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Posted to uk.d-i-y
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Charging battery in situ
On 26/11/2016 04:19, wrote:
On Saturday, 26 November 2016 00:59:24 UTC, Dave Plowman (News) wrote:
In article ,
tabbypurr wrote:
On Friday, 25 November 2016 00:33:34 UTC, Dave Plowman (News) wrote:
In article ,
tabbypurr wrote:
On Thursday, 24 November 2016 16:22:57 UTC, Brian Gaff wrote:
"Bertie Doe" wrote in message
...
The boss in local battery centre says it's ok to connect neg
charger lead to neg terminal on battery.
However, car's user manual suggests connecting to somewhere on
the chassis. This can be a pain, getting a good connection. Any
thoughts TIA.
I don't see the reason for using the chassis unless testing the
earth, but you don't need a charger for that!
I persume the idea is to reduce current if anything shorts, thus
avoiding fire.
With a battery charger? Don't think even the very cheapest I've ever
seen was devoid of some form of protection against shorts.
That of course offers no protection against the leads wearing through
and shorting.
Really? Why would that be?
You really can't work out that if the leads short the car battery is shorted? That any protection inside the charger has no effect on that? Seriously?
But then most with sense wouldn't use anything where 'the leads had worn
through'
You haven't done much PAT testing have you.
NT
I have had the situation where the charger leads have shorted together
putting battery voltage into a dead short through them, within moments
they became white hot and burnt through as a fuse would. No problem.
No flames, just a bit of smelly smoke. It would of course be trivial to
add a fuse adjacent to one or both of the crocodile clips to save the
lead becoming the fuse. But as this has only occurred once in the last
50 plus years (and it was caused directly by my own carelessness) I do
not consider it a real problem.
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