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Dave Frederickson · (This post was last modified: 05-14-2021 04:17 PM by Dave Frederickson.)

Here's an answer from another thread.

(05-13-2021 09:03 PM)Maximilian Hohmann Wrote: Throw the original charger away (or at least keep it in a safe distance from the calculator) and get one of Mark Hoskins replacement batteries. They work perfectly well, I use them since many years in all sizes for each series of classic HP calculators. He also has a USB powered external charger for the battery packs.

Here are Mark's offerings: https://www.ebay.com/sch/waterhosko/m.html

Typical super glue's are unsuitable for filling voids, if the charger is being repaired for posterity's sake. Epoxy should do the trick or a polyurethane adhesive if you want to avoid the mixing.