Tell me about the HP 67

[Didier Lachieze]

(12-10-2017 07:18 AM)hth Wrote:  If I could get some rechargeable batteries that could be taken out and loaded in a smart charger outside, I would be more inclined to try it out. Is that possible?

You can use a battery pack such as this one with 3 AAA batteries that you can charge outside of the calculator.