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Safely charging my 65
03-24-2015, 12:25 AM
Post: #9
RE: Safely charging my 65
Oh I see, I've misunderstood. The 92266 is for rechargeable N cells.

Don mentioned that he's never had any trouble as long as he doesn't turn on the 65 without the battery pack installed. I wonder what would happen in the case of plugging in the charger with a faulty battery pack.

I'd never want to turn the unit on while charging, in case the battery pack was bad, but I'm unclear as to whether attempting a charge with a faulty pack is dangerous. I think my battery pack is OK, but hesitate to take a chance on damaging the 65. If you guys say it's OK, I'll go for it. I miss playing with the little bugger.

(03-22-2015 08:13 AM)PANAMATIK Wrote:  I cannot give advice for charging more than others have given you already. I agree that you can safely charge the batteries inside any woodstock calculator if the calculator is switched off.

But you can repair your fried HP-97! Although the new ACT is not suitable directly for the HP67/HP-97 it can be used to replace an HP21/HP-25 and use the original ACT in the HP-97s. All you have to do is buying a working HP-25/HP-25C and replacing its ACT.

I tried an HP-25C ACT in my HP-97 and everything including printer is working fine. Unfortunately the card reader of my HP-97 was not yet repaired, so I couldn't test it, but I assume that it should also do well with any ACT.

If replacing the HP-97 ACT you should know, that even with a low profile socket there is not enough space inside the case, it must be soldered directly.

Bernhard


Bernhard, thanks for the great idea. Before I go down that path I need to find out if the ACT in my 97 is definitely the problem. One member generously offered to help me diagnose it, but I haven't had the time to disassemble it and work through the process.

If I find out that the ACT is indeed the problem, you've illuminated a path to fixing the problem, because I happen to have a working HP-25 in my collection.

Brad
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Messages In This Thread
Safely charging my 65 - Brad Barton - 03-21-2015, 02:32 AM
RE: Safely charging my 65 - Don Shepherd - 03-21-2015, 03:05 AM
RE: Safely charging my 65 - rprosperi - 03-21-2015, 12:20 PM
RE: Safely charging my 65 - Don Shepherd - 03-21-2015, 12:56 PM
RE: Safely charging my 65 - Brad Barton - 03-22-2015, 03:31 AM
RE: Safely charging my 65 - Les Bell - 03-24-2015, 01:43 AM
RE: Safely charging my 65 - Brad Barton - 03-24-2015, 02:22 AM
RE: Safely charging my 65 - TASP - 03-21-2015, 04:01 AM
RE: Safely charging my 65 - TASP - 03-22-2015, 03:47 AM
RE: Safely charging my 65 - PANAMATIK - 03-22-2015, 08:13 AM
RE: Safely charging my 65 - Brad Barton - 03-24-2015 12:25 AM
RE: Safely charging my 65 - Don Shepherd - 03-24-2015, 01:04 AM
RE: Safely charging my 65 - Brad Barton - 03-24-2015, 02:16 AM



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