HP-19C Batteries

[Jonas Sandstedt]

Hello Tony,

I have a solution my working 19Cs that I have described previously and repeat it here since I think it works so well.

https://www.hpmuseum.org/forum/thread-17716.html

Each kit I have is bought at Amazon and includes an USB charger such that the battery pack can be easily removed and safely charged outside the calculator. The kits are fairly inexpensive, about 140SEK, see for example

https://www.amazon.se/gp/product/B085WVH...UTF8&psc=1

A connector is needed to be acquired and soldered to the battery pack, and these are sold in bundles (the connector polarities red/black may not correspond those of the battery pack). This ensures safe charging, even relatively safe inside the calculator (but why risk it).

The low power indication works as well for this battery pack.

Best regards
Jonas