 PM)hpcalcuser83 Wrote:  Yup. Except i do not have the broken terminal. i am going to continue trouble-shooting my low voltage when batteries are inserted problem.

I would not overlook the obvious things to do in first place.
Assuming battery corrosion from acid leaking, I would dismantle the machine as much as possible and then clean all parts to make sure no acid is causing the symptoms you describe.

I use warm water and hand washing dish detergent, scraping with a soft brush.
Then I repeat the operation on the electronics PCB only (keep the LCD out of this procedure) with Isopropyl alcohol and et id dry for at least 24 hours before applying power supply.