Forums

Charge gel cell with car charger?

Started by Mike Cook February 24, 2013
On Wed, 27 Feb 2013 06:38:06 -0800, dave <ricketzz@earthlink.net>
wrote:

> >> >> So you know it all. Great! >> > > I specifically stated that I did not. You may be a good engineer but >you are a shitty reader.
I can't help it if you can't make up your mind.
On Wed, 27 Feb 2013 16:17:04 -0000, "Ian Field"
<gangprobing.alien@ntlworld.com> wrote:

> > >"John Fields" <jfields@austininstruments.com> wrote in message >news:mcbqi8t00ur6s6sk6kmuskjtkpg28fegtm@4ax.com...
>> My request was about having you describe the dynamics of a >> light-bulb-in-series-with-a-battery current limiter which, no matter >> how loudly or how long you squeal excuses about why you can't, you >> can't, of course. > >The bulb trick isn't that great because of its pronounced PTC >characteristic - as the filament voltage decreases the current doesn't >decrease in due proportion.
--- ??? If a you want the current to change linearly with voltage, then a simple resistor will do the trick so, obviously, you don't understand how the bulb trick works. ---
>I did try to dumb it down for you - I do hope I didn't use too many big >words for you!
--- The words are no problem but it seems, for you, the theory _is_. Would you like me to explain how the bulb trick works in terms even you could understand? -- JF
On Wed, 27 Feb 2013 16:17:04 -0000, "Ian Field"
<gangprobing.alien@ntlworld.com> wrote:

> > >"John Fields" <jfields@austininstruments.com> wrote in message >news:mcbqi8t00ur6s6sk6kmuskjtkpg28fegtm@4ax.com... >> On Tue, 26 Feb 2013 21:43:13 -0000, "Ian Field" >> <gangprobing.alien@ntlworld.com> wrote: >> >>> >>> >>>"John Fields" <jfields@austininstruments.com> wrote in message >>>news:gh9qi8t3alcietnh2r674clj7ne976j2af@4ax.com... >>>> On Tue, 26 Feb 2013 16:46:14 -0000, "Ian Field" >>>> <gangprobing.alien@ntlworld.com> wrote: >>>> >>>>> >>>>> >>>>>"John Fields" <jfields@austininstruments.com> wrote in message >>>>>news:2dvni890e0mu6d56odaunfsqgu8ssjt7qm@4ax.com... >>>>>> On Mon, 25 Feb 2013 22:36:52 -0000, "Ian Field" >>>>>> <gangprobing.alien@ntlworld.com> wrote: >>>>>> >>>>>>> >>>>>>> >>>>>>>"Jan Panteltje" <pNaonStpealmtje@yahoo.com> wrote in message >>>>>>>news:kgcpgh$ipp$1@news.albasani.net... >>>>>>>> On a sunny day (Sun, 24 Feb 2013 00:06:18 -0800) it happened Mike >>>>>>>> Cook >>>>>>>> <mcham@NOTyahoo.com> wrote in >>>>>>>> <0001HW.CD4F09FA05B8251DB04179BF@news.eternal-september.org>: >>>>>>>> >>>>>>>>>A friend has a battery powered Ryobi lawn trimmer ("weed whacker") >>>>>>>>>which >>>>>>>>>doesn't work. The 12vdc wall wart puts out only ~ 12.4v. >>>>>>>>> >>>>>>>>>I charged the lead-acid gel cell using a car charger. The charge >>>>>>>>>rate >>>>>>>>>(selectable) was 0.5A. Afterward the trimmer seemed to work as new. >>>>>>>>> >>>>>>>>>Can the car charger be used to charge this battery? He can install a >>>>>>>>>timer >>>>>>>>>to >>>>>>>>>limit charge time if that's something required. >>>>>>>>> >>>>>>>>>Thanks. >>>>>>>> >>>>>>>> Old trick was to put a car headlight or some other low voltage bulb >>>>>>>> (break >>>>>>>> light) >>>>>>>> in series as current limiter. >>>>>>>> Maybe modern car has only LEDs, dunno, :-) >>>>>>> >>>>>>> >>>>>>>Its a trick I often use if I have to, but increasingly I turn to the >>>>>>>more >>>>>>>modern electronic/microcontroller type chargers that automatically >>>>>>>switch >>>>>>>to >>>>>>>trickle charge. >>>>>> >>>>>> --- >>>>>> That's a good thing, since it puts you squarely into the rank of a >>>>>> "consumer", where you clearly belong, instead of into the ranks of >>>>>> designers, where you've clearly demonstrated you don't belong. >>>>>> >>>>>> I could be wrong of course, >>>>> >>>>>Indeed. >>>> >>>> --- >>>> But, more than likely not, since I requested that you elaborate with >>>> an explanation of your "tricks" >>> >>>No you didn't (the senility really is robbing your faculties!) The trick >>>was >>>already described by someone else - I merely replied I do that too (and >>>no - >>>I can't be bothered drawing pictures because you're too thick to >>>understand). >> >> --- >> My request was about having you describe the dynamics of a >> light-bulb-in-series-with-a-battery current limiter which, no matter >> how loudly or how long you squeal excuses about why you can't, you >> can't, of course. > >The bulb trick isn't that great because of its pronounced PTC >characteristic - as the filament voltage decreases the current doesn't >decrease in due proportion. > >I did try to dumb it down for you - I do hope I didn't use too many big >words for you!
--- Posted the same thing twice, huh? Must be exciting to have some old dude ruffle your feathers to the point where you don't know whether you're coming or going! Strange, but that reminds me of an old limerick: There once was a young man from Kent whose dick was so long that it bent. To save him some trouble, he stuck it in double, And instead of coming he went. Certainly a problem you'll never have to contend with. -- JF
On Wed, 27 Feb 2013 16:22:39 -0000, "Ian Field"
<gangprobing.alien@ntlworld.com> wrote:


>I'm not so sure "victim" is quite the right word for whoever JF singles out >for a tirade of foul mouthed abuse. He's a sad pathetic figure who's antics >serve only to further demonstrate to onlookers that he's lost the plot.
--- You pretend to sagacity and literacy and yet use a contraction when the use of a possessive pronoun is de rigueur? Tsk, tsk, tsk. ---
>He's clearly too demented to have any embarassment about being so brave >from behind his keyboard.
--- It's amazing how semi-macho you faggot pukes get when you've been cornered. -- JF
On Wed, 27 Feb 2013 16:25:26 -0000, "Ian Field"
<gangprobing.alien@ntlworld.com> wrote:

> > >"John Fields" <jfields@austininstruments.com> wrote in message >news:cckri8tludvtpmuq59i88tcnmgqa89h0t9@4ax.com... >> On Tue, 26 Feb 2013 18:44:16 -0500, Jamie >> <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote: >> >>>John Fields wrote: >> >>>> Wow, with your super-quick response, you must really want me to notice >>>> you and have you suck my dick or have me fuck you up the ass... >>>> >>>> Sorry, Charlie... >>>> >>>One of your fetishes? >>> >>>Jamie >> >> --- >> No, just conjecture, but it's interesting how, when the conversation >> turns lewd, you people are drawn to it like a moth to a flame. > >As you're so keen - you can pick up butt pirates while you're standing on >street corners shouting at the passing traffic.
--- It seems to me that you're the captain of that ship, you're flying the "Jolly Roger" with crossed dicks, and there's never shore leave for your crew. Another limerick comes to mind: Columbus had a cabin boy, and Ian was the nipper. He lined his ass with broken glass and circumcised the skipper. -- JF

"John Fields" <jfields@austininstruments.com> wrote in message 
news:20qsi85cd3m4f18uhs253s4tilbeu28gs9@4ax.com...
> On Wed, 27 Feb 2013 16:17:04 -0000, "Ian Field" > <gangprobing.alien@ntlworld.com> wrote: > >> >> >>"John Fields" <jfields@austininstruments.com> wrote in message >>news:mcbqi8t00ur6s6sk6kmuskjtkpg28fegtm@4ax.com... >>> On Tue, 26 Feb 2013 21:43:13 -0000, "Ian Field" >>> <gangprobing.alien@ntlworld.com> wrote: >>> >>>> >>>> >>>>"John Fields" <jfields@austininstruments.com> wrote in message >>>>news:gh9qi8t3alcietnh2r674clj7ne976j2af@4ax.com... >>>>> On Tue, 26 Feb 2013 16:46:14 -0000, "Ian Field" >>>>> <gangprobing.alien@ntlworld.com> wrote: >>>>> >>>>>> >>>>>> >>>>>>"John Fields" <jfields@austininstruments.com> wrote in message >>>>>>news:2dvni890e0mu6d56odaunfsqgu8ssjt7qm@4ax.com... >>>>>>> On Mon, 25 Feb 2013 22:36:52 -0000, "Ian Field" >>>>>>> <gangprobing.alien@ntlworld.com> wrote: >>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>"Jan Panteltje" <pNaonStpealmtje@yahoo.com> wrote in message >>>>>>>>news:kgcpgh$ipp$1@news.albasani.net... >>>>>>>>> On a sunny day (Sun, 24 Feb 2013 00:06:18 -0800) it happened Mike >>>>>>>>> Cook >>>>>>>>> <mcham@NOTyahoo.com> wrote in >>>>>>>>> <0001HW.CD4F09FA05B8251DB04179BF@news.eternal-september.org>: >>>>>>>>> >>>>>>>>>>A friend has a battery powered Ryobi lawn trimmer ("weed whacker") >>>>>>>>>>which >>>>>>>>>>doesn't work. The 12vdc wall wart puts out only ~ 12.4v. >>>>>>>>>> >>>>>>>>>>I charged the lead-acid gel cell using a car charger. The charge >>>>>>>>>>rate >>>>>>>>>>(selectable) was 0.5A. Afterward the trimmer seemed to work as >>>>>>>>>>new. >>>>>>>>>> >>>>>>>>>>Can the car charger be used to charge this battery? He can install >>>>>>>>>>a >>>>>>>>>>timer >>>>>>>>>>to >>>>>>>>>>limit charge time if that's something required. >>>>>>>>>> >>>>>>>>>>Thanks. >>>>>>>>> >>>>>>>>> Old trick was to put a car headlight or some other low voltage >>>>>>>>> bulb >>>>>>>>> (break >>>>>>>>> light) >>>>>>>>> in series as current limiter. >>>>>>>>> Maybe modern car has only LEDs, dunno, :-) >>>>>>>> >>>>>>>> >>>>>>>>Its a trick I often use if I have to, but increasingly I turn to the >>>>>>>>more >>>>>>>>modern electronic/microcontroller type chargers that automatically >>>>>>>>switch >>>>>>>>to >>>>>>>>trickle charge. >>>>>>> >>>>>>> --- >>>>>>> That's a good thing, since it puts you squarely into the rank of a >>>>>>> "consumer", where you clearly belong, instead of into the ranks of >>>>>>> designers, where you've clearly demonstrated you don't belong. >>>>>>> >>>>>>> I could be wrong of course, >>>>>> >>>>>>Indeed. >>>>> >>>>> --- >>>>> But, more than likely not, since I requested that you elaborate with >>>>> an explanation of your "tricks" >>>> >>>>No you didn't (the senility really is robbing your faculties!) The trick >>>>was >>>>already described by someone else - I merely replied I do that too (and >>>>no - >>>>I can't be bothered drawing pictures because you're too thick to >>>>understand). >>> >>> --- >>> My request was about having you describe the dynamics of a >>> light-bulb-in-series-with-a-battery current limiter which, no matter >>> how loudly or how long you squeal excuses about why you can't, you >>> can't, of course. >> >>The bulb trick isn't that great because of its pronounced PTC >>characteristic - as the filament voltage decreases the current doesn't >>decrease in due proportion. >> >>I did try to dumb it down for you - I do hope I didn't use too many big >>words for you! > > --- > Posted the same thing twice, huh?
Actually I was wondering if WLM is yet another flaky POS designed by you - it sometimes jams up in the outbox, then sends it twice next time the app is started.

"John Fields" <jfields@austininstruments.com> wrote in message 
news:rtosi81fiefb5ob9i0r6vqo2ki5cdhkgrt@4ax.com...
> On Wed, 27 Feb 2013 16:17:04 -0000, "Ian Field" > <gangprobing.alien@ntlworld.com> wrote: > >> >> >>"John Fields" <jfields@austininstruments.com> wrote in message >>news:mcbqi8t00ur6s6sk6kmuskjtkpg28fegtm@4ax.com... > >>> My request was about having you describe the dynamics of a >>> light-bulb-in-series-with-a-battery current limiter which, no matter >>> how loudly or how long you squeal excuses about why you can't, you >>> can't, of course. >> >>The bulb trick isn't that great because of its pronounced PTC >>characteristic - as the filament voltage decreases the current doesn't >>decrease in due proportion. > > --- > ??? > > If a you want the current to change linearly with voltage, then a > simple resistor will do the trick so, obviously, you don't understand > how the bulb trick works. > --- > >>I did try to dumb it down for you - I do hope I didn't use too many big >>words for you! > > --- > The words are no problem but it seems, for you, the theory _is_. > > Would you like me to explain how the bulb trick works in terms even > you could understand?
You're so scattered I wouldn't trust anything from you even if it "looked" right! All that weed you keep smoking has given you dopers crott.
John Fields wrote:
> On Tue, 26 Feb 2013 18:44:16 -0500, Jamie > <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote: > > >>John Fields wrote: > > >>>Wow, with your super-quick response, you must really want me to notice >>>you and have you suck my dick or have me fuck you up the ass... >>> >>>Sorry, Charlie... >>> >> >>One of your fetishes? >> >>Jamie > > > --- > No, just conjecture, but it's interesting how, when the conversation > turns lewd, you people are drawn to it like a moth to a flame. >
Well, a lot of us love to watch a circus side show.. Jamie

"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote in message 
news:vOvXs.72571$lC2.58526@newsfe25.iad...
> John Fields wrote: >> On Tue, 26 Feb 2013 18:44:16 -0500, Jamie >> <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote: >> >> >>>John Fields wrote: >> >> >>>>Wow, with your super-quick response, you must really want me to notice >>>>you and have you suck my dick or have me fuck you up the ass... >>>> >>>>Sorry, Charlie... >>>> >>> >>>One of your fetishes? >>> >>>Jamie >> >> >> --- >> No, just conjecture, but it's interesting how, when the conversation >> turns lewd, you people are drawn to it like a moth to a flame. >> > Well, a lot of us love to watch a circus side show..
And it was JF who opened the door with his reference to his favourite pastime of cocksucking.
On 2/27/2013 12:09 PM, John Fields wrote:
> On Wed, 27 Feb 2013 16:17:04 -0000, "Ian Field" > <gangprobing.alien@ntlworld.com> wrote: > >> >> >> "John Fields"<jfields@austininstruments.com> wrote in message >> news:mcbqi8t00ur6s6sk6kmuskjtkpg28fegtm@4ax.com... > >>> My request was about having you describe the dynamics of a >>> light-bulb-in-series-with-a-battery current limiter which, no matter >>> how loudly or how long you squeal excuses about why you can't, you >>> can't, of course. >> >> The bulb trick isn't that great because of its pronounced PTC >> characteristic - as the filament voltage decreases the current doesn't >> decrease in due proportion. > > --- > ??? > > If a you want the current to change linearly with voltage, then a > simple resistor will do the trick so, obviously, you don't understand > how the bulb trick works. > --- > >> I did try to dumb it down for you - I do hope I didn't use too many big >> words for you! > > --- > The words are no problem but it seems, for you, the theory _is_. > > Would you like me to explain how the bulb trick works in terms even > you could understand?
I understand how the light bulb works, but I'm very interested in hearing YOUR explanation.