In article , Eeyore
wrote:
I just bought several Energizer Rechargeable "9v" batteries (NiMH)
and, thanks to a previous post, I looked at the fine print and, yes,
it is actually 7.2volts! It says: "Size 9v" - so they can claim it is
a 9v battery due to the loose use of the term "9v" to indicate a
"size" rather than a power potential.

Why would the makers of these rechargeables make them not truly match
the voltage they are supposed to be?

Because they like fat profits ?

Buy the chaep ones instead. I did and it is actually 9V.

If you're talking Ni-Cads or NiMH, it's unlikely to be a 8 cell PP3 if
cheap.

The initial open circuit voltage of a Ni-Cad is pretty irrelevant. After a
short time under load it will settle at 1.2v per cell and stay there for
most of the usable range. Alkalines are dying from the second they're
used. ;-)

--
*Why don't you ever see the headline "Psychic Wins Lottery"?

Dave Plowman London SW
To e-mail, change noise into sound.