14500s for Mag623?

[MemphisMagD]

Ok, I'm a newb, but I love my ROP using 7 eneloops in a 2d body and was wondering about the feasibility of taking the same host to a Mag623. Could I use 4 14500 lithiums in my 6aa-2d holder with a couple of dummies? I'm not looking for great runtimes or anything, just some fun WOW factor. I know I still need a bipin adapter and other bits.

 

[divine]

I don't think so.. a 623 is a lamp that needs 10 amps of current.

The only cell that might be able to do it is LifePO 14500's, and I think those are only 300-400mAh cells. If they were 400mAh, the high estimate, 10 amps would be 25C (25 times the cell's 1 hour current).

If they handled the load, I think you'll kill the cells by discharging them that fast.

 

[divine]

Another thing is that 500mAh cells putting out 10 amps of current would only have 3 minutes of runtime.

 

[MemphisMagD]

Another thing is that 500mAh cells putting out 10 amps of current would only have 3 minutes of runtime.

But as I understand, it only takes a second or two to start fires with that bulb so 3 minutes still gives me my wow. Just want to make sure the only fire is in front of the bulb and not behind it

 

[VidPro]

the minimum for it to even operate would be either the IMR or Li-FE 14500s but you will still wipe them out.
gotta think bigger, or more, like 2p4s 18650 imr or those big fat li-fes

 

[R@ndom]

Try some in parallel, LOTS in parallel actually.

 

[MemphisMagD]

So what would you guys think of the same bulb on top of D sized lithiums in a 4d host?

 

[R@ndom]

So what would you guys think of the same bulb on top of D sized lithiums in a 4d host?

i don't think their circuits can handle it. Try IMR 26650's or 5 AW 25500 with regulation.

 

[Chodes]

This is real easy.

4 x IMR26500 in a 3D Mag. Shorten the D tailspring and use some type of tube to hold the smaller diameter cells in the Mag body. 5 - 30 minutes work there.

Now decide which one of 3 softsarter / drivers you want from these CPF members:

AlanB: most expense , seconds to install, REGULATED
AW: less expense , seconds to install NOT REGULATED
JimmyM: least expense , requires some assembly , then seconds to install REGULATED

You'll get about 8 minutes screaming bright run, about 10 and a half minutes max.

For many more options , use 4D with 5 x IMR26500 and either JimmyM or AlanB. Then you could significantly increase the output compare to a 623, or use the same light for a Mag 85 or 5761 with about an hour run time.

My other favourite Osram bulbs are 62138 and 64458.
61238 would pop with 4 x IMR26 cells , needs regulation. Imagine just as bright as the 623 but smaller hotspot (actaually has an obvious hotspot)
64458 - kinda like 62138 beam but brighter than 623.

It's hard to recommend AW driver over the regulated versions, here's how I put mine to maximum use:

3D with 4 x IMR26500 and 623 bulb.
Add Fivemega 34mm extension tube and I can add a fifth IMR26500 for more ouput and more throw using 64458 or double the run time with a 64440 bulb.

 

[Mjolnir]

You might want to check out the IMR 26650's from batteryspace. They are rated for 10A continuous current, and are actually around 4000 Mah. It might be hard to fit 4 in a 4D maglite without doing tailcap mods or using an extender of some sort.

 

[lolzertank]

Until A123 starts making 14500s, there's no way 14500s will work.

 

[R@ndom]

Until A123 starts making 14500s, there's no way 14500s will work.

There are Li-fe-po4 14500's, in WalMart.

 

[rizky_p]

not all LifePo4 battery are the same. The one from A123 system is one that sits on the top performance wise.

I have Luxluthor-made(i wish he still making it, such an excellent built) pack consisting of 12xELite AA 1700mah + 1x SubC 1700mah 13cells total feeding the hungry 623. You certainly dont want to run 623 more than 1 minute in full blast, hot is an understatement. With all those recent multi P7/MCE lights, 623 still a monster!

My 623 burning a newspaper.
http://www.vimeo.com/740114