RE: Cheap? Yuasa Batteries

["Timothy Morris" <timothy.morris@xxxxxxx>]

Careful though, any alarm panels that I have opened use 7Ah batteries. With
a UPS you'll be sending the current through an inverter with its inherent
losses, and a single 3.2Ah 12V (38.4W power for an hour) battery is not
capable of supplying that current at high discharge rates. As current
demand
increases then available capacity decreases. SLA batteries are rated at a
discharge rate of 0.1C, so the batteries you are looking at will supply 320
mA for 10 hours.

I've learned more about primary batteries than I'd care to admit in polite
company through my obsession with radio control models. Sad isn't it?

Tim.

> -----Original Message-----
> From: tracey.gardner [mailto:tracey.gardner@xxxxxxx]
> Sent: 03 March 2001 09:18
> To: ukha_d@xxxxxxx
> Subject: [ukha_d] Cheap? Yuasa Batteries
>
>
>
> The batteries at Anchor are new! :-)
>
> Tracey
>
>
>
> >The only problem with second hand batteries is you do not know
their
> >history, rechargeable batteries only have a limited life even when
used
> >correctly, you should not consider using anything other than a
> new one for
> >an important application such as an alarm or UPS.
> >
> >Alancc
> >>
> >> When I visited Anchor Surplus in Nottingham they had some
3.2Ah Yuasa
> >> batteries for £4.50.
> >>
> >> http://www.anchorsupplies.com/yuasa.htm
> >>
> >> Tracey
> >>
>
>
>
>
>
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>
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