In article , nicola writes:
How much voltage do Eneloops loose after a week? This is my situation in
more detail.....

I have an old Sony digital shortwave radio from the 1980s which works
slightly better on alkalines but I use Eneloops because it's cheaper.

Eneloops last about 9 or 10 days before the radio won't switch on.

I alternate between 2 sets of Eneloops. Each week I take the used Eneloops
out of the radio and put in a new set which were charged the week before.

How much voltage will the week-old Eneloops have lost? I am more concerned
about losing radio perfomance (which is why I am asking about voltage) than
total charge.

Using voltage as a measure of remaining capacity is not really very reliable
with NiCad's and Nimh's. And in your case, knowing the enloops have a low
self-discharge rate (70-85% retained capacity after one year on the shelf)
is of no interest.

For NiCad's I believe we are warned to not discharge them below 0.8 volts,
which is considered effectively a "zero energy remaining" level, and my
guess is that eneloops are about the same. If you discharge a battery
(collection of multiple cells in series) too low, you may still get
energy from the strongest cells in the collection, but at the cost of
reverse charging, and therefore damaging, the weaker cells. Don't do
it.

Anyway, if you want to know how many teeth are in a horses mouth,
perhaps you want to get out your digital camera and see if you can
use that to help with counting them yourself.

George