HP80 battery pack voltage reversed

[Harald]

(11-03-2016 11:28 AM)elgin113 Wrote:  I had installed a new battery pack for my HP80 with 3 NiMH batteries.
However, when I was copying the old battery pack I accidently reversed the terminals.
When I pluged the charger in it turned on OK and worked but an hour later the screen was blank.
Is the calculator permanently damaged or can it be repaired?
Thanks for your replies.
David

I would have thought you probably killed the charger. The calculator itself might have survived. You could try using 3 AA alkaline batteries to test the calculator.

If it hasn't survived, I can refere you to my post in the classified section...