Digital Devices & Batteries

[Raymond Sanderson 2Participant @raymondsanderson2]

Posted by V8Eng on 02/08/2014 11:10:49:

How does one walk (in my case roll) around the workshop tethered to a power output with any tool supposed to be portable take anywhere to use??????

Hi Raymond.

I suppose you could make a small battery pack to attach to a belt or something similar, a lead could then go to the instrument?

Electronic stores keep battery holders and boxes, (perhaps using rechargeables), it could then be a case of deciding how to get the right voltage output, many excellent suggestions for that already on here.

OOPS, just realised some of this is covered by Les Jones post, my apologies for that unintentional error!

Edited By V8Eng on 02/08/2014 11:24:32

Yes rolling round its my mode of transport either the wheelchair or the draughtsman stool which is usual way of rolling round the workshop.

Not a bad idea one battery pack for each different type of tool used only two being the same types of button batteries and I guess voltage.
Still I do have an old UPS with a brand new battery in it sitting idle with a set up to switch from one to the other that just might work except for lugging the brick around LOL. Its still has potential.

[V8EngParticipant @v8eng]

Hi again Raymond.

Must admit I was thinking along the lines of perhaps 2-4 AA type cells in a little box (regulators etc if needed) with a lead attached, which could go to mini plugs and sockets on the adapters you make for the instruments.

I would have thought the current drain ought to be fairly low, so nothing too big or bulky would be needed and, if you used rechargeable cells they could be charged up at the end of a workshop session.

Don't by any chance use an electrically powered wheelchair do you?

Edited By V8Eng on 02/08/2014 15:09:18

[Mark P.Participant @markp]

Hi all, I have solved my problem with the batteries going flat at the wrong moment (thanks for your input Les).

I made a dummy battery to the same dimensions of a CR2032 battery with 2 brass discs of brass with a wire soldered to each and stuck them together with double sided tape. I connected them to a pair of 1.5v D cells (the big ones) wired in series to give me 3 volts, only 1 dummy battery is required in each readout and bingo all systems go! Next is to build a suitable 3 volt power supply.

Mark P.

[Raymond Sanderson 2Participant @raymondsanderson2]

Posted by Michael Gilligan on 02/08/2014 12:44:43:

Posted by Raymond Sanderson 2 on 02/08/2014 12:40:07:

I did eventually pull apart AA battery and yes there they were.

.

Raymond,

… [stacked] ?

May I just ask what voltage that AA battery was ?

Thanks

MichaelG.

Michael I did this after it was brought up on another forum some years back. The battery had run its life as a recharge. I think it was 2400ah don't hold me to that. I didn't look at each or even one button battery voltage.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Raymond Sanderson 2 on 03/08/2014 05:36:42:

Posted by Michael Gilligan on 02/08/2014 12:44:43:

… May I just ask what voltage that AA battery was ?

…

Michael I did this after it was brought up on another forum some years back. The battery had run its life as a recharge. I think it was 2400ah don't hold me to that. I didn't look at each or even one button battery voltage.

.

Raymond,

I'm sorry to labour this, but I remain confused. …

So far as I am aware, the AA size is reserved for single cells, and the nominal voltage would typically be 1.5 for a primary [throw-away], or 1.2 for a rechargeable. [These being the voltages generated by the cell chemistry].

I suppose it would be possible to physically stack a number of small button-cells [with insulators between them] and then connect them in parallel … but I cannot see any reason why they would go to that trouble.

A stack of button-cells would "naturally" connect in series, so the battery voltage would be some multiple of either 1.5 or 1.2

The details are probably lost in the mists of time, but; if you do happen to remember, would you please let me know details of the battery and/or the equipment in which it was used.

…. To avoid boring everyone else, a PM might be best.

MichaelG.

[Raymond Sanderson 2Participant @raymondsanderson2]

I hope this helps you  Link

Edited By Raymond Sanderson 2 on 03/08/2014 07:27:31

[Les Jones 1Participant @lesjones1]

Hi Raymond,
I'm confused as to the relevance of the A23 BATTERY. The nearest connection I can see was a comment about an AA or AAA CELL being constructed from a number of button CELLs. If it was made from a number of cells it would no longer be a cell but a battery.

Les.

Edited By Les Jones 1 on 03/08/2014 08:42:17

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Les Jones 1 on 03/08/2014 08:37:07:

Hi Raymond,
I'm confused as to the relevance of the A23 BATTERY.

.

Exactly my point, Les

A23 is 12 volts, and it is a Battery of eight 1.5v cells

… it is also not the physical size of an AA

My confusion is now resolved.

MichaelG.

[Neil WyattModerator @neilwyatt]

AA = Aussie Approximation

nEIL

[Raymond Sanderson 2Participant @raymondsanderson2]

The A23 was the example I found first nothing more.

[Author]

Posts