On 27 Aug 2017 16:39:08 GMT
Charlie Gibbs  wrote:

> On 2017-08-26, Folderol  wrote:
>
> > On 24 Aug 2017 00:15:33 GMT
> > Charlie Gibbs  wrote:
> >
> >> On 2017-08-23, Folderol  wrote:
> >>
> >>> First off, charge voltage is inversely proportional to temperature, and
> >>> one of the companies I contacted was kind enough to send me a schematic
> >>> of a simple compensated voltage regulator, with a thermister which had
> >>> to be *in* *Thermal* *contact* with the battery under charge. Of course,
> >>> nobody does that these days, they just rely on the ambient temperature
> >>> being the same - thats if they bother with temperature compensation at
all.
> >>
> >> s/nobody/hardly anybody/
> >>
> >> Here's one that does:
> >>
> >> http://www.batteryminders.com
> >
> > Well that rather proves how out of date I am :)
> >
> > Looks like a nice range of kit, and I see they do support an optional
external
> > temperature sensor, although it's for the ambient temperature in the
vicinity of
> > the battery not in contact with it.
>
> On mine the sensor is mounted in a lug that you can attach to one of the
> battery terminals along with the charging wire.

That's good. You won't get much closer to the internal temperature without
making holes :)


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W J G

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