Article View: sci.electronics.design
Article #429Re: Semi [OT]: What is the black deposit on the underside of wet lead acid battery vent caps?
From: Rheilly Phoull
Date: Mon, 27 Jun 2011 07:53
Date: Mon, 27 Jun 2011 07:53
15 lines
2059 bytes
2059 bytes
On 6/27/2011 2:42 PM, Dennis wrote: > Does anyone know what the black smudgy deposit is that forms on the > underside of wet cell lead acid automotive batteries is? > > It looks a little like soot and is easily wiped away. > > I've heard it can suggest the battery is failing. Is there any substance to > this or is it just an anecdotal red herring? > > Cheers > D. > > The technical term is "Krud" :-) Might be worn off the casing ??
Technical Details
Message-ID:
<MqmdnVeUp46ZqpXTnZ2dnUVZ_vKdnZ2d@westnet.com.au>Path:
arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.westnet.com.au!news.westnet.com.au.POSTED!not-for-mailReferences:
<o7-dnSpXZMnau5XTnZ2dnUVZ_o6dnZ2d@westnet.com.au>Show Full Headers
Complete Article Headers
X-Google-Thread: a5a6238865,9fd0da4172ca4fb2 X-Google-Attributes: gida5a6238865,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.westnet.com.au!news.westnet.com.au.POSTED!not-for-mail NNTP-Posting-Date: Mon, 27 Jun 2011 02:53:40 -0500 Date: Mon, 27 Jun 2011 15:53:29 +0800 From: Rheilly Phoull <rheilly@bigslong.com> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.18) Gecko/20110616 Lightning/1.0b2 Thunderbird/3.1.11 MIME-Version: 1.0 Newsgroups: sci.electronics.design,aus.electronics Subject: Re: Semi [OT]: What is the black deposit on the underside of wet lead acid battery vent caps? References: <o7-dnSpXZMnau5XTnZ2dnUVZ_o6dnZ2d@westnet.com.au> In-Reply-To: <o7-dnSpXZMnau5XTnZ2dnUVZ_o6dnZ2d@westnet.com.au> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <MqmdnVeUp46ZqpXTnZ2dnUVZ_vKdnZ2d@westnet.com.au> Lines: 16 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 58.7.232.79 X-Trace: sv3-u0RmSR60Yjgaj5BdNeVHiL/j2sqTxYf9ZP0spNSJdB0CFQzaZfZyJLGRnk6Hi2H2grWnj83igx6J9qO!r/q5wkgYHeW8KG2f3Cd22GieMfjRYM3FvixkOC8AoB+STic4Sp4qegUaZPKaWV4Uok5JznZPSFQN!qC8/XJxviUFmxOg3UA== X-Complaints-To: abuse@westnet.com.au X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1768