9v battery terminal blanks?

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,

--
DaveC
me@bogusdomain.net
This is an invalid return address
Please reply in the news group
Reply to
DaveC
Loading thread data ...

Start harvesting the snap-on battery cords from dead electronics. Cut the wires off short (preferably inside the vinyl housing a bit). Snap them on -- there you are!

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" gives you just what it says.
See details at http://www.wescottdesign.com/actfes/actfes.html
Reply to
Tim Wescott

Most of those break after a few operations.

You could take a dead battery apart and use the connector block from that after insulating. Usually far stronger than the wire ended connectors.

--
*Microsoft broke Volkswagen's record: They only made 21.4 million bugs.

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.
Reply to
Dave Plowman (News)

That would be my suggestion, you could insulate the terminal rivets with blobs of epoxy glue or with some makes of battery the blank plastic insert from the bottom could be superglued on for insulation.

Reply to
ian field

You don't need much technical understanding to know that NiCd & NiMh batteries have a lower terminal voltage.

Reply to
ian field

It`s not to do with the terminal voltage, it`s something to do with the batteries internal resistance. Wireless packs are designed for replacable batteries. The internal battery metering is calibrated for Alkalines.

Remember the OP was talking 9v (PP3) batteries here, You're asking for trouble using anything other than Procells or Energisers.

Ron

Reply to
Ron Johnson

Designing anything for alkalines only in ths day and age is absurd.

P.S. rechargeables have LESS internal resistance. Try shorting a rechargeable and see how hot it gets.

--
http://www.petersparrots.com    http://www.insanevideoclips.com   
http://www.petersphotos.com

A beautiful young girl is about to undergo a minor operation. 
She's laid on a trolley bed by a lady in a white dress and brought to the
corridor. 
Before they enter the room she leaves her behind the theatre door to go in and
check whether everything is ready.
A young man wearing a white coat approaches, takes the sheet away and starts
examining her naked body.
He walks away and talks to another man in a white coat.
The second man comes over and does the same examinations. 
When a third man starts examining her body so closely, she grows impatient and
says:
"All these examinations are fine and appreciated, but when are you going to
start the operation?"
The man in the white coat shrugged his shoulders: "I have no idea. We're just
painting the corridor."
Reply to
Peter Hucker

Show us some of your designs, troll.

--

formatting link

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:

formatting link

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.

Reply to
Michael A. Terrell

BWAHAHAHAHAHAHA.......

Ow - my sides hurt!

Reply to
ian field

I forgot: A frozen parrot on a stick doesn't count.

--

formatting link

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:

formatting link

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.

Reply to
Michael A. Terrell

In your opinion maybe. Professionals in the sound industry use quality replaceable batteries, they are reliable - reliability means _everything_ when a show (or your job) is at stake.

and see how hot it gets.

Try shorting a 9 volt Procell! stand well back tho...

Ron

Reply to
Ron(UK)

"Ron(UK)" wrote in news: snipped-for-privacy@bt.com:

Lame. I keep hearing this silly excuse. This is consumer high-street shop level thinking. The whole audio industry is riddled with it. For decades dull black boxes have been shifted with the letters PRO on them, regardless of how tacky they are, never has an industry blown its trumpet so loudly.

Do they use alkalines in space? In oil drilling gear that has to go down deep in the earth and stand vibrations? In pacemakers? In aircraft black boxes? Ok, maybe they do, sometimes, but there are lot of battery technologies reached for when mission critical reliability is needed, and I bet most industries don't reach for alkalines. Oil wells reach for lithium thionyl chloride, for example. If long life primaries with extreme reliability are important to people who are so up themselves with their 'reputation' and their expensive hours that are worth SO many batteries, why not buy those?

Instead of clinging to one aging method that is highly polluting, use some imagination and explore what REAL professionals with mission critical requirements are up to. Compared to those, the industry that makes such a song and dance of putting microphones in front of delegates at conferences is like the hairdressers and telephone sanitisers that Douglas Adams whimsically crashlanded on some planet along with a captain with a penchant for bathtubs and rubber ducks. >:) While we need entertainment and communication to make life worth living, people used to get by till very recently without having to use so many mics to feel important or get themselves heard.

Get a grip. This thread has wound its way round this silly circle for too long, and I should never have got into it myself, but I have, and this is my parting shot. I'll read the flames if I have the patience, but I will try not to get further involved.

I admit to using a few alkalines at times, but either where laziness is more attractive than performance, or where nothing else fits yet. If I could change all to Li-ion or lithium thionyl chloride types, I would. Specifically, the only time I justify an alkaline is when I need a PP3 that is ready to use, between long periods of disuse. For anything else, I find another way.

Reply to
Lostgallifreyan

rechargeable and see how hot it gets.

John W. measured something like 90A from a shorted rechargeable (NiCd, IIRC) 9V battery. Enough to cause a real explosion.

Best regards, Spehro Pefhany

--
"it's the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Reply to
Spehro Pefhany

rechargeable and see how hot it gets.

I used to have a badly damaged wireless mic that caught fire while in use. If it hadn't been in a thick leather case the user would have had third degree burns where the ni-cads failed. He got some first & second degree burns as it was. The inside of the leather case was soaked with the contents of the vented cells, which would have caused more damage. The brand & model information was burnt off, along with most of the circuitry. The man using it reportedly grabbed it from his chest & threw it across the room before it could do more damage. When they showed it to me they didn't know who made it, and the dealer they bought it from was out of business.

--
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.
Reply to
Michael A. Terrell

rechargeable and see how hot it gets.

Duracell quote PP3 9v internal resistance as 1.7ohm, which makes the Short circuit current 5.29 Amps - not nearly as much as a NiCd!

formatting link

--
http://www.petersparrots.com    http://www.insanevideoclips.com   
http://www.petersphotos.com

     ( 
     ))
    (((
    ))))  
   (((((
 /`-./\.-'\
 \  /  \  /
  )      (
  \      /
   %%%%%%
    %%%% 
    %%%% 
    %%%% 
    %%%% 
    `--'
Reply to
Peter Hucker

Nah - he waved each of the smoke alarms at his dodgy homemade 12V fusebox.

Reply to
ian field

What do you think set the parrots on fire in the first place? It wasn't his all lead & plastic Chinese smoke alarms.

I love the smell of smoked parrot, in the early dawn of the morning!

--
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.
Reply to
Michael A. Terrell

A few years back I bought a stack of £1.99 smoke alarms from a supposedly reputable chemists chain (the non-special offer price was quite a bit higher). These alarms became insensitive to smoke after only a couple of months - pressing the test button worked but holding a cigarette to the sensor no longer set it off. The landlord subsequently installed commercial duty rechargeable smoke alarms.

The £1.99 alarms turned out to be good value for the batteries they contained, a handy source of battery clips and I may eventually find a use for the very loud piezo sounders.

Reply to
ian field

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.