On Tuesday 26 November 2013 17:52 Dave Liquorice wrote in uk.d-i-y:

On Tue, 26 Nov 2013 17:29:25 +0000, Tim Watts wrote:

5 or 6 quid will buy you a 10 year lithium battery.

shrug
Just buy rechargables.

Which are almost completely useless for this type of application, with a
nominal cell voltage of 1.2V and lower when it's cold.

And have a nasty habit of retaining a decent voltage that disappears
rapidly when you put a load on, like the trying to sound the alarm...


Yep - I went through a phase once of NiCds in lots of things.

TV remotes seemed to last a week between charges.

Torches were useless - could never find a bulb with a voltage that worked
"right" - either too dim or blew in a few days.

Rechargeables are great for things designed to use them, but until someone
gets a cell chemistry that can get near to 1.5V, they will never be much
good as a swap in for primary cells.

--
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