Recommanded NiMh battery cells for HP82162A

[Dieter]

(09-24-2017 08:01 AM)Neve Wrote:  Dieter,

The link you provided earlier stipulates that the combined cells deliver 4.8v...

1,2 V is just the nominal (!) voltage of NiCd and NiMH cells. The actual voltage is different. Fully charged and without load it usually is higher than 1,4 V and when completely depleted it approaches 1,0 V (with load applied) or even drops slightly below this. Yes, these are "normal 1,2 V cells".

No NiCd or NiMH cell produces a constant voltage of 1,2 V. This is just a nominal value. Take a look at the charge/discharge curves in the various manufacturers' data sheets. For instance here (GP17AAAH, a typical 1/3AAA cell). Consider the "low rate discharge" graph. Without load (i.e. 0 mA) the voltage probably is even slightly higher.

Dieter