My new red P7 Maglite !Update 7.8.08!

I have just finished my Mag P7 Mod.

It is driven by 2x 18650 in series. The voltage can be adjusted with poti on the circuit board from 0 to about 2V under the input voltage.

Since the diameter of the Dhs heatsink was a little bit too big I removed the anodizing with NAOH and left it a little bit longer in the NAOH to get the heatsink smaller.

After that I reanodized the heatsink in red to get a proper electrical insulation.

I mounted the P7 with a mixture of thermal grease and epoxy with a ratio of about 66%-75% thermal grease. Therefore the led can be disambled easily with a little bit pressure.






Nightshots:

The tree is about 40m away


With aspheric lens ( 52mm one from surplusshed)


high-res pictures:
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4005.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4002.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4003.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4006.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4004.JPG

high-res beamshots
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4008.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4012.JPG
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/IMG_4013.JPG

for german readers
http://daoriginal.da.funpic.de/?item=maglite-seoul-p7-power-led-mod

Update 14.07.08:

Video:
http://de.youtube.com/watch?v=pp84xr0N2gw

And now with modes:

now after some troubles I finally finished the PWM-Dimmer

It should work with nearly every circuit because it uses a high pwm frequency at about 15khz and up to 30khz.

It is programmable so if you want you can customize the modes and add features like temperaturemonitor and so on.

This build has following features:

Modes:
very low
low
middle
high
very high

SOS
Strobe
High frequency strobe

Lost flashlight mode ( it blinks every 5 seconds in this mode. So you can always find it in the dark and consumes very little batterypower)

Fade in and fade out

Batterymonitor for up to 4 Li ion cells.
The number of cells can be setted with the button on the board.
Other cells like Nimh and custom voltage cut offs can be programmed as well.
It can also be turned off.

It works from 2V up to 22V

high resolution:

http://daoriginal.da.funpic.de/data/pcon/pcon1.jpg

I will try to make a video this night

And again, if you want one you can pm me.
It should not cost that much because the components are available everywhere.
but I have to calculate

Click to expand...

Update 7.8.08
Finished my blue Mag 3D now.
It has a new silicone rubber cap on the switch which will light up in blue color when the modes are changed.

It will run with 2, 3 or 4 lithiums in series and has 3 modes low middle and high.




And again here are the high resolution links:

http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/bluemag/blue1.jpg
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/bluemag/blue2.jpg
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/bluemag/blue3.jpg
http://daoriginal.da.funpic.de/media/1/Image/Maglite P7/bluemag/blue4.jpg

Re: My new red P7 Maglite

Looks great!!! :twothumbs

And we would really love to see some beamshots, so what we can and

Re: My new red P7 Maglite

what drivr are you using? looks interesting.

Re: My new red P7 Maglite

Yeah I will post some beamshots when it is dark outside.

The driver is a selfmade one.
It can handle up to 6A and maybe a little bit more.
It is still in testing phase and needs a little bit tweaking here and there.
If it will work without problems maybe I can offer some

Re: My new red P7 Maglite

Der Wichtel said:

If it will work without problems maybe I can offer some

Click to expand...

Re: My new red P7 Maglite

Looks very nice, when you say the driver is 6 amps, is that to drive the P7 at 6 amps or it can handle 6 amps in and yes it realy does look very interesting
Are you going to be making some spares :thumbsup: if so were do i send the money!!!

Re: My new red P7 Maglite

@ DocD

the driver should be able to give 6A to the LED. Maybe more

So theoretically you can drive two P7 with 2.8A each in parallel but I have only one P7 to test. I want to replace the P7 with some high power resistors to find out how much the driver in its actual state can handle.
But where can I get 20W resistors :twothumbs

The output voltage is actually limited to 12V. But with different components it should be able to go up to 25V ( I think).

Besides I need to get this thing smaller. The driver has a diameter of 34mm and will just fit with the DHS heatsink with the hole on the bottom. But I don't think it will fit with the new DHS P7 heatsinks.

I have to find a source of cheap ceramic capacitors here in Germany then I can get this smaller.

I have updated the beamshots

Re: My new red P7 Maglite

Many thanks for your reply, i look forward to see more of you modding the your driver i see diffrent colours from the P7 or is it the tree changing the colours ? cheers DocD

Re: My new red P7 Maglite

by the way.
does anyone has an idea of how I can shorten the spring in the tailcap?

Because if I shorten them then the diameter of the spring will be too big for 18650.

Re: My new red P7 Maglite

KD shorty spring the first time round i mod a std spring so it would fit in the base of the tail cap, removed the coating from the inside of the cap and it work's ok

Re: My new red P7 Maglite

Thank you. I'll have a look on that

Re: My new red P7 Maglite

Nice Mod!

I like the aspheric...

Re: My new red P7 Maglite

toby_pra said:

Nice Mod!

I like the aspheric...

Click to expand...

Me too... simply spectacular!!!!!!!!!!!!!!! :thumbsup::thumbsup::thumbsup::thumbsup::thumbsup:

Re: My new red P7 Maglite

more detail on the driver please, interesting one.

Re: My new red P7 Maglite

rizky_p said:

more detail on the driver please, interesting one.

Click to expand...

I can only tell more when my new oszilloscope arrive on 5.7.08.
With a little bit tweaking yesterday night I got the driver in a stable state.
However I'm actually testing only with one P7, since I have to look how I can connect a controllable load on it.

First calculations of the price with better components than in my prototype is 20€ (+-1€)

Max Vin will be around 20V so that Vout can go up to 18V.
The driver drives the P7 with 3.2A stable but I don't have the courage to give the P7 more amps since the last P7 made around 3.7A-4A.

By the way it is not a current regulator since the shunt for measuring the current will draw too much energy with that much load and the driver will become not very efficient. However I don't have any bad experiences with constant voltage regulators in combination with LEDs.

I hope these are the details you want

Re: My new red P7 Maglite

12Johnny said:

Me too... simply spectacular!!!!!!!!!!!!!!! :thumbsup::thumbsup::thumbsup::thumbsup::thumbsup:

Click to expand...

This picture is not the aspheric

Re: My new red P7 Maglite

you should order a short spring from KD, its not as hard as the stock spring and its top fits even AA sized batteries.
the perfect choice for 18650 solutions

Re: My new red P7 Maglite

Der Wichtel said:

This picture is not the aspheric

Click to expand...

Oops... then, it should be this one:



:thumbsup:

Re: My new red P7 Maglite

Ok I have managed to get the driver smaller. I will make some tests now with the new one

Re: My new red P7 Maglite

A question please to all the knowledgeable modders - is there a booster circuit/driver available on the market that will enable one to drive the SSC P7 with only 2 NiMH D-cells? Or am I asking for something that does not exist?