9v battery terminal blanks?
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From: jakdedert on 16 Dec 2008 22:38 DaveC wrote: > I want to keep some NiMH rechargeable 9v batteries in my tool bag (well, my > meter bag, actually). I am currently running a double loop of electrical tape > around the entire battery to insulate the terminals. > > I'd like to use something more durable (one battery has had a terminal peek > through the tape) and was thinking about something like a battery terminal > connector but made of insulating material like nylon (probably of some > cheaper plastic). > > Does such a thing exist? I did web searches, but maybe my terminology isn't > spot-on... > > Ideas? > > Thanks, As Michael pointed out, the same caps that Duracells ship with are available in aftermarket. Personally, I just use a piece of gaffers (duct) tape, line the cells up--terminals down, adhesive side up--then fold the tape down over the sides. That's enough to keep them from shorting together. Put in a drawer or box, they won't short to anything else. YMMV...the goo from the tape is sometimes an issue. jak
From: Spehro Pefhany on 16 Dec 2008 23:03 On Tue, 16 Dec 2008 21:38:29 -0600, the renowned jakdedert <jakdedert(a)bellsouth.net> wrote: >DaveC wrote: >> I want to keep some NiMH rechargeable 9v batteries in my tool bag (well, my >> meter bag, actually). I am currently running a double loop of electrical tape >> around the entire battery to insulate the terminals. >> >> I'd like to use something more durable (one battery has had a terminal peek >> through the tape) and was thinking about something like a battery terminal >> connector but made of insulating material like nylon (probably of some >> cheaper plastic). >> >> Does such a thing exist? I did web searches, but maybe my terminology isn't >> spot-on... >> >> Ideas? >> >> Thanks, > >As Michael pointed out, the same caps that Duracells ship with are >available in aftermarket. Personally, I just use a piece of gaffers >(duct) tape, line the cells up--terminals down, adhesive side up--then >fold the tape down over the sides. That's enough to keep them from >shorting together. Put in a drawer or box, they won't short to anything >else. > >YMMV...the goo from the tape is sometimes an issue. > >jak Now if it's AA/AAA/CR123 cells you want to protect, there are nice little soft plastic snap boxes available that work fine. Dealextreme sells a set of 3 4-cell AA boxes for < $2.50. Pricey for a few bits of plastic, but that includes worldwide shipping. I use them for NiMH AA cells. You often get them for free when you buy a set of 4 cells. Just out of curiosity, what are you using that requires a 9V rechargable battery? Something special? Most occasional-use meters and such like are better off with a 9V primary cell because of the low self discharge rate of primary cells compared to NiMH. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: jakdedert on 16 Dec 2008 23:13 Spehro Pefhany wrote: > On Tue, 16 Dec 2008 21:38:29 -0600, the renowned jakdedert > <jakdedert(a)bellsouth.net> wrote: > >> DaveC wrote: >>> I want to keep some NiMH rechargeable 9v batteries in my tool bag (well, my >>> meter bag, actually). I am currently running a double loop of electrical tape >>> around the entire battery to insulate the terminals. >>> >>> I'd like to use something more durable (one battery has had a terminal peek >>> through the tape) and was thinking about something like a battery terminal >>> connector but made of insulating material like nylon (probably of some >>> cheaper plastic). >>> >>> Does such a thing exist? I did web searches, but maybe my terminology isn't >>> spot-on... >>> >>> Ideas? >>> >>> Thanks, >> As Michael pointed out, the same caps that Duracells ship with are >> available in aftermarket. Personally, I just use a piece of gaffers >> (duct) tape, line the cells up--terminals down, adhesive side up--then >> fold the tape down over the sides. That's enough to keep them from >> shorting together. Put in a drawer or box, they won't short to anything >> else. >> >> YMMV...the goo from the tape is sometimes an issue. >> >> jak > > Now if it's AA/AAA/CR123 cells you want to protect, there are nice > little soft plastic snap boxes available that work fine. Dealextreme > sells a set of 3 4-cell AA boxes for < $2.50. Pricey for a few bits of > plastic, but that includes worldwide shipping. I use them for NiMH AA > cells. You often get them for free when you buy a set of 4 cells. > > Just out of curiosity, what are you using that requires a 9V > rechargable battery? Something special? Most occasional-use meters and > such like are better off with a 9V primary cell because of the low > self discharge rate of primary cells compared to NiMH. > > > Best regards, > Spehro Pefhany To be honest, I don't use them for anything. My comments referred to alkalines used in wireless mics and other sound equipment. I save the used batteries in the manner suggested above. 9v's are expensive. While I wouldn't use them again professionally, we change them at almost every opportunity, since the expense is trivial compared to a dead mic during a show or presentation. As such, they are still useful for less demanding applications. I also wouldn't use rechargables for the application; but the size, shape and intent are close enough for the method to be useful to the OP. jak
From: Dave Plowman (News) on 17 Dec 2008 04:45 In article <WY_1l.9317$UI2.6904(a)bignews6.bellsouth.net>, jakdedert <jakdedert(a)bellsouth.net> wrote: > To be honest, I don't use them for anything. My comments referred to > alkalines used in wireless mics and other sound equipment. I save the > used batteries in the manner suggested above. 9v's are expensive. > While I wouldn't use them again professionally, we change them at almost > every opportunity, since the expense is trivial compared to a dead mic > during a show or presentation. Surely the client effectively pays for them? But if you're using decent quality batteries and equipment, the life should be pretty consistent. With mine, it's 9 hours so I change at 8. If I were using them for an all day presentation where they could only be changed at say the lunch break, good rechargeables *might* be worth it. Assuming your mics have an SMPS that can work on the lower voltage. But as I said earlier, 'pro' batteries bought by the box already come with a clip on protector. Or do in the UK. And are cheaper per unit than buying retail - unless you're willing to use no name stuff. At the moment I'm using Energiser. -- *There are two kinds of pedestrians... the quick and the dead. Dave Plowman dave(a)davenoise.co.uk London SW To e-mail, change noise into sound.
From: Michael A. Terrell on 17 Dec 2008 09:57
"Dave Plowman (News)" wrote: > > In article <WY_1l.9317$UI2.6904(a)bignews6.bellsouth.net>, > jakdedert <jakdedert(a)bellsouth.net> wrote: > > To be honest, I don't use them for anything. My comments referred to > > alkalines used in wireless mics and other sound equipment. I save the > > used batteries in the manner suggested above. 9v's are expensive. > > While I wouldn't use them again professionally, we change them at almost > > every opportunity, since the expense is trivial compared to a dead mic > > during a show or presentation. > > Surely the client effectively pays for them? He is in the convention business. The mics are used to at least half battery life, per use. Rather than take a chance of one dying before a second use is over, the battery is replaced. It's figured to be a consumable item like gaffer's tape & light bulbs. > But if you're using decent quality batteries and equipment, the life > should be pretty consistent. With mine, it's 9 hours so I change at 8. If > I were using them for an all day presentation where they could only be > changed at say the lunch break, good rechargeables *might* be worth it. > Assuming your mics have an SMPS that can work on the lower voltage. > > But as I said earlier, 'pro' batteries bought by the box already come with > a clip on protector. Or do in the UK. And are cheaper per unit than buying > retail - unless you're willing to use no name stuff. At the moment I'm > using Energiser. -- http://improve-usenet.org/index.html aioe.org, Goggle Groups, and Web TV users must request to be white listed, or I will not see your messages. If you have broadband, your ISP may have a NNTP news server included in your account: http://www.usenettools.net/ISP.htm There are two kinds of people on this earth: The crazy, and the insane. The first sign of insanity is denying that you're crazy. |