[RE-wrenches] Trojan L-16 SG Readings- Did Something Change?

Tue Sep 4 13:24:13 PDT 2012

Could the battery acid solution be too weak?  I 
saw a problem once when some of the original acid 
had been taken out of the batteries and replaced 
by water.   What does the voltage look like? In 
that case, the voltage would never reach equalize voltage.

At 03:22 PM 9/4/2012, you wrote:
>Content-Type: multipart/alternative;
>         boundary="----=_NextPart_000_034B_01CD8A98.048BDF30"
>Content-Language: en-us
>
>Thank you John. Is anyone else out there seeing 
>specific gravity measurements outside of what 
>Trojan is stating on the spec sheets?
>
>John, we are not seeing these SG readings, no 
>matter how much we equalize, we are still seeing 
>readings that are about .015+/- low after 
>several equalizations. This is on newer 
>batteries, and within the plate forming period. 
>Do you have a SG reading that we should be 
>looking for during the first 18 months (or XX 
>amount of cycles until the plates are properly formed)?
>
>Thanks-
>
>Sequoya Cross
>1589 Rapid Lightning Creek Rd
>Sandpoint, Idaho 83864
><http://www.backwoodssolar.com/>www.backwoodssolar.com
>Phone(208)263-4290
>Fax (888) 273-8279
>
>We are an online and catalog business that 
>caters to off-grid and grid-tie customers, with 
>technicians that own and operate a variety of 
>renewable energy systems using the products that 
>we sell. We take great pride in getting to know 
>our products so that we can recommend the best for our customers.
>
>
>
>
>From: re-wrenches-bounces at lists.re-wrenches.org 
>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of John DeBoever
>Sent: Friday, August 31, 2012 1:05 PM
>To: RE-wrenches
>Subject: Re: [RE-wrenches] Trojan L-16 SG Readings- Did Something Change?
>
>Sequoya, Wrenches,
>
>Thank you for your patience on this, as I had no 
>easy Internet connection. Below are the clarifications requested.
>
>
>ü  Trojan Premium L16RE-B datasheet can be found 
>here: 
><http://www.trojanbatteryre.com/PDF/datasheets/L16REB_TrojanRE_Data_Sheets.pdf>http://www.trojanbatteryre.com/PDF/datasheets/L16REB_TrojanRE_Data_Sheets.pdf 
>
>
>ü  Trojan Premium line ( 
><http://www.trojanbatteryre.com/PDF/Premium_Trojan_ProductLineSheet.pdf>http://www.trojanbatteryre.com/PDF/Premium_Trojan_ProductLineSheet.pdf 
>) has indeed changed its specific gravity from 
>nominal 1.260+-0.007 to nominal 1,280+-0.007 
>since March 2012 production.  This change was 
>motivated to reduce the confusion in the field 
>between Trojan Premium line S.G. values and 
>Trojan Signature line S.G. values.  They are now 
>identical.  Only Trojan IND line S.G. remain at 1.260 .
>
>ü  During the beginning of the life of the 
>battery, an optimized development process of the 
>plates porosity will take place to maximize the 
>surface access contact between the electrolyte 
>and the lead sulfate crystal within Trojan 
>proprietary exclusive paste formulation.  This 
>optimum moisture of the active material at the 
>beginning of the battery life is the 
>continuation of an advanced factory-controlled 
>72-hour curing process and increase the 
>electrical conductivity and improved discharge 
>performance of the active material paste, 
>resulting in Trojan’s proven both sustained 
>capacity and total overall 
>ampere-hours,  resulting in more operating 
>power. The variation can reflect approximately 7 points in the S.G.
>
>ü  The date code can be found on the negative 
>terminal and consist of one letter and one 
>figure.  The figure for 2012 is “2”. Any date 
>code from and after “E2”  (i.e. Code date with letter E2, F2, G2,
)
>will have a nominal S.G. of 1.280 . Prior that, the nominal S.G. was 1,260.
>
>I hope that helps,
>
>John
>
>
>John F. DeBoever
>Global Technical & Projects Director – Renewable Energy
>Trojan Battery Company
>
>12380 Clark Street
>Santa Fe Springs, CA 90670
>Tel: +1-562-236-3000 Ext. 3139
>Cell: +1-845-514-7600 – NY office time zone: USA EST (GMT-5)
>Skype: john.f.deboever
>Fax: +1-562-236-3239
><mailto:jdeboever at trojanbattery.com>jdeboever at trojanbattery.com
>www.trojanbattery.com
>
>From: 
><mailto:re-wrenches-bounces at lists.re-wrenches.org>re-wrenches-bounces at lists.re-wrenches.org 
>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Sequoya Cross
>Sent: Thursday, August 30, 2012 3:08 PM
>To: 
><mailto:re-wrenches at lists.re-wrenches.org>re-wrenches at lists.re-wrenches.org
>Subject: [RE-wrenches] Trojan L-16 SG Readings- Did Something Change?
>
>We are wondering if anybody knows when the 
>Trojan L-16RE-B batteries went from full SG 
>readings of 1.265 (after an 18 month "plate 
>forming" period) to 1.280 that they now state on 
>the data sheet. We have been having customers 
>use 1.250 as a full reading which would 
>gradually increase over time to 1.265 and that 
>might take/might not be seen for 18 months. Now 
>we see that a "full reading" should be 1.280 and 
>maybe still a "plate forming" period or maybe 
>not? Does anyone know the date code that we can 
>use with customers to see what they should be 
>looking for (should have been somewhere between 
>2010 and 2012)? I have this question out to 
>Trojan as well, but haven’t received 
>confirmation and wanted to know what data you all were seeing as well.
>
>Thanks-
>
>Sequoya Cross
>1589 Rapid Lightning Creek Rd
>Sandpoint, Idaho 83864
><http://www.backwoodssolar.com/>www.backwoodssolar.com
>Phone(208)263-4290
>Fax (888) 273-8279
>
>We are an online and catalog business that 
>caters to off-grid and grid-tie customers, with 
>technicians that own and operate a variety of 
>renewable energy systems using the products that 
>we sell. We take great pride in getting to know 
>our products so that we can recommend the best for our customers.
>
>
>
>
>
>This e-mail message and any attachments that 
>accompany it may contain information that is 
>confidential, privileged, or protected from 
>disclosure. It is intended solely for the use of 
>the individual(s) to whom it was intended to be 
>addressed. If you have received this e-mail by 
>mistake, or you are not the intended recipient, 
>any reading, disclosure, copying or other use of 
>this communication is strictly prohibited. If 
>you have received this communication in error, 
>please immediately advise the sender at their 
>phone number listed above, or by electronic 
>mail, and also permanently delete the original 
>and all copies of this e-mail and any 
>attachments from all locations. Thank you.
>_______________________________________________
>List sponsored by Home Power magazine
>
>List Address: RE-wrenches at lists.re-wrenches.org
>
>Options & settings:
>http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
>List-Archive: 
>http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
>List rules & etiquette:
>www.re-wrenches.org/etiquette.htm
>
>Check out participant bios:
>www.members.re-wrenches.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20120904/0c4c920b/attachment-0003.html>