Battery Charging Currents of Assorted HP-Calcs & Peripherals

[Hans Brueggemann]

as discussed in this thread, exchanging cells in battery packs with newer ones with higher capacities (Amp-Hour ratings), be it NiCad, NiMH, low-leakage NimH (for example "Eneloop") or Cold Fusion, always leads to the question as to how long you should charge your new battery pack in order get the longest run time of your HP-item without sacrificing lifetime of the batteries.
in order to calculate the required charging time (as discussed here), you need to know the charging current that your battery pack is subjected to. however, it is not sufficient to know what type of charger you are using, as the charging current may vary considerably depending on the HP-item where your battery pack lives in.
to facilitate calculation of charging times, find below a list of HP-items and their associated charging currents. all currents were measured with an HP-3468B _directly_ at the battery packs. be prepared for surprises:

HP-34C: 120 mA
HP-97: 170 mA
HP-65: 55 mA
HP-67: 55 mA
HP-75C: 100 mA
HP-82120A: 14 mA
HP-82161A: 350 mA
HP-82162A: 250 mA