Hello, In the 70's, I worked for Globe Union, which was the largest manufacturer of after market batteries. (The battery division for Globe Union, is now owned by Johnson Controls.) Back then, we sold the same batteries to many brands, such as those sold by auto parts stores, and Sears branded as Diehard. However, there actually was a difference. Some customers, more specifically Sears, had different standards than others, so while the Diehards came off of the same assembly line, they had small changes in them to meet those perceived higher standards. Whether those standards made a better battery is up to debate though. Does increasing the freshly manufactured battery's capacity at the expense of life makes it better?
Mike ------------------------ Original Message ------------------------ Date: Fri, 10 Jan 2014 11:06:34 -0500 From: Michael Ross <[email protected]> To: Electric Vehicle Discussion List <[email protected]> Subject: Re: [EVDL] Sears AGMs In the eighties, not counting Yuasa who only made motorcycle batteries then, for a time there was only one PbSO4 battery manufacturer - Exide. All of them Interstate, Diehard, Exide, every single one, was made to spec by Exide. If Dies hared and Interstates were really better it was only because they spec'd them to be better. Nothing much has changed there are just a few more manufacturers. So the quality and warranty issues are all on the people specifying there design, selling them. On Fri, Jan 10, 2014 at 6:05 AM, Michael K Johnson <[email protected]>wrote: > > http://www.thehulltruth.com/boating-forum/160089-sears-diehard-platinum-agm-batteries.htmlhas > a claim that Diehard Platinum AGMs are (or were, at one time) Odyssey > batteries. I quote: > > > > * The "marine version" of the Sears Die Hard Platnium is the same as the > Odyssey PC1500 Group 34M The "auto version" of the Sears Die Hard > Platnium is the same as the Odyssey PC1750 Group 65.* > > No idea if that's what OP had in mind. > > > On Thu, Jan 9, 2014 at 9:27 PM, EVDL Administrator <[email protected]> > wrote: > > > > these are a private label battery of the brand that's sold to the army > > ... > > > > What brand is that? > > > > I might also point out that even if they're made by the same > manufacturer, > > that doesn't mean that they're identical to that company's native-brand > > battery. As the contract manufacturer, they build the battery that the > > customer wants. In this case "the customer" is the big chain selling > them, > > not you and me. > > > > The only way to really judge and compare their performance is to buy one > > (or > > two, or more) and test them. See if they meet their specs for capacity. > > Cycle them and see how their capacity holds up over 100, 200, 300 > cycles. > > > > David Roden > > EVDL Administrator > > http://www.evdl.org/ > > > > > > _______________________________________________ > > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > > For EV drag racing discussion, please use NEDRA ( > > http://groups.yahoo.com/group/NEDRA) > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140110/7f4cd55d/attachment.htm > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140110/8c25f02e/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
