Re: [RE-wrenches] Strings and series of batteries with reversereturn linkup

set tha all batteries have the same thermal conductance to ambient Darryl --- On Sat, 12/5/09, boB Gudgel b...@midnitesolar.com wrote: From: boB Gudgel b...@midnitesolar.com Subject: Re: [RE-wrenches] Strings and series of batteries with reverse return linkup To: RE-wrenches re-wrenches

Re: [RE-wrenches] Strings and series of batteries with reversereturn linkup

Darryl --- On Sat, 12/5/09, boB Gudgel b...@midnitesolar.com wrote: From: boB Gudgel b...@midnitesolar.com Subject: Re: [RE-wrenches] Strings and series of batteries with reverse return linkup To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Saturday, December 5, 2009, 3:45

Re: [RE-wrenches] Strings and series of batteries with reversereturn linkup

Ray Walters r...@solarray.com Subject: Re: [RE-wrenches] Strings and series of batteries with reverse return linkup To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Monday, December 7, 2009, 1:59 PM This is an excellent point that Jamie is making here. On electric vehicles, we do

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

Assume 3 parallel battery stings, with identical batteries of internal resistance r. Assume identical wire leads of resistance R. Then when the batteries have the same state of charge and their internal resistances are equal, one can solve for the current in each string. I1 = I3 I2 = I1 r /

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

Antony Tersol wrote: Assume 3 parallel battery stings, with identical batteries of internal resistance r. Assume identical wire leads of resistance R. Then when the batteries have the same state of charge and their internal resistances are equal, one can solve for the current in each

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

, this is significant. I have never seen a battery set tha all batteries have the same thermal conductance to ambient Darryl --- On Sat, 12/5/09, boB Gudgel b...@midnitesolar.com wrote: From: boB Gudgel b...@midnitesolar.com Subject: Re: [RE-wrenches] Strings and series of batteries with reverse

Re: [RE-wrenches] Strings and series of batteries

). dbDan BrownPresidentFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 Original Message Subject: Re: [RE-wrenches] Strings and series of batteries From: Mendocino Solar Service mso...@mcn.org Date: Thu, December 03, 2009 9:48 pm To: RE

Re: [RE-wrenches] Strings and series of batteries

s.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries Just for a contrasting opinion: I rarely use grease or vaseline unless it proves necessary. I have changed out battery banks after seven years and the connectors are stil

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

-- From: Hugh mailto:h...@scoraigwind.co.ukh...@scoraigwind.co.uk Sent: Thursday, December 03, 2009 8:30 AM To: RE-wrenches mailto:re-wrenches@lists.re-wrenches.orgre-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

Yes, the bus bar technique will always add 1 cable and 2 connection points. And extra cost. As far as I can see and from what I have read in this thread, the only advantage to the bus bar method is absolutely equal interconnection resistances for all the strings. Maybe this advantage is only

Re: [RE-wrenches] Strings and series of batteries(Battery goo)

Original Message Subject: Re: [RE-wrenches] Strings and series of batteries From: Allan Sindelar al...@positiveenergysolar.com Date: Fri, December 04, 2009 9:50 am To: "'RE-wrenches'" re-wrenches@lists.re-wrenches.org Funny…Quick-Cote is what I referred to in my post Wedne

Re: [RE-wrenches] Strings and series of batteries with reverse return linkup

Sent: Friday, December 04, 2009 11:55 AM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries with reverse return linkup Yes, the bus bar technique will always add 1 cable and 2 connection points. And extra cost. As far as I can see

Re: [RE-wrenches] Strings and series of batteries with reversereturn linkup

- Original Message - From: Tom Elliot tell...@wagonmaker.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Friday, December 04, 2009 3:01 PM Subject: Re: [RE-wrenches] Strings and series of batteries with reversereturn linkup I would love to see some studies on that Michael. I

Re: [RE-wrenches] Strings and series of batteries

I was just picking up on where everybody is located. The cold weather boys like vaseline, and obviously you warm weather folks need the grease. I think this affects the battery sizing debate too: if I size a battery for 4 days storage, it only has 2 or 3 days of storage in really cold weather.

Re: [RE-wrenches] Strings and series of batteries

@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 6:07 PM Subject: Re: [RE-wrenches] Strings and series of batteries Basically I agree about the low melting point of Vaseline, but I see it as the canary in the coal mine: your batteries and connections shouldn't be getting that hot

Re: [RE-wrenches] Strings and series of batteries

I am sure the reason for using gloves with grease is lithium based grease stinks like 90 weight. Who wants that on their hands? Todd On Thursday, December 3, 2009 1:21am, R Ray Walters r...@solarray.com said: I was just picking up on where everybody is located. The cold weather boys like

Re: [RE-wrenches] Strings and series of batteries

- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Darryl Thayer Sent: Wednesday, December 02, 2009 3:11 PM To: RE-wrenches Subject: Re: [RE-wrenches] Strings and series of batteries I clean,apply grease, then apply antiseze to SS

Re: [RE-wrenches] Strings and series of batteries

Boy, this string on strings and series of strings is starting to string into a very long list of string related emails! We also avoid multiple strings of batteries, but sometimes this is required to get the right combination of system voltage and amp-hour capacity. We also agree that 3 or

Re: [RE-wrenches] Strings and series of batteries

Friends: Regardless of what material you prefer to protect battery posts, I don't recommend applying it until after the connection is torqued. The cable ends and the terminals need to be wire brushed immediately prior to assembly. We had to dis-assemble a set of batteries and move them for

Re: [RE-wrenches] Strings and series of batteries

Not to be a solar wussy, but that's my main reason for using vaseline most of the time, when high temps aren't an issue. I'm a solar electrician, not an auto mechanic. (also why we quit servicing generators) R. Walters r...@solarray.com Solar Engineer On Dec 3, 2009, at 9:38 AM,

Re: [RE-wrenches] Strings and series of batteries

-wrenches.org] On Behalf Of James Surrette Sent: Thursday, December 03, 2009 12:02 PM To: RE-wrenches; jry...@netscape.com Subject: Re: [RE-wrenches] Strings and series of batteries Hi Jeff, Not to plug but we (and some other vendors) have 2V L-16's on offer. So you can get 1000AH (C/20

Re: [RE-wrenches] Strings and series of batteries

-0800 (PST) Subject: Re: [RE-wrenches] Strings and series of batteries Are they three cells in parrallel or are they one big cell? Hi Jamie, Have you seen any change in cycle life by having the three cells in the L16 connected in parallel instead of series? Just a question that has

Re: [RE-wrenches] Strings and series of batteries

Just for a contrasting opinion: I rarely use grease or vaseline unless it proves necessary. I have changed out battery banks after seven years and the connectors are still pristine whilst dry. I agree that sometimes there will be localised corrosion on battery terminals. I find it rarely,

Re: [RE-wrenches] Strings and series of batteries

] Strings and series of batteries Just for a contrasting opinion: I rarely use grease or vaseline unless it proves necessary. I have changed out battery banks after seven years and the connectors are still pristine whilst dry. I agree that sometimes there will be localised corrosion on battery

Re: [RE-wrenches] Strings and series of batteries

of batteries It has but the one drawback is there is no bar on this bus... From: Phil Undercufflermailto:solarp...@gmail.com Sent: Thursday, December 03, 2009 11:46 AM To: re-wrenches@lists.re-wrenches.orgmailto:re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series

Re: [RE-wrenches] Strings and series of batteries

- Original Message - From: Richard L Ratico richard.l.rat...@valley.net To: re-wrenches@lists.re-wrenches.org Sent: Tuesday, December 01, 2009 5:00 PM Subject: Re: [RE-wrenches] Strings and series of batteries Perhaps off topic, it's been said here previously by others, but is worth

Re: [RE-wrenches] Strings and series of batteries

-- From: Hugh h...@scoraigwind.co.uk Sent: Thursday, December 03, 2009 8:30 AM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries Just for a contrasting opinion: I rarely use grease or vaseline

Re: [RE-wrenches] Strings and series of batteries

...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dana Sent: Tuesday, December 01, 2009 12:58 PM To: 'RE-wrenches' Subject: [RE-wrenches] Strings and series of batteries On a similar subject here - Long ago, I had a Trojan battery rep. state that they did

[RE-wrenches] Strings and series of batteries

- From: Richard L Ratico richard.l.rat...@valley.net To: re-wrenches@lists.re-wrenches.org Sent: Tuesday, December 01, 2009 5:00 PM Subject: Re: [RE-wrenches] Strings and series of batteries Perhaps off topic, it's been said here previously by others, but is worth repeating, good old Vaseline

Re: [RE-wrenches] Strings and series of batteries

?). DT --- On Wed, 12/2/09, Tom Elliot tell...@wagonmaker.com wrote: From: Tom Elliot tell...@wagonmaker.com Subject: Re: [RE-wrenches] Strings and series of batteries To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Wednesday, December 2, 2009, 11:58 AM Message

Re: [RE-wrenches] Strings and series of batteries

We cut a hole in the lid of the Vaseline can, and have a tooth brush stuck in for applying the goo. R. Walters r...@solarray.com Solar Engineer On Dec 2, 2009, at 10:28 AM, Allan Sindelar wrote: Years ago we began using Quick-Cote terminal corrosion protector. At about $12 a can it has

Re: [RE-wrenches] Strings and series of batteries

817.917.0527 nt...@earthlink.net www.ntrei.com - Original Message - From: Richard L Ratico richard.l.rat...@valley.net To: re-wrenches@lists.re-wrenches.org Sent: Tuesday, December 01, 2009 5:00 PM Subject: Re: [RE-wrenches] Strings and series of batteries Perhaps

Re: [RE-wrenches] Strings and series of batteries

Sent: Wednesday, December 02, 2009 8:26 AM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries I know that CD battery does not like parallel strings and they have a device that measures the currents in each string I investigated a fire from

Re: [RE-wrenches] Strings and series of batteries

...@wagonmaker.com wrote: From: Tom Elliot tell...@wagonmaker.com Subject: Re: [RE-wrenches] Strings and series of batteries To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Wednesday, December 2, 2009, 2:00 PM Darryl, Do you understand the difference between paralleling the traditional

Re: [RE-wrenches] Strings and series of batteries

traditionally. Tom -- From: Darryl Thayer daryl_so...@yahoo.com Sent: Wednesday, December 02, 2009 12:04 PM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries No, Tom I am not sure that I know

Re: [RE-wrenches] Strings and series of batteries

: Re: [RE-wrenches] Strings and series of batteries Darryl, The process of paralleling through buss bars means attaching each serial string to a pair of buss bars rather than to neighboring series pairs so batteries aren't passing current through each other and aren't affected by each others

Re: [RE-wrenches] Strings and series of batteries

/ .. - Original Message - From: R Ray Walters r...@solarray.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 11:48 AM Subject: Re: [RE-wrenches] Strings and series of batteries We cut a hole in the lid of the Vaseline can, and have a tooth brush

Re: [RE-wrenches] Strings and series of batteries

...@wind-sun.com Subject: Re: [RE-wrenches] Strings and series of batteries To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Wednesday, December 2, 2009, 5:01 PM Vaseline simply is not very good for battery terminals. The melting point is too low. There are other things that are much

Re: [RE-wrenches] Strings and series of batteries

I wish I understood this bus bar use better. Electrically, these seem to be the same thing. But by using the bus bar, there has to be more cables, cable ends, and connection points. And cost. I just drew a battery bank (see below link to graphic), three series strings in parallel. On the

Re: [RE-wrenches] Strings and series of batteries

I also have been following this thread and wondering whazzup about buss bars being better than just parallel cables from one battery string to the next. Agreed that the parallel cable method is merely using the terminal of the battery as a connector between two cables. Maybe if there's big

Re: [RE-wrenches] Strings and series of batteries

] On Behalf Of Dana Sent: Tuesday, December 01, 2009 12:58 PM To: 'RE-wrenches' Subject: [RE-wrenches] Strings and series of batteries On a similar subject here – Long ago, I had a Trojan battery rep. state that they did not like to see more than [12] L-16s in a series –parallel bank system

Re: [RE-wrenches] Strings and series of batteries

Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Michael Welch Sent: Wednesday, December 02, 2009 4:00 PM To: RE-wrenches Subject: Re: [RE-wrenches] Strings and series of batteries I wish I understood this bus bar use better

Re: [RE-wrenches] Strings and series of batteries

...@starlightsolar.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 5:27 PM Subject: Re: [RE-wrenches] Strings and series of batteries Another YES for silicon. We have used it for years. A very thin coat will last a long time. I have seen the gooey mess for heated

Re: [RE-wrenches] Strings and series of batteries

/ .. - Original Message - From: Larry Crutcher, Starlight Solar la...@starlightsolar.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 5:27 PM Subject: Re: [RE-wrenches] Strings and series

Re: [RE-wrenches] Strings and series of batteries

Problem with bussing in the Flexware, is that the bussbars only go to 1/0. (be great if they made an attachment like Sq D, that allowed you to bring bigger cables to their buss.) Another reason to go to a battery buss instead of cross tying is on complicated layouts where cross tying won't get

Re: [RE-wrenches] Strings and series of batteries

: Wednesday, December 02, 2009 6:24 PM To: RE-wrenches Subject: Re: [RE-wrenches] Strings and series of batteries My question about the buss bar is this. Is this something that you are fabricating or are buying and if so where and what? thanks, jay peltz power

Re: [RE-wrenches] Strings and series of batteries

-wrenches@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 5:27 PM Subject: Re: [RE-wrenches] Strings and series of batteries Another YES for silicon. We have used it for years. A very thin coat will last a long time. I have seen the gooey mess for heated vaseline more than once. Larry

Re: [RE-wrenches] Strings and series of batteries

on the case. Dirty car and truck batteries in damp weather often leak current. Joel Davidson - Original Message - From: R Ray Walters r...@solarray.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wednesday, December 02, 2009 6:07 PM Subject: Re: [RE-wrenches] Strings and series

Re: [RE-wrenches] Strings and series of batteries

Subject: Re: [RE-wrenches] Strings and series of batteries I wish I understood this bus bar use better. Electrically, these seem to be the same thing. But by using the bus bar, there has to be more cables, cable ends, and connection points. And cost. I just drew a battery bank (see below link

Re: [RE-wrenches] Strings and series of batteries

-- From: Michael Welch michael.we...@re-wrenches.org Sent: Wednesday, December 02, 2009 2:00 PM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries I wish I understood this bus bar use better

Re: [RE-wrenches] Strings and series of batteries

, December 02, 2009 7:07 PM Subject: Re: [RE-wrenches] Strings and series of batteries Basically I agree about the low melting point of Vaseline, but I see it as the canary in the coal mine: your batteries and connections shouldn't be getting that hot! Anything over 85 degrees and the cycle life

Re: [RE-wrenches] Strings and series of batteries

...@re-wrenches.org Sent: Wednesday, December 02, 2009 5:05 PM To: RE-wrenches re-wrenches@lists.re-wrenches.org Subject: Re: [RE-wrenches] Strings and series of batteries Thanks, Tom. I think I have seen those photos before. Am I seeing 16 cables hooked up to each bus bar? Are you using 2 cables

[RE-wrenches] Strings and series of batteries

On a similar subject here - Long ago, I had a Trojan battery rep. state that they did not like to see more than [12] L-16s in a series -parallel bank system. This was due to too many points of connection / resistance and bad communication due to multiple flow paths. Has anyone else heard

Re: [RE-wrenches] Strings and series of batteries

/ .. - Original Message - From: Dana To: 'RE-wrenches' Sent: Tuesday, December 01, 2009 10:57 AM Subject: [RE-wrenches] Strings and series of batteries On a similar subject here - Long ago, I had a Trojan battery rep. state that they did not like to see more than [12] L-16s

Re: [RE-wrenches] Strings and series of batteries

On that note heat the Vaseline to about smoking and brush it on. It gives you a thin coat without all the lumps and gobs of slop. I also clean and dip the cable ends in the can, Nice smooth coating and no corrosion for years. The hotter the better. The occasional hating yourself while having to

Re: [RE-wrenches] Strings and series of batteries

Vaseline is great, but I wouldn't put it on all exposed metal surfaces', though. The battery parts themselves (the lead) never have a problem, so just the copper and the bolting hardware need the treatment. R. Walters r...@solarray.com Solar Engineer On Dec 1, 2009, at 4:00 PM, Richard L