MF battery types

#31

In article <c8kcqc0sd6 (AT) news2 (DOT) newsguy.com>,
Nom <Nom (AT) Somewhere (DOT) Somewhere> wrote:

Quote:

But it's not a long life. When I started motoring, a decent battery
would give around 5 years - and this with a crude dynamo, or rather
crude control gear. So despite all the advertising hype, there's not
been much *real* progress in lead acid design for many years - if at
all.

It's not the battery at fault - it's the cheap charging kit in the car.

Eh? When designing utility electronics it makes no sense not to do the job
properly - the cost of the circuitry is tiny in mass production. In other
words, it costs the same to make a good regulator as a poor one.

Quote:

You'll often find batteries last longer in expensive cars (Mercedes and
the like) simply because they have better charging circuits.

You'd have to explain that one - obviously large expensive cars have
larger charging systems because they have a greater electrical load. But
better? Don't think so. And the original battery in my 'expensive' car did
just over 3 years.

--
*Can fat people go skinny-dipping?

Dave Plowman dave.sound (AT) argonet (DOT) co.uk London SW 12
RIP Acorn

#32

Dave Plowman wrote:

Quote:

In article <c8kcqc0sd6 (AT) news2 (DOT) newsguy.com>,
Nom <Nom (AT) Somewhere (DOT) Somewhere> wrote:
But it's not a long life. When I started motoring, a decent battery
would give around 5 years - and this with a crude dynamo, or rather
crude control gear. So despite all the advertising hype, there's not
been much *real* progress in lead acid design for many years - if at
all.

It's not the battery at fault - it's the cheap charging kit in the
car.

Eh? When designing utility electronics it makes no sense not to do
the job properly - the cost of the circuitry is tiny in mass
production. In other words, it costs the same to make a good
regulator as a poor one.

Except that it doesn't. Cheap regulators are cheap - they're not as
accurate, and don't last as long.

Quote:

You'll often find batteries last longer in expensive cars (Mercedes
and the like) simply because they have better charging circuits.

You'd have to explain that one

I can't - it's just how it is

Quote:

obviously large expensive cars have
larger charging systems because they have a greater electrical load.
But better? Don't think so.

Well that's what I've always read. From memory, the setup is much better in
something like an E-Class Merc, than in a mid-90s Fiesta !

#33

In article <c8v0gh0cho (AT) news1 (DOT) newsguy.com>,
Nom <Nom (AT) Somewhere (DOT) Somewhere> wrote:

Quote:

Eh? When designing utility electronics it makes no sense not to do
the job properly - the cost of the circuitry is tiny in mass
production. In other words, it costs the same to make a good
regulator as a poor one.

Except that it doesn't. Cheap regulators are cheap - they're not as
accurate, and don't last as long.

Easily checked with a voltmeter. And all the recent cars I've checked have
been the same.

Quote:

You'll often find batteries last longer in expensive cars (Mercedes
and the like) simply because they have better charging circuits.

You'd have to explain that one

I can't - it's just how it is

obviously large expensive cars have
larger charging systems because they have a greater electrical load.
But better? Don't think so.

Well that's what I've always read. From memory, the setup is much better
in something like an E-Class Merc, than in a mid-90s Fiesta !

Can't see it, myself.

--
*Don't use no double negatives *

Dave Plowman dave.sound (AT) argonet (DOT) co.uk London SW 12
RIP Acorn

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MF battery types

Cars Modifications Aspects of car modifications (tuning, styling) (uk.rec.cars.modifications)

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