Smoke alarms, approx fitting costs
On Mon, 19 Mar 2018 11:17:06 +0000, alan_m wrote:
My experience with 10-year lithium batteries in smoke alarms is that
they don't last 10 years - more like 5.
.... and Duracell "Procell" 9 Volt batteries last about 4 years, at a fraction of
the cost...
Thomas Prufer
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