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From: Bill Wright on 6 Sep 2009 16:32

"The Medway Handyman" <davidlang(a)nospamblueyonder.co.uk> wrote in message
news:3mSom.76305$OO7.64160(a)text.news.virginmedia.com...
> dennis(a)home wrote:
>> "Dave Liquorice" <allsortsnotthisbit(a)howhill.com> wrote in message
>> news:nyyfbegfubjuvyypbz.kpk6xf3.pminews(a)srv1.howhill.co.uk...
>>> On Sat, 5 Sep 2009 21:28:59 +0100, dennis(a)home wrote:
>>>
>>>> Such a device could probably supply 10A, which would fully recharge
>>>> a typical battery in about 6 hours.
>>>
>>> Hum, so a less than 10AHr SLA can fully charge a 60AHr car battery in
>>> 6hrs, interesting... I think dennis has just solved the world energy
>>> crisis.
>>
>> You are TMH ICMFP as you can plainly see that I said nothing of the
>> kind.
>
> "Such a device could probably supply 10A, which would fully recharge a
> typical battery in about 6 hours" - sounds pretty much like teflon Dennis
> is at it again...
>
> Explain the difference between your statement at that of Mr Liquorice
> halfwit.

On the face of it the difference is in the units. He said 10A, not 10Ah.
With no other information he could have meant that the device could produce
10A for 6 hours.

But this suggests that he unaware of the difference between amps and
amp/hours. Surely that isn't the case. Or is he unaware that the total
number of Ah available is limited by the Ah capacity of the device's
battery, and that these devices have quite small batteries. But he must know
these things.

So it's a mystery.

Bill


From: Clint Sharp on 7 Sep 2009 04:56
In message <50963a8735dave(a)davenoise.co.uk>, Dave Plowman
<dave(a)davesound.co.uk> writes
>In article <BBszeUIGkroKFwjb(a)clintsmc.demon.co.uk>,
> Clint Sharp <clint(a)clintsmc.demon.co.uk> wrote:
>> >That's why jump leads are thick heavy wires.
>> Ever dissected a set? Most are just lots of thick insulation.
>
>Must be cheap ones then. The minimum should be 16mm and decent ones are
>25. But cost.
>
Oh yeah, definitely cheap to make but not necessarily cheap to buy and
most definitely in the majority. I've rarely seen a set of retail jump
leads that were anything like man enough to start a car straight away.

Having said that, I'd rather let the 'dead' vehicle get some charge from
a cheap set of leads and have it start from its own battery. Much kinder
to my alternator and battery.

If the person asking for help hasn't got enough patience to wait for
5-10 minutes then they can get stuffed, I usually find most are grateful
just to sit in a nice warm car for a while after being stranded anyway.
--
Clint Sharp
From: Dave Plowman on 7 Sep 2009 13:32
In article <flI0XRFSrMpKFw73(a)clintsmc.demon.co.uk>,
Clint Sharp <clint(a)clintsmc.demon.co.uk> wrote:
> Must be cheap ones then. The minimum should be 16mm and decent ones are
> >25. But cost.
> >
> Oh yeah, definitely cheap to make but not necessarily cheap to buy and
> most definitely in the majority. I've rarely seen a set of retail jump
> leads that were anything like man enough to start a car straight away.

16mm meter tails can be bought from TLC for a couple of quid a metre. So
say 8 quid for the wire and 5 for decent clips. So should be on Ebay for
this sort of cost. Very flexible ones will cost more.

> Having said that, I'd rather let the 'dead' vehicle get some charge from
> a cheap set of leads and have it start from its own battery. Much kinder
> to my alternator and battery.

Indeed. But if the battery is very flat you'll still need decent leads.
There's a danger of cheap ones melting.

> If the person asking for help hasn't got enough patience to wait for
> 5-10 minutes then they can get stuffed, I usually find most are grateful
> just to sit in a nice warm car for a while after being stranded anyway.

--
*A journey of a thousand sites begins with a single click *

Dave Plowman dave(a)davesound.co.uk London SW 12

From: Bill Wright on 7 Sep 2009 14:51

"Dave Plowman" <dave(a)davesound.co.uk> wrote in message
news:5096f4daf7dave(a)davenoise.co.uk...
> In article <1fm8a5lpam5u5a019rtdd6dlod7ob7rf6d(a)4ax.com>,
> Laurence Payne <lp(a)laurencepayne.co.uk> wrote:
>> >It's 90 quid for 20 AH. My new battery was 36 quid for 40 AH.
>
>> And if you keep a spare at home, charged and ready, it can compete
>> with one of these boxes.
>
> I have a spare which doubles as the standby for the central heating should
> we have a power failure. Since doing that installation we haven't had one.
> ;-)

After the miners' strike I built a second coal house and put three tons of
coal in it. There never was another strike and eventually we went over to
gas anyway. I have a dipalidated building containing three tons of coal on
my hands. Suggestions?

Bill


From: ARWadsworth on 7 Sep 2009 17:58

"Bill Wright" <insertmybusinessname(a)f2s.com> wrote in message
news:qNudnSoXKoO_yzjXnZ2dnUVZ8i2dnZ2d(a)pipex.net...
>
> "Dave Plowman" <dave(a)davesound.co.uk> wrote in message
> news:5096f4daf7dave(a)davenoise.co.uk...
>> In article <1fm8a5lpam5u5a019rtdd6dlod7ob7rf6d(a)4ax.com>,
>> Laurence Payne <lp(a)laurencepayne.co.uk> wrote:
>>> >It's 90 quid for 20 AH. My new battery was 36 quid for 40 AH.
>>
>>> And if you keep a spare at home, charged and ready, it can compete
>>> with one of these boxes.
>>
>> I have a spare which doubles as the standby for the central heating
>> should
>> we have a power failure. Since doing that installation we haven't had
>> one.
>> ;-)
>
> After the miners' strike I built a second coal house and put three tons of
> coal in it. There never was another strike and eventually we went over to
> gas anyway. I have a dipalidated building containing three tons of coal on
> my hands. Suggestions?
>
> Bill


Some sort of fire maybe?

You could always burn your gas bills on a coal fire.

Adam

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