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FrozenGate by Avery

Battery Connection

randomlugia

randomlugia

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Hey, I was just wondering how to connect the batteries in this host to a rckstr driver. http://www.dealextreme.com/details.dx/sku.79

Do I just solder the positive and negetive wired to a spring, and put it to the top of the batteries? That's always how it's done in laser modules and pointers. I don't have the host yet so I'm not sure what the inside looks like. :P
 





Anybody know? I'm not sure if people have used this host before, but it looks like any DX host, and somebody here reccomended it for me. :P
 
if it takes 3aaa it probably have a flat board with a spring, if so just poke a lil hole and place a wire through it and solder it to the spring, and do the same for the neg, but the neg wire will be soldered on the out side of the flat board
 
Ok, and will the flatboard be labled positive and negetive, or is the spring always pos?
 
Remember.. 3AAA+rkcstr driver+PHR 803T= the need for 10440's.. the 4.5v provided by 3 primaries is not enough.

You probably did know that, but just in case.. ;)
 
Unfortunately, that battery is comprised of six 1.5v button cells, and only has a capacity of 200mAh.. this doea not mean it will run a laser at 100mA for 2 hours though unfortunately.. actually only maybe 20min-1/2 hr before you lose output:(

You will either have to get one of those 6AAA dorcy's, or wait to get a flexdrive for your current host to run the AAA primaries.

IF you opt for the 10440's, keep a keen eye on the voltage left in them.. the first in series will drain faster, and is easily ruined by over-discharge. It is best to rotate them upon recharging all three to prevent massive wear on a single battery.
 
randomlugia said:
Yes I did, but I'm still trying to find a way to get around it. Any suggestions? Do they make 3V AAAs? I really want to work with something simple like AAAs or AAs but if I can't, could I drill it out and use a C-Z? http://www.radioshack.com/product/index.jsp?productId=2104684
Click to expand...


They make 3.6V AAA's... But they are not protected. So like Glasserfan said, be careful not to use them up too much. Better to recharge often, than to kill one of them. And have spares. The one that could get damaged won't necessarily be the first in series. It will be the one that has a lower capacity and discharges first. If it discharges too low, the other batteries can even charge it in reverse.

But this way you can make a small laser using Rkcstr's driver. Keep in mind, three Li-Ions when full will have 12.6V. The polarity protection MOSFET on the input is rated for 12V max. It is likelly the voltage would drop under 12V under load, but to be on the safe side, you could use an Si diode in series, to drop the voltage a little (much like when people use a FlexDrive and two 3V batteries). With a linear driver, a diode in series actually won't reduce the efficiency of the system. In fact, the driver will heat up less (cos the diode will do some power wasting instead of it).
 
I'm going to use 2 10440s. The charger has an auto-off, so I don't need to worry about overcharging. That will give me 7.2V, minus a little with the driver. Does that sound good?
 
randomlugia said:
I'm going to use 2 10440s. The charger has an auto-off, so I don't need to worry about overcharging. That will give me 7.2V, minus a little with the driver. Does that sound good?
Click to expand...
Remember to use a dummy battery for the 3rd one. They sell them somewhere...
Do a google search.

BTW, for the connection, it will be a flat board with LEDs on it. Remove the LEDs, either by prying them off, or soldering them off, and you will have a flast board with solder blobs on the bottom. The outer ring of blobs is NEGATIVE, and the inner ring of solder blobs (right outside the spring), is POSITIVE. Now, you need to take a wire and bend it around the flat board, and solder to a negative blob, so when you screw the body on, it will make contact with the wire. Then, strip a long section off your second wire and stick it through a hole in a positive blob, and solder it to the spring for good contact. When you look at it, you will see what i mean ;)
 

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Dummy battery? Couldn't I just use a dead AAA? But mabye mixing batteries isn't such a good idea...

What do you mean bend the negative wire around, you don't sloder them both to the same side? Thanks for the picture.
 
randomlugia said:
Dummy battery? Couldn't I just use a dead AAA? But mabye mixing batteries isn't such a good idea...

What do you mean bend the negative wire around, you don't sloder them both to the same side? Thanks for the picture.
Click to expand...
Yes, you could use a dead AAA. But it has to be completely dead...
What i mean is, instead of poking it through the hole in the negative solder blob, make it go around the board, and then solder it to the blob.
 
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