Post by thread:[EE:] Camera battery holder

Hello, I am still trying to find a battery/holder solution for my 16F877A data logger system. After being unable to find a holder for 2 high capacity coin cells I am leaning toward a 6V camera battery but cannot find an appropriate holder. Any ideas? Thanks, Nick -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

What size coin cells were you trying to use at first? ----- Original Message ----- >After being unable to find a holder for 2 high capacity coin cells -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Is this product a commercial offerring or hobby-kit kind of thing? It makes a difference. John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 spam_OUTjohnferrellTakeThisOuTearthlink.net http://DixieNC.US NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" {Original Message removed}

Hard to believe that none of the hundreds of battery holders in DigiKey's catalog (pp 1124-1126) will do the trick. 72/73 de WB8RCR http://www.qsl.net/wb8rcr didileydadidah QRP-L #1446 Code Warriors #35 {Original Message removed}

For a coin cell or for a camera battery? I'd agree with you for a coin cell, but I have yet to find battery holders for 'oddball' batteries such as lithium camera batteries, sub-C, etc. > Hard to believe that none of the hundreds of battery holders in DigiKey's > catalog (pp 1124-1126) will do the trick. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

I ordered CR2450 from Digikey along with a Keystone 1025 2 cell holder and a MPD BH1000-G holder and neither would hold 2 CR2450s acceptably. The CR2450 is a 620mAh battery - In reality I would like to exceed 1Ah but was trying to make the coin cell idea work for compactness and simplicity. Nick {Original Message removed}

David Schmidt wrote: > For a coin cell or for a camera battery? > I'd agree with you for a coin cell, but I have yet to find battery > holders for 'oddball' batteries > such as lithium camera batteries, sub-C, etc. A battery holder for "normal" cylindrical batteries (like AA) is easy if you already have a PC board. Just get battery clips from Keystone and put them at the appropriate distance for your battery. The clips are held in place by the PC board, and they hold the ends of the battery quite firmly in place while making contact with them. Another nice feature is that the same part works for all batteries of the same diameter. The length is just a function of how you lay out the clips on the PC board. They are cheap too. I've used the AA clips a bunch of times. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

I got my hands on about a dozen of the single holder in a local Radio Shack clearance. They are available Try Jameco, DigiKey, and Mouser to name a few. I have seen two cells in the ones like I have but they are just thinnner cells. No gain there. If you are looking for option, you may want to try some of the Cordless phone batteries. most just simple plug into a two pin header. Lots of power and rechargable. Just a Thought Eddie Turner, KC4AWZ -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Thanks for the input. I have settled on a 1/2 AA size Lithium Thionyl Chloride (Tadiran XTRA High Capacity) cell with the appropriate holder in digikey. This seems like a pretty PIC friendly solution. 3.6V with a very pretty discharge curve (long steady voltage with a quick drop at the end of the life) and rated capacity of 1200mAh designed for long-term low current operation for 5.09 (10). This should easily get me over a year of battery life and the holder should fit my enclosure with room to change the battery perfectly. Nick -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Believe it. I get most of my parts from DigiKey and have searched through the paper catalog and on the website and have even tried the best two contenders and have yet to find the appropriate item. Thanks though. Nick {Original Message removed}

On Wednesday, Jan 14, 2004, at 12:10 US/Pacific, James Nick Sears wrote: >> I am still trying to find a battery/holder solution for my 16F877A >> data >> logger system. After being unable to find a holder for 2 high >> capacity >> coin cells I am leaning toward a 6V camera battery but cannot find an >> appropriate holder. Any ideas? >> Well, at some point, a coin cell battery holder is just an appropriately sized hole in some material of appropriate thickness, with a contact at the bottom and a contact at the top, and perhaps some significant mechanical retention to keep it all from falling apart. Maybe it's time to see what if you can resurrect any mechanical engineering skills. Plexiglass or PCB material is a reasonable starting point, and you don't even need the hole to be round. A hint of triangle should be plenty... BillW -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam@spam@mitvma.mit.edu with SET PICList DIGEST in the body