RCBS Chargemaster Battery supply

adamsgt

adamsgt

Jerry Adams
Now that I've decided to accept the results of the chargemaster dumps as stated by Al I'm moving on to providing battery power to the device.

The MTM die box is very versatile and seems made to accept this gear.

Loaded with battery, charger, and converter.

P1000004.jpg




Ready to go to Raton

P1000005.jpg


Only task remaining is to go to Radio Shack or Fry's to get a 5.5 mm connector to attach to the battery terminals.
 
OK, soldered up the connector , plugged it into the chargemaster and it worked like a champ. Interesting when I measured the voltage coming out of the RCBS transformer it was 13.13V and out of the battery it was 13.3V. Close enough. :D
 
Thoughtful setup.

gonna' get me one like it :)

'cept for one thing..... what did I miss here? What's the convertor for?

al
 
al,

From an earlier thread.

John
adamsgt said:
I couldn't find the thread that discussed powering the Chargmaster from a battery so I'll add my comments here. I bought a 12 V Sealed lead acid battery and charger for the Chargemaster and was considering different approaches to get the voltage down to the 9 V that is being supplied by the transformer. I just received a DC-DC converter from All-battery.com that will do just that. In fact you have a potentiometer to adjust the output voltage and a red display to show the voltage and current output, and only $20.00. So I put my multimeter probes on the transformer plug to determine polarity and lo and behold the transformer is putting out 13.3 volts. Obviously no need for a converter. Just whip up a cable now and run right from the battery. Shoulda checked that first. Don't know why I believed the label on the transformer. That certainly explains why people haven't had problems running on 12 volt batteries.
Click to expand...
 
Whats the blue thingy and all the dials and digital read outs built into the battery. Or maybe a better question is what kind of battery is that with all of the hooplaa attached to it.
I see the converter in the back ground.
 
go to wally world and get a sealed 12 v battery from the kidde car dept.
or do like me and use two 6 v [ cause i use them for flashlights ]
 
Vern that "blue thingy" is the potentiometer that regulates the ouptut voltage of the DC-DC converter. The digital displays show you the amount of ouptut voltage and current.The converter is just sitting on top of the battery. The thing in the background is the charger for the battery. Hey, the converter was only twenty bucks and that puts it in my criteria for "neat sh_t". Turns out that this is way overkill for the need. As Ray indicates this savagely violates the K.I.S.S. principle. Back in the sixties I had built nearly every piece of electronic test equipment in the Heathkit catalog, oscilloscope, VOM, signal generator, capacitor checker, vacuum tube tester, etc. Eventually gave it all away. Guess I felt a need to smell molten solder flux again. Now I just need to add a capacity Gage to this so I know when to recharge the battery. :D God, I got to get a life.
 
adamsgt said:
Vern that "blue thingy" is the potentiometer that regulates the ouptut voltage of the DC-DC converter. The digital displays show you the amount of ouptut voltage and current.The converter is just sitting on top of the battery. The thing in the background is the charger for the battery. Hey, the converter was only twenty bucks and that puts it in my criteria for "neat sh_t". Turns out that this is way overkill for the need. As Ray indicates this savagely violates the K.I.S.S. principle. Back in the sixties I had built nearly every piece of electronic test equipment in the Heathkit catalog, oscilloscope, VOM, signal generator, capacitor checker, vacuum tube tester, etc. Eventually gave it all away. Guess I felt a need to smell molten solder flux again. Now I just need to add a capacity Gage to this so I know when to recharge the battery. :D God, I got to get a life.
Click to expand...

So, reading between (and under and inside) the lines, I THINK what'cher saying is that the circuit board (and all appurtenances attached thereto) is superfluous?????


That what'cha' NEED is, is a badd'ry and a charger, and ya's k'in leave the charger at home if you want..... :D .... worst case you could jumper to your truck badd'ry.




LOL

al
 
I have one of the older RCBS pact models.
The thrower works off of AC to DC converter.
The scale is AC to AC.
So I cant run directly off of a battery.
However Jerry H. runs has one of the current styles and has his set up with X number of D cells hooked in series in a holder from Radio Shack.
He said his would get several matches or more to a set of batteries.

I used to use a car type battery for my set up but lost it in a move.
I recently tried using one of the small closed cell jobs from the local hardware store, hooked into the converter and it lasted about 1 1/2 days.
Died right in the middle of the match.
So this week before the weekend match I plan on going down to Wallyworld and getting another small car battery. This should at least last for a practice and a match, maybe x 3 or 4
 
alinwa said:
so, reading between (and under and inside) the lines, i think what'cher saying is that the circuit board (and all appurtenances attached thereto) is superfluous?????

well, yeah. But i can charge my cell phone or ipod from the circuit board. Wait a minute, i don't have an ipod. Oooh, something more to buy.


that what'cha' need is, is a badd'ry and a charger, and ya's k'in leave the charger at home if you want..... :d .... Worst case you could jumper to your truck badd'ry.

ok be that way then. :p

al
Click to expand...


1
 
OK here's how these configurations look.

D cell battery pack.

P1000006.jpg



Rechargeable Sealed Lead Acid battery.

P1000007.jpg




And last but not least the superfluous DC-DC converter.

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Kinda fun getting back to chasing electrons around. There are some side benefits to playing around with this stuff. For years when I go to a certain shooting range I pass a large building with a sign that reads "Mouser Electronics". Always been a little curious as to what they do. When doing a google search for DC power connectors for this project the name Mouser Electronics was right up top. A visit to their web site revealed an incredible variety of electronic connectors. Have to call them a see about a visit.
 
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