In article , The Other Mike
scribeth thus
On Fri, 11 May 2012 13:48:27 +0100, tony sayer
wrote:

Is there much difference between the sealed lead acid battery Yausa type
and the open one's like leisure batts and car batts?...

Yes, lots. There are big variations in battery construction and
chemistry depending on their intended use, the vast majority of which
won't be obvious or even visible to end users. (and Yuasa type means
nothing really as they make a huge range of batteries)

That was just being used as an example as many do make these.

Like Exide for instance. Didn't last 5 mins for standby power;(..



--
Tony Sayer