Looking for a rechargeable battery for my old 32E statistical calculator ; also what is the equivalent new version of the 32E ; this had a remarkable feature the normal distribution values Q and Q-1.
The display of my calculator flashes at times and numbers go off ; but the battery pack does not take charge after hours ....anyone who can help with a battery pack HP82109A?
(12-10-2017 12:43 PM)jayefe Wrote: [ -> ]Looking for a rechargeable battery for my old 32E statistical calculator ; also what is the equivalent new version of the 32E ; this had a remarkable feature the normal distribution values Q and Q-1.
The display of my calculator flashes at times and numbers go off ; but the battery pack does not take charge after hours ....anyone who can help with a battery pack HP82109A?
You can buy replacement batteries on eBay:
https://www.ebay.com/itm/Battery-1000mAh...2554268868
https://www.ebay.com/itm/Hewlett-Packard-Calculator-Battery-Pack-1000maH-HP-31E-32E-33E-33C-34C-37E-38CE/322929843356
But another, likely safer, option is to buy flat-top NiMH AA cells (Eneloops are best), charge them externally with a smart charger (e.g. Lacrosse Technology BC700) and insert them into the 32E with a small metal connector at the far end (folded aluminum foil works fine). The Plus (+) terminal is the one towards the
bottom of the unit.
As another user posted, NEVER run your 32E with the charger plugged-in and no battery or poor battery, the power from the adapter can damage your 32E.
Good luck.