On 04/12/2019 18:17, Ray wrote:


"Jethro_uk" wrote in message
...
On Wed, 04 Dec 2019 16:32:01 +0000, Scott wrote:

I found a few rechargeable batteries that had not been used for at least
three years.Â* I charged them all and found they do not seem to be
holding their charge (unable to power a cordless mouse for more than
five minutes).

Is this type of battery destroyed by being left discharged for a long
period or could it recover with a few more charges?

Does it matter

Gave up using rechargeables for AA AAA batteries years ago. There's no
way they saved any money after buying the charger(s) and having the
batteries last for a few months.

My eneloops have lasted much longer than that.

My Sony NiMH AA batteries, marked "CycleEnergy", bought 2008
are doing fine. They are mostly used in my Caplio GX8 camera
that takes 2 AA batteries and have been recharged many times.

The Energiser NiMH AA rechargeables that were bought a few years
later go flat much more quickly and one made the intelligent
charger flag it as a bad cell, so that one has gone.

A good quality battery charger that doesn't overcharge is
probably a good idea, also, while they might be convenient
I suspect that 1 hour chargers shorten then lives of
rechargeables.


I wouldn't be surprised if they are less environmentally friendly than
regular disposable ones.