Car battery jump-starting gizmo?
in [UK Drivers]
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From: RubberBiker on 5 Sep 2009 12:49 Do you really see a little glove-compartment sized battery turning over the starter motor on a car? Starer motors draw around 80A. That's why jump leads are thick heavy wires. Is that little flex and a cigarette lighter socket going to pass 80A? Still - it can probably deliver enough juice so you can listen to the radio until someone arrives with jump leads.
From: NT on 5 Sep 2009 13:16 On Sep 5, 5:49 pm, RubberBiker <d...(a)gglz.com> wrote: > Do you really see a little glove-compartment sized battery turning > over the starter motor on a car? > > Starer motors draw around 80A. > > That's why jump leads are thick heavy wires. > > Is that little flex and a cigarette lighter socket going to pass 80A? > > Still - it can probably deliver enough juice so you can listen to the > radio until someone arrives with jump leads. £40 would get you a toolkit that works. Just teach them how to push start it, and to engage gear when there isnt enough power to turn the engine over. NT
From: Bod on 5 Sep 2009 13:21 NT wrote: > On Sep 5, 5:49 pm, RubberBiker <d...(a)gglz.com> wrote: >> Do you really see a little glove-compartment sized battery turning >> over the starter motor on a car? >> >> Starer motors draw around 80A. >> >> That's why jump leads are thick heavy wires. >> >> Is that little flex and a cigarette lighter socket going to pass 80A? >> >> Still - it can probably deliver enough juice so you can listen to the >> radio until someone arrives with jump leads. > > > �40 would get you a toolkit that works. Just teach them how to push > start it, and to engage gear when there isnt enough power to turn the > engine over. > > > NT I thought starter motors draw a couple of hundred amps.
From: Fredxx on 5 Sep 2009 13:27 "Bod" <bodron57(a)tiscali.co.uk> wrote in message news:7gfl0cF2pd0kaU1(a)mid.individual.net... > NT wrote: >> On Sep 5, 5:49 pm, RubberBiker <d...(a)gglz.com> wrote: >>> Do you really see a little glove-compartment sized battery turning >>> over the starter motor on a car? >>> >>> Starer motors draw around 80A. >>> >>> That's why jump leads are thick heavy wires. >>> >>> Is that little flex and a cigarette lighter socket going to pass 80A? >>> >>> Still - it can probably deliver enough juice so you can listen to the >>> radio until someone arrives with jump leads. >> >> >> �40 would get you a toolkit that works. Just teach them how to push >> start it, and to engage gear when there isnt enough power to turn the >> engine over. >> >> >> NT > > I thought starter motors draw a couple of hundred amps. They tend to. The idea of plugging a small battery into a a cigar lighter socket is to put a sufficient charge into the car battery so it can then turn over the engine. If the car battery is completely naff, then this whole idea fails.
From: dennis on 5 Sep 2009 15:12
"NT" <meow2222(a)care2.com> wrote in message news:da068d9d-ab2c-46ac-bcb3-c9a2db7e2d00(a)q7g2000yqi.googlegroups.com... > On Sep 5, 5:49 pm, RubberBiker <d...(a)gglz.com> wrote: >> Do you really see a little glove-compartment sized battery turning >> over the starter motor on a car? >> >> Starer motors draw around 80A. >> >> That's why jump leads are thick heavy wires. >> >> Is that little flex and a cigarette lighter socket going to pass 80A? >> >> Still - it can probably deliver enough juice so you can listen to the >> radio until someone arrives with jump leads. > > > �40 would get you a toolkit that works. Just teach them how to push > start it, and to engage gear when there isnt enough power to turn the > engine over. You can't push start many new cars. If you don't have enough volts in the battery the electronic engine management doesn't work properly and you risk doing something bad like blowing the cat to bits. As for the subject.. it claims to be an emergency charger not a jump starter. You are supposed to plug it in for a few minutes while it charges the main battery and then start the car. This could well work if its battery has enough capacity. > > > NT |