19 Dec
2005
19 Dec
'05
6:35 p.m.
On 12/19/2005 at 1:02 PM Roy J. Tellason wrote:
Ever wonder why almost all car batteries sold these
days have cases that
are black? It's because the material is almost all recycled plastic, and
that's the easiest color to end up with...
My recollection goes back long before recycling and PVC and auto battery
cases were always black, with very few exceptions. Basically a composition
(phenolic maybe?) tub with three cells embedded in pitch and connected
together. In the very old days, some battery shops could actually replace
an individual bad cell.
OTOH, sealed gel-cell cases seem to be mostly black or blue (or some shade
in between).
Cheers,
Chuck