On Thu, 10 May 2012 22:10:10 +0100, Peter Parry
wrote:

On Thu, 10 May 2012 21:03:36 +0100, Tim Lamb
wrote:


Won't take a charge!

Using what charger? A lot of "intelligent" chargers are anything but
and if presented with a totally dead battery refuse to charge it (many
APC UPS exhibit this useful behaviour). The cure is to put any old
simple charger on the battery for 30 min's then reconnect the
expensive posh one which will work.

I'd not call APC chargers that intelligent as they routinely
overcharged their batteries in the late 1990's, whether they knew
nothing about the chemistry of the cells they were using or they did
know about them and did it deliberately I don't know.

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