Illuminated
Enlightened
Brightnorm,
Ditto - and Thanks!
John
Ditto - and Thanks!
John
Brightest possible flashlight?
- Thread starter JustAGuy
- Start date
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Thanks for the info John. I really believe that there is a way to pull this off because I put 4 AA NiMh together and they fit in the Mag-Lite's barrel with a hair to spare. Now it's just a matter of time till I work out an easy way to pull this off. I really think it will be worth it because you would have the power of a 6D Mag in the size of a 2D Mag. From what I've read so far, it should even outdo a Surge by some margin. Anyone here that owns a Surge knows that is a heck of a lot of light that we are talking about here.
Illuminated
Enlightened
X-CalBR8,
I've thought the same thing since I use AA NiMH's for most things. I've gone so far as to check the fit of 4 AA's in the barrel of my 2D, and it's close, but not tight. I figure there are two basic options here.
I could buy solder-tabbed cells and string them up with suitable contacts for the ends of the pack, and I'd probably have to use hot-melt glue or radio/TV cement to anchor the cells together for dimemsional stability.
Another possibly better option, although more involved, would be to create double-sided round printed circuit boards for the top and bottom of the pack, with large pads to solder (or otherwise attach) spring contacts to for the individual cell negative ends. My design goal is to create a nice, stable, drop-in style 8 AA series holder for standard button-top cells. Centered between the two boards would be a small diameter center post that will fit through the four cell clusters, without increasing the overall diameter of the pack, and would also serve to get the negative end of the series string to the opposite end of the pack, similar in concept to a more conventional drop-in Mag or SL battery stick. I might have to include additional posts located on the outside between adjacent cells for additional pack stability. This configuration should provide a long lasting, dimensionally stable battery holder that would drop right into a 2D light, and accept standard AA cells of any type. I haven't yet found a source (or donor) for the individual battery negative spring contacts, but I've already sketched what the circuit boards and assembled configuration would look like. I've made my own circuit boards in the past, and it is not all that difficult, although perhaps a bit time-consuming.
That's all for now...Happy Holidays!
John
I've thought the same thing since I use AA NiMH's for most things. I've gone so far as to check the fit of 4 AA's in the barrel of my 2D, and it's close, but not tight. I figure there are two basic options here.
I could buy solder-tabbed cells and string them up with suitable contacts for the ends of the pack, and I'd probably have to use hot-melt glue or radio/TV cement to anchor the cells together for dimemsional stability.
Another possibly better option, although more involved, would be to create double-sided round printed circuit boards for the top and bottom of the pack, with large pads to solder (or otherwise attach) spring contacts to for the individual cell negative ends. My design goal is to create a nice, stable, drop-in style 8 AA series holder for standard button-top cells. Centered between the two boards would be a small diameter center post that will fit through the four cell clusters, without increasing the overall diameter of the pack, and would also serve to get the negative end of the series string to the opposite end of the pack, similar in concept to a more conventional drop-in Mag or SL battery stick. I might have to include additional posts located on the outside between adjacent cells for additional pack stability. This configuration should provide a long lasting, dimensionally stable battery holder that would drop right into a 2D light, and accept standard AA cells of any type. I haven't yet found a source (or donor) for the individual battery negative spring contacts, but I've already sketched what the circuit boards and assembled configuration would look like. I've made my own circuit boards in the past, and it is not all that difficult, although perhaps a bit time-consuming.
That's all for now...Happy Holidays!
John
brightnorm
Flashaholic
- Joined
- Oct 13, 2001
- Messages
- 7,161
StreamChucker[/QB][/QUOTE]
The $60.00 came from my own accidental and embarassing swapping of your $25.00 with Illuminated's $60.00.
I've altered my post accordingly.
I feel bad about that error; I know how I feel if someone misquotes me, even accidently.
(No self-thwacker graemlins)
Regards,
Brightnorm
<font size="2" face="Verdana, Arial">Dave,,
The $60.00 came from my own accidental and embarassing swapping of your $25.00 with Illuminated's $60.00.
I feel bad about that error; I know how I feel if someone misquotes me, even accidently.
Regards,
Brightnorm
Ron Schroeder
Enlightened
My scarriest "what the heck is that!!!!" light is a modified PAL light with a seriously overdriven 5W Luxeon with a lower than normal Vf. It's on a copper heatsink but I still only run it for a few seconds at a time. With really fresh batteries, you only get a few bursts of light before it seriously dims but the first shot or two really has the WOW factor for a "keychain light".
Ron
Ron
John:
Who charged you $10 shipping on the PowerStream 1/2 D cells. They quoted me $3 per cell shipped with a 10 cell minimum. Thus far I've placed and received a 20 cell order and a 10 cell order.
Did you buy 5 cells for $25 = $3 * 5 cells + $10?
Who charged you $10 shipping on the PowerStream 1/2 D cells. They quoted me $3 per cell shipped with a 10 cell minimum. Thus far I've placed and received a 20 cell order and a 10 cell order.
Did you buy 5 cells for $25 = $3 * 5 cells + $10?
James Van Artsdalen
Enlightened
<font size="2" face="Verdana, Arial">Do these have button termination? Are they really 1/2D or are two taller than a D?
I'd like to find 1/2D with button tops to put eight in a 4D maglite.
Illuminated
Enlightened
Lemlux,
I initially placed an order for 10 cells @ $3 ea. + $10 S&H. After I received the shipment, I realized that I'll be using them in multiples of three, and that they wouldn't be available much longer, so I ordered five more. This second order came to 5 * $3 ea. + $10 s&h. for a total of $25. Oh well, they ARE good cells...so I didn't bother complaining.
Immediately after calling the order in, I called again to inquire about getting some shrink tubing to pack them up in, because with their short length, they kind of pour out of the tube like jelly beans or something, and I thought it would be nice to have a battery "stick". Mark said he thought he could send me some, though he wasn't sure how he'd have to put a part number on it to ensure that it would go out with my batteries. He didn't mention additional cost, and I didn't think to ask. This wasn't reflected on the invoice letter I received a few days ago. I'm still waiting on the shipment...
BTW, James V. - Yes, they have button tops, but they are 37mm tall vs a standard "D" which is 60-61mm. I'm doing a 4D *ag mod (mine has a "D" prefix ser.#) where 6 will fit with not quite room for a 7th. I'll be adding a 1" spacer to get good spring pressure and electrical contact.
I'm also setting up a 2D (also "D" prefix) with three 1/2D's and a 1/2" spacer to run a Carley #805 potted lamp. It won't be a barn burner like the 285 lumen mod Lemlux did, but should be respectable with about 1.5 hours runtime. Strictly utilitarian (read: emergency backup).
Later - John
I initially placed an order for 10 cells @ $3 ea. + $10 S&H. After I received the shipment, I realized that I'll be using them in multiples of three, and that they wouldn't be available much longer, so I ordered five more. This second order came to 5 * $3 ea. + $10 s&h. for a total of $25. Oh well, they ARE good cells...so I didn't bother complaining.
Immediately after calling the order in, I called again to inquire about getting some shrink tubing to pack them up in, because with their short length, they kind of pour out of the tube like jelly beans or something, and I thought it would be nice to have a battery "stick". Mark said he thought he could send me some, though he wasn't sure how he'd have to put a part number on it to ensure that it would go out with my batteries. He didn't mention additional cost, and I didn't think to ask. This wasn't reflected on the invoice letter I received a few days ago. I'm still waiting on the shipment...
BTW, James V. - Yes, they have button tops, but they are 37mm tall vs a standard "D" which is 60-61mm. I'm doing a 4D *ag mod (mine has a "D" prefix ser.#) where 6 will fit with not quite room for a 7th. I'll be adding a 1" spacer to get good spring pressure and electrical contact.
I'm also setting up a 2D (also "D" prefix) with three 1/2D's and a 1/2" spacer to run a Carley #805 potted lamp. It won't be a barn burner like the 285 lumen mod Lemlux did, but should be respectable with about 1.5 hours runtime. Strictly utilitarian (read: emergency backup).
Later - John
