

| Subject: | Re: Battery dead AGAIN!!!! |
| From: | Dennis Haynes |
| Date: | Sun, 29 Apr 2007 08:18:02 -0400 |
1.3 amps can be a power door lock issue or an interior light. Dennis >From: PB <pbrattan@GMAIL.COM> >Reply-To: PB <pbrattan@GMAIL.COM> >To: vanagon@GERRY.VANAGON.COM >Subject: Re: Battery dead AGAIN!!!! >Date: Sat, 28 Apr 2007 20:06:49 -0700 > >I really appreciate all of your help. I wouldn't know what to do on my >own. I charged the battery and hooked up the voltmeter. There's a 1.3 A >draw on the battery. It was too dark to go further and start pulling >fuses, >but I'll do that tomorrow. > >I guess things like this just happen all of a sudden. As I said, it worked >perfectly for 10 days, and it came out perfect on a pre-purchase mechanical >checkup on April 14. About 2 days ago I had turned on the stereo with the >motor off for about 10 minutes. The dead battery occurred the next day, so >I would think it has something to do with that. The stereo has a 6 cd >changer, and a giant amp and woofer that take up the whole underseat >compartment in the back. I'll be checking into downsizing the sound system >because I would really like to have some, if not all of my storage space >back. I don't know how much the stereo is pulling from the battery. I >guess I'll have to look up the specs. Tomorrow I'll pull the stereo fuse >first. >Patti >*********************** >On 4/28/07, Jack <john.cook58@verizon.net> wrote: >> >>Patti, >> >>6 amps is a safe charge rate for a Vanagon starting battery, the one under >>the >>passenger seat. If the auxiliary battery is roughly the same physical >>size, >>then 6 amps should be ok for it also. Keep the windows open or cracked a >>bit >>during charging. >> >>I haven't been following the thread closely but I think Dennis did warn >>you >>that deep discharging of starting type batteries will eventually damage >>them. >>Consider disconnecting the negative terminal (black or smaller of the two) >>of >>each battery when you aren't using the vehicle and until you get to the >>bottom >>of the problem. (Disconnecting either terminal will work but there's less >>chance of an accidental short with a wrench with the negative terminal.) >> >>If you aren't comfortable working around batteries, try to get someone to >>help >>until you are. Or just be very careful with wrenches & stuff. Shorting a >>battery with a wrench is not a pleasant experience - at best. Feel free >>to ask >>more questions. There is nothing about Vanagon electrics that can't be >>answered by the experts on this list. >> >>//Jack >> >> >>Date sent: Sat, 28 Apr 2007 21:09:15 -0400 >>From: Kim Brennan <kimbrennan@MAC.COM> >>Subject: Re: Battery dead AGAIN!!!! >>To: vanagon@GERRY.VANAGON.COM >>Send reply to: Kim Brennan <kimbrennan@MAC.COM> >> >> > If "excessive" current is applied to a lead acid battery, the >> > electrolyte (sulfuric acid) will bubble. What's actually occurring is >> > that the extra electricity is splitting the water portion of the acid >> > into hydrogen and oxygen. Since most batteries are "sealed" it isn't >> > easy to add water back to replace that which has been split (and the >> > vapor vented.) Hence, you can consider this "harmful" to the battery. >> > >> > If enough of the water is converted to vapor (and hence lost) the >> > lead plates are exposed. Lead can oxidize pretty easily, and lead >> > oxide can act as an insulator, reducing the capacity and >> > effectiveness of the battery. >> > >> > >> > On Apr 28, 2007, at 7:07 PM, PB wrote: >> > >> > > Matt, >> > > Thanks very much for instructions that even I can understand! I'm >> > > charging >> > > the battery on 2 amps now and will let you know how the test goes. >> > > (I'm >> > > using 2 amps because somehow I think that 6 amps would be harmful. >> > > Is that >> > > right, or can I use 6 amps?) >> > > Patti >>
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