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HP Forums / HP Calculators (and very old HP Computers) / General Forum v / HP97 Card Reading

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HP97 Card Reading
02-16-2021, 01:55 PM
Post: #1
dbhp67 Offline
Junior Member
 		Posts: 10
Joined: Jan 2021
HP97 Card Reading
Hi,

I have just got a really nice 97 which is working really well. However it seems to have restored batteries, but I have no idea how old they are.

When I try to read a card it works fine when on the power supply, but won't read when only on batteries. Everything else works, the printer, the display etc when on batteries - just not the card reader.

I assume the batteries must not be providing the correct power. But apart from a Multimeter and basic electronics is there an easy way of checking the battery pack against some spec?

If not, I will be looking for a replacement pack!

Many thanks
DB
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Messages In This Thread
HP97 Card Reading - dbhp67 - 02-16-2021 01:55 PM
RE: HP97 Card Reading - teenix - 02-16-2021, 09:28 PM
RE: HP97 Card Reading - Dave Britten - 02-17-2021, 02:35 PM
RE: HP97 Card Reading - dbhp67 - 02-16-2021, 09:34 PM
RE: HP97 Card Reading - teenix - 02-17-2021, 11:10 PM
RE: HP97 Card Reading - [kby] - 02-18-2021, 07:40 PM



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