Battery Charger Overcharge?
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05-13-2007, 11:35
Post: #11
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Battery Charger Overcharge?
There is a maximum charge rate that you do not want to exceed if you want to
preserve the life of your batteries. If you have four deep cycle batteries 6 volt batteries this would be between 10% and 13% of the battery's rated 20-hour capacity. In the case of a FC with four 6 volt batteries (T105) this would be around 40 amps. ANY well regulated charger will charge around this rate no matter what its maximum output is. The extra capacity will allow for the operation of other devices while the batteries are being charged. On our coach since we do not use inverters this need is met with a 60 amp charger and meets our average demand. - Chuck Wheeler - 82 FC 31 SB Fort Worth, TX _____ From: WanderlodgeForum@yahoogroups.com [mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Tom Warner Sent: Sunday, May 13, 2007 2:07 PM To: WanderlodgeForum@yahoogroups.com Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? Unless you are going to exclusively use a RV park and shore power you do not want to use a 40 amp charger in a Bluebird. Again your choices should be driven by your individual family requirements. If you dry camp at all then you want to recharge your batteries quickly and efficiently. Even the FC models have at least 4 six volt deep cycle batteries or 450AH of battery power. If you use the 50% rule to discharge them to before recharging it would take a truecharge 40 approximately 5.5 hours to recharge the batteries. With a refurbished Xantrex Freedome 458 inverter/charger that furnishes 100 amps charging and 2000 watts of inverter power it would take approximately 2.25 hours to recharge. Price of the truecharge about $450 http://www.xantrex. <http://www.xantrex.com/productcart/pc/vi...Category=2 8&page=2.> com/productcart/pc/viewCat_h.asp?ProdSort=1&idCategory=28&page=2. Price of the refurbished 458 $525. http://www.xantrex. <http://www.xantrex.com/productcart/pc/vi...dproduct=1 06> com/productcart/pc/viewPrd.asp?idcategory=23&idproduct=106 Tom warner vernon center,ny 1985 PT 40 At 11:52 AM 5/13/2007, you wrote: >Bob, I have had about six truecharge 40+ models and they have not >been reliable for me. When they fail the factory told me they are >unrepairable. Also they only put out 40 amps, so at night with the >lights on, there is not much left over for charging. Other people >may have better experience but I'm not buying anymore. FWIW > >Dan >81RB33 >Jackson, MS > ----- Original Message ----- > From: bloomas > To: WanderlodgeForum@ yahoogroups.com > Sent: Sunday, May 13, 2007 10:44 AM > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > ----- Original Message ----- > From: Pete Masterson > To: WanderlodgeForum@ yahoogroups.com > Sent: Sunday, May 13, 2007 8:59 AM > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > . > > I personally do not care for the old technologically when it > comes to battery chargers. > > If it were me I would look into a truecgarge > http://www.xantrex. <http://www.xantrex.com/web/id/3/type.asp> com/web/id/3/type.asp > > You can count on it to keep your batteries at the correct voltage. > > Are they a little pricey yes.You only get what you payfor. > > Bob Loomas 1985 PT 36 > > > Hey all, > > > > I was reading through the posts about battery charger replacement in > > an 87, and started to wonder about whether or not I have to worry > > about overcharging on the charger in my 78. Is this an issue, or does > > it step down as the batteries reach capacity to a trickle charge if > > any charge at all? > > > > [Non-text portions of this message have been removed] > > > > > > >---------------------------------------------------------- > > > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.467 / Virus Database: 269.7.0/803 - Release Date: > 5/13/2007 12:17 PM > > >[Non-text portions of this message have been removed] > > > > >Yahoo! Groups Links > > > [Non-text portions of this message have been removed] |
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05-13-2007, 12:05
Post: #12
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Battery Charger Overcharge?
there we go a simple explantion why bigger is not always better
Thanks Chuck Stephen 77fc35 --- In WanderlodgeForum@yahoogroups.com, "Chuck Wheeler" > > There is a maximum charge rate that you do not want to exceed if you want to > preserve the life of your batteries. If you have four deep cycle batteries > 6 volt batteries this would be between 10% and 13% of the battery's rated > 20-hour capacity. In the case of a FC with four 6 volt batteries (T105) > this would be around 40 amps. ANY well regulated charger will charge around > this rate no matter what its maximum output is. The extra capacity will > allow for the operation of other devices while the batteries are being > charged. On our coach since we do not use inverters this need is met with a > 60 amp charger and meets our average demand. > > > > - Chuck Wheeler - > > 82 FC 31 SB > > Fort Worth, TX > > _____ > > From: WanderlodgeForum@yahoogroups.com > [mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Tom Warner > Sent: Sunday, May 13, 2007 2:07 PM > To: WanderlodgeForum@yahoogroups.com > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > Unless you are going to exclusively use a RV park and shore power you > do not want to use a 40 amp charger in a Bluebird. Again your > choices should be driven by your individual family requirements. If > you dry camp at all then you want to recharge your batteries quickly > and efficiently. Even the FC models have at least 4 six volt deep > cycle batteries or 450AH of battery power. If you use the 50% rule to > discharge them to before recharging it would take a truecharge > 40 approximately 5.5 hours to recharge the batteries. With a > refurbished Xantrex Freedome 458 inverter/charger that furnishes 100 > amps charging and 2000 watts of inverter power it would take > approximately 2.25 hours to recharge. Price of the truecharge about > $450 > http://www.xantrex. > <http://www.xantrex.com/productcart/pc/vi...Category=2 > 8&page=2.> com/productcart/pc/viewCat_h.asp?ProdSort=1&idCategory=28&page=2. > > > Price of the refurbished > 458 $525. > http://www.xantrex. > <http://www.xantrex.com/productcart/pc/vi...dproduct=1 > 06> com/productcart/pc/viewPrd.asp?idcategory=23&idproduct=106 > Tom warner > vernon center,ny > 1985 PT 40 > > At 11:52 AM 5/13/2007, you wrote: > >Bob, I have had about six truecharge 40+ models and they have not > >been reliable for me. When they fail the factory told me they are > >unrepairable. Also they only put out 40 amps, so at night with the > >lights on, there is not much left over for charging. Other people > >may have better experience but I'm not buying anymore. FWIW > > > >Dan > >81RB33 > >Jackson, MS > > ----- Original Message ----- > > From: bloomas > > To: WanderlodgeForum@ > yahoogroups.com > > Sent: Sunday, May 13, 2007 10:44 AM > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > > > ----- Original Message ----- > > From: Pete Masterson > > To: WanderlodgeForum@ > yahoogroups.com > > Sent: Sunday, May 13, 2007 8:59 AM > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > . > > > > I personally do not care for the old technologically when it > > comes to battery chargers. > > > > If it were me I would look into a truecgarge > > http://www.xantrex. <http://www.xantrex.com/web/id/3/type.asp> > com/web/id/3/type.asp > > > > You can count on it to keep your batteries at the correct voltage. > > > > Are they a little pricey yes.You only get what you payfor. > > > > Bob Loomas 1985 PT 36 > > > > > Hey all, > > > > > > I was reading through the posts about battery charger replacement in > > > an 87, and started to wonder about whether or not I have to worry > > > about overcharging on the charger in my 78. Is this an issue, or does > > > it step down as the batteries reach capacity to a trickle charge if > > > any charge at all? > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > >---------------------------------------------------------- > > > > > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.467 / Virus Database: 269.7.0/803 - Release Date: > > 5/13/2007 12:17 PM > > > > > >[Non-text portions of this message have been removed] > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > [Non-text portions of this message have been removed] > |
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05-13-2007, 12:30
Post: #13
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Battery Charger Overcharge?
thanks Chuck.
On 13/05/07, Stephen Birtles > > there we go a simple explantion why bigger is not always better > > Thanks Chuck > > Stephen 77fc35 > > --- In WanderlodgeForum@yahoogroups.com > "Chuck Wheeler" > > > > > There is a maximum charge rate that you do not want to exceed if you > want to > > preserve the life of your batteries. If you have four deep cycle > batteries > > 6 volt batteries this would be between 10% and 13% of the battery's > rated > > 20-hour capacity. In the case of a FC with four 6 volt batteries (T105) > > this would be around 40 amps. ANY well regulated charger will > charge around > > this rate no matter what its maximum output is. The extra capacity will > > allow for the operation of other devices while the batteries are being > > charged. On our coach since we do not use inverters this need is > met with a > > 60 amp charger and meets our average demand. > > > > > > > > - Chuck Wheeler - > > > > 82 FC 31 SB > > > > Fort Worth, TX > > > > _____ > > > > From: WanderlodgeForum@yahoogroups.com > > [mailto:WanderlodgeForum@yahoogroups.com > On Behalf Of Tom Warner > > Sent: Sunday, May 13, 2007 2:07 PM > > To: WanderlodgeForum@yahoogroups.com > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > > > Unless you are going to exclusively use a RV park and shore power you > > do not want to use a 40 amp charger in a Bluebird. Again your > > choices should be driven by your individual family requirements. If > > you dry camp at all then you want to recharge your batteries quickly > > and efficiently. Even the FC models have at least 4 six volt deep > > cycle batteries or 450AH of battery power. If you use the 50% rule to > > discharge them to before recharging it would take a truecharge > > 40 approximately 5.5 hours to recharge the batteries. With a > > refurbished Xantrex Freedome 458 inverter/charger that furnishes 100 > > amps charging and 2000 watts of inverter power it would take > > approximately 2.25 hours to recharge. Price of the truecharge about > > $450 > > http://www.xantrex. > > > < > http://www.xantrex.com/productcart/pc/vi...Category=2 > > 8&page=2.> > com/productcart/pc/viewCat_h.asp?ProdSort=1&idCategory=28&page=2. > > > > > > Price of the refurbished > > 458 $525. > > http://www.xantrex. > > > < > http://www.xantrex.com/productcart/pc/vi...dproduct=1 > > 06> com/productcart/pc/viewPrd.asp?idcategory=23&idproduct=106 > > Tom warner > > vernon center,ny > > 1985 PT 40 > > > > At 11:52 AM 5/13/2007, you wrote: > > >Bob, I have had about six truecharge 40+ models and they have not > > >been reliable for me. When they fail the factory told me they are > > >unrepairable. Also they only put out 40 amps, so at night with the > > >lights on, there is not much left over for charging. Other people > > >may have better experience but I'm not buying anymore. FWIW > > > > > >Dan > > >81RB33 > > >Jackson, MS > > > ----- Original Message ----- > > > From: bloomas > > > To: WanderlodgeForum@ > > yahoogroups.com > > > Sent: Sunday, May 13, 2007 10:44 AM > > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > > > > > > > ----- Original Message ----- > > > From: Pete Masterson > > > To: WanderlodgeForum@ > > yahoogroups.com > > > Sent: Sunday, May 13, 2007 8:59 AM > > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > . > > > > > > I personally do not care for the old technologically when it > > > comes to battery chargers. > > > > > > If it were me I would look into a truecgarge > > > http://www.xantrex. <http://www.xantrex.com/web/id/3/type.asp> > > com/web/id/3/type.asp > > > > > > You can count on it to keep your batteries at the correct voltage. > > > > > > Are they a little pricey yes.You only get what you payfor. > > > > > > Bob Loomas 1985 PT 36 > > > > > > > Hey all, > > > > > > > > I was reading through the posts about battery charger replacement in > > > > an 87, and started to wonder about whether or not I have to worry > > > > about overcharging on the charger in my 78. Is this an issue, or > does > > > > it step down as the batteries reach capacity to a trickle charge if > > > > any charge at all? > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > > > > > >---------------------------------------------------------- > > > > > > > > > No virus found in this incoming message. > > > Checked by AVG Free Edition. > > > Version: 7.5.467 / Virus Database: 269.7.0/803 - Release Date: > > > 5/13/2007 12:17 PM > > > > > > > > >[Non-text portions of this message have been removed] > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > -- Rob, Sue & Merlin Robinson 94 WLWB [Non-text portions of this message have been removed] |
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05-13-2007, 12:41
Post: #14
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Battery Charger Overcharge?
I did have a Heart 2500 installed in the FC Bob. I installed it in
the same place as the OEM chargers were installed although it was NOT the ideal place to install it and if I were to do it over again it would be installed in the passenger front side bin directly across from the batteries. I also installed a Link 1000 with it. I never got it to work the way it was designed to work as far as current output.....never got above 90 amps. In addition the inverter portion had a problem with high power draws for the same reason even though I installed new 10/3 cables to a new sub-panel just below the main one. With the cables that the factory installed there was just to much resistance between the charger/inverter and the batteries...a run of over 60 feet. Remember the cables run from the batteries across to under the step and then across again to the charger bay. I did install new 4/0 copper cables including 4/0 cross connects between the four new 6V Interstate deep cycle batteries and although it was better still did not work the way I wanted. When I sold the FC I removed the Heart 2500 and installed a Trace charger/inverter that worked the way it was designed to. And No I never persued it further to figure out why the Heart would not work correctly but the Trace would. I now have the Heart installed in the PT in the same compartment as the OEM chargers. They are easy to install there once you do it Tom warner Vernon center,ny 1985 PT 40. At 07:26 PM 5/13/2007, you wrote: >--- In WanderlodgeForum@yahoogroups.com, Tom Warner > >wrote: > Tom When you had your FC did you have a hart 458 if so where did >you install it? > Bob Loomas 1985 PT 36 > > > > Unless you are going to exclusively use a RV park and shore power >you > > do not want to use a 40 amp charger in a Bluebird. Again your > > choices should be driven by your individual family requirements. >If > > you dry camp at all then you want to recharge your batteries >quickly > > and efficiently. Even the FC models have at least 4 six volt deep > > cycle batteries or 450AH of battery power. If you use the 50% rule >to > > discharge them to before recharging it would take a truecharge > > 40 approximately 5.5 hours to recharge the batteries. With a > > refurbished Xantrex Freedome 458 inverter/charger that furnishes >100 > > amps charging and 2000 watts of inverter power it would take > > approximately 2.25 hours to recharge. Price of the truecharge >about > > $450 > > http://www.xantrex.com/productcart/pc/viewCat_h.asp? >ProdSort=1&idCategory=28&page=2. > > > > Price of the refurbished > > 458 $525. > > http://www.xantrex.com/productcart/pc/viewPrd.asp? >idcategory=23&idproduct=106 > > Tom warner > > vernon center,ny > > 1985 PT 40 > > > > At 11:52 AM 5/13/2007, you wrote: > > >Bob, I have had about six truecharge 40+ models and they have >not > > >been reliable for me. When they fail the factory told me they >are > > >unrepairable. Also they only put out 40 amps, so at night with >the > > >lights on, there is not much left over for charging. Other >people > > >may have better experience but I'm not buying anymore. FWIW > > > > > >Dan > > >81RB33 > > >Jackson, MS > > > ----- Original Message ----- > > > From: bloomas > > > To: WanderlodgeForum@yahoogroups.com > > > Sent: Sunday, May 13, 2007 10:44 AM > > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > > > > > > > ----- Original Message ----- > > > From: Pete Masterson > > > To: WanderlodgeForum@yahoogroups.com > > > Sent: Sunday, May 13, 2007 8:59 AM > > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > . > > > > > > I personally do not care for the old technologically when it > > > comes to battery chargers. > > > > > > If it were me I would look into a truecgarge > > > http://www.xantrex.com/web/id/3/type.asp > > > > > > You can count on it to keep your batteries at the correct >voltage. > > > > > > Are they a little pricey yes.You only get what you payfor. > > > > > > Bob Loomas 1985 PT 36 > > > > > > > Hey all, > > > > > > > > I was reading through the posts about battery charger >replacement in > > > > an 87, and started to wonder about whether or not I have to >worry > > > > about overcharging on the charger in my 78. Is this an >issue, or does > > > > it step down as the batteries reach capacity to a trickle >charge if > > > > any charge at all? > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > > > > > >------------------------------------------------------------------ >------------ > > > > > > > > > No virus found in this incoming message. > > > Checked by AVG Free Edition. > > > Version: 7.5.467 / Virus Database: 269.7.0/803 - Release Date: > > > 5/13/2007 12:17 PM > > > > > > > > >[Non-text portions of this message have been removed] > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > |
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05-13-2007, 14:56
Post: #15
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Battery Charger Overcharge?
Chuck there is a lot of confusing information out there when it comes
to batteries and chargers and I am not advocating that I have the correct one, just the one I use based on my experience and using the information Xantrex provides with its charger/inverters. Keep in mind that we are talking about lead acid deep cycle batteries and 3 stage chargers and not normal car batteries or standard chargers (battery boilers) which I have seen installed in many motorhomes including Bluebirds very rough data. For instance we have to put 114 ah back into the battery for every 100ah we take out when we recharge. You can use a 25% rate of charge based on the battery capacity based on the 20 hour rating as you noted as long as you use a 3 stage charger that does not go over 14 volts (where gassing occurs) during the bulk charging cycle which Xantrex products are designed for. For the FC models with four 6 volt deep cycle batteries that is about 110 amps and for the PTs that came with six 6volt deep cycle batteries that is about 170 amps. The Heart 2500 that I have installed in my 1985 PT 40 is connected to six 6 volt deep cycle interstate batteries and they are monitored by a link 2000. When I normally turn on the generator to recharge my batteries the link does show between 120-130 amps depending on the state of charge of the batteries . If I start the engine up I see over 190-210 amps charging thru the link and thats not good for the batteries. Have not checked yet to see what size alternator I have but it is obviously over 200 amps. Xantrex and a few others notably Balmar saw this problem in trucks and Motorhomes and came out with an alternator 3 stage regulator which you can either add to the alternator or get with one of their Link models. RVs have a special use for the deep cycle batteries, we want to use them to 50% of their power (ideally) before we recharge them but we all know we dont live in a perfect world and sometimes they are discharged lower and thats all right since thats what they are designed for. They are rated for the number of times they can be deep cycled. If we pump to much current to the batteries we reduce their service life but that is sometimes a tradeoff we live with. With diesel fuel at $3 or beyond to run the generator I dont want to spend 8-9 hours to recharge my batteries with a truecharge 40 when I can cut it to 1/3 using a 130 amp charger. But then thats just me and each of you may have a different requirement and ideas. tom warner vernon center,ny 1985 PT 40 At 07:35 PM 5/13/2007, you wrote: >There is a maximum charge rate that you do not want to exceed if you want to >preserve the life of your batteries. If you have four deep cycle batteries >6 volt batteries this would be between 10% and 13% of the battery's rated >20-hour capacity. In the case of a FC with four 6 volt batteries (T105) >this would be around 40 amps. ANY well regulated charger will charge around >this rate no matter what its maximum output is. The extra capacity will >allow for the operation of other devices while the batteries are being >charged. On our coach since we do not use inverters this need is met with a >60 amp charger and meets our average demand. > > > >- Chuck Wheeler - > >82 FC 31 SB > >Fort Worth, TX > > _____ > >From: WanderlodgeForum@yahoogroups.com >[mailto:WanderlodgeForum@yahoogroups.com] On Behalf Of Tom Warner >Sent: Sunday, May 13, 2007 2:07 PM >To: WanderlodgeForum@yahoogroups.com >Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > >Unless you are going to exclusively use a RV park and shore power you >do not want to use a 40 amp charger in a Bluebird. Again your >choices should be driven by your individual family requirements. If >you dry camp at all then you want to recharge your batteries quickly >and efficiently. Even the FC models have at least 4 six volt deep >cycle batteries or 450AH of battery power. If you use the 50% rule to >discharge them to before recharging it would take a truecharge >40 approximately 5.5 hours to recharge the batteries. With a >refurbished Xantrex Freedome 458 inverter/charger that furnishes 100 >amps charging and 2000 watts of inverter power it would take >approximately 2.25 hours to recharge. Price of the truecharge about >$450 >http://www.xantrex. ><<http://www.xantrex.com/productcart/pc/vi...Category=2>h\ ttp://www.xantrex.com/productcart/pc/vie...Category=2 >8&page=2.> com/productcart/pc/viewCat_h.asp?ProdSort=1&idCategory=28&page=2. > > >Price of the refurbished >458 $525. >http://www.xantrex. ><<http://www.xantrex.com/productcart/pc/vi...dproduct=1>h\ ttp://www.xantrex.com/productcart/pc/vie...dproduct=1 >06> com/productcart/pc/viewPrd.asp?idcategory=23&idproduct=106 >Tom warner >vernon center,ny >1985 PT 40 > >At 11:52 AM 5/13/2007, you wrote: > >Bob, I have had about six truecharge 40+ models and they have not > >been reliable for me. When they fail the factory told me they are > >unrepairable. Also they only put out 40 amps, so at night with the > >lights on, there is not much left over for charging. Other people > >may have better experience but I'm not buying anymore. FWIW > > > >Dan > >81RB33 > >Jackson, MS > > ----- Original Message ----- > > From: bloomas > > To: WanderlodgeForum@ >yahoogroups.com > > Sent: Sunday, May 13, 2007 10:44 AM > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > > > > > ----- Original Message ----- > > From: Pete Masterson > > To: WanderlodgeForum@ >yahoogroups.com > > Sent: Sunday, May 13, 2007 8:59 AM > > Subject: Re: [WanderlodgeForum] Battery Charger Overcharge? > > > > . > > > > I personally do not care for the old technologically when it > > comes to battery chargers. > > > > If it were me I would look into a truecgarge > > http://www.xantrex. <http://www.xantrex.com/web/id/3/type.asp> >com/web/id/3/type.asp > > > > You can count on it to keep your batteries at the correct voltage. > > > > Are they a little pricey yes.You only get what you payfor. > > > > Bob Loomas 1985 PT 36 > > > > > Hey all, > > > > > > I was reading through the posts about battery charger replacement in > > > an 87, and started to wonder about whether or not I have to worry > > > about overcharging on the charger in my 78. Is this an issue, or does > > > it step down as the batteries reach capacity to a trickle charge if > > > any charge at all? > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > >---------------------------------------------------------- > > > > > > No virus found in this incoming message. > > Checked by AVG Free Edition. > > Version: 7.5.467 / Virus Database: 269.7.0/803 - Release Date: > > 5/13/2007 12:17 PM > > > > > >[Non-text portions of this message have been removed] > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > >[Non-text portions of this message have been removed] > > > > >Yahoo! Groups Links > > > |
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