Roger Hayter wrote:
Dave Plowman (News) wrote:

In article ,
Theo wrote:
"Dave Plowman (News)" wrote:
You'd need an awfully large charger to get voltage spikes past the very
low impedance of a car battery.

If the battery is knackered, won't that impedance increase? As an
endpoint, imagine if the battery was completely dry - it's open circuit
and so wouldn't accept any current at all, and all the current would be
put into the car electronics.

Would sulphation raise the impedance?

Yes to both. But then that is two faults. An incredibly crappy charger and
a totally knackered battery.

Properly designed car electronics should have voltage regulators (and
components) rated up to 40 volts.

Indeed. Although I wouldn't be surprised if some weren't as
tolerant as they should be (also that aftermarket radio you got from
China...)

The old chestnut that only China makes rubbish. ;-)

It may be true that if you want to specity and sell cheap rubbish you
get it made in China, but that's only because China is the cheapest
place to make any electronics, from cheap and nasty to top quality.



That is what happens when people exploit others, sending them out to work
long hours while they take the money. Exploitation.

Not unlike racism, when those on selection boards apply special rules to
prevent ethnic groups from getting jobs.

Then you get people who abuse people from one race/ culture, forcing them
to work long hours in menial jobs, almost slave labour. Not uncommon in
domestic situations.



--
https://www.antislavery.org/slavery-...forced-labour/