Recently my Philips coolshave started not giving many shaves per charge - as
luck would have it, I'd just salvaged a pack of 1000mAh Ni-Cd cells (Ni-Mh
that I have bags of won't do) from some scrap equipment.

Since it was apart anyway, the connections from the charging plug were more
easily accesible than the holes in the charger plug, so I grabbed the DMM -
25VDC charger for a single 1.2V cell.

Would anyone care to offer comments on the likely rationale of that?

Thanks.