HP-41 Batteries

[klacombe]

Yes, I am venturing into card reading and barcoding. I just paid less than a $1 a piece for energizers but I guess it's more about seeing if I can than cost. I agree that the voltage is an issue but still the same issue as with the original rechargeable pack. With the use of NiMH batteries it gets a little better and repeated charging is less of a problem. I am very interested in trying the use of 2/3AAA rechargeable batteries as documented on Warren Furlow's site with a DC adapter. I was actually curious if anyone had tried that size directly in the normal battery carrier. I suspect you would need to fatten them up a little (10mm dia compared to 11.68mm). I would consider using those because you can readily get those in NiMH with the standard ends. Easily charged in a standard charger as well.