Seoul P4+14500 cell?

chiphead · Mar 28, 2009

I've got a Seoul P4 in a MiniMag/AA, but I want to try using a single 14500 lithium ion cell as I think it would make a better rechargeable cell. Will the Seoul go up in smoke?

chiphead ( Always on the look out for more technology.)

yazkaz · Mar 28, 2009

As long as the system has effective heatsinking there shouldn't be a problem.
Also, depending on electronics, sometimes a 14500 is necessary to obtain optimum results (eg. GD board at high current rating).
A whila ago I had someone make me a GD917/Uxx0H module with custom copper heatsink. Output is great and so far no overheating problems (esp. angry blue from emitter) during intermittent use. I use exclusively 14500s or 14670s with dedicated dummy spacers.

BTW, what LE configuration do you have in your Mag?

chiphead · Mar 28, 2009

yazkaz said:
As long as the system has effective heatsinking there shouldn't be a problem.
Also, depending on electronics, sometimes a 14500 is necessary to obtain optimum results (eg. GD board at high current rating).
A whila ago I had someone make me a GD917/Uxx0H module with custom copper heatsink. Output is great and so far no overheating problems (esp. angry blue from emitter) during intermittent use. I use exclusively 14500s or 14670s with dedicated dummy spacers.

BTW, what LE configuration do you have in your Mag?

MadMax Seoul+Sandwich (P4-U).

chiphead

yazkaz · Mar 29, 2009

chiphead said:
MadMax Seoul+Sandwich (P4-U).

That I can't say, since I don't know the characteristics of the MM+ board.
At ~700ma I don't think the SSC is being driven hard, but if heatsinking is not adequete then there's still a chance of overheating and thus the angry blue.
Also I'm not sure about the max VIn allowed, so I don't know if a 3.7V LiIon is compatible.
Perhaps someone else could answer this question......

chiphead · Mar 31, 2009

yazkaz said:
That I can't say, since I don't know the characteristics of the MM+ board.
At ~700ma I don't think the SSC is being driven hard, but if heatsinking is not adequete then there's still a chance of overheating and thus the angry blue.
Also I'm not sure about the max VIn allowed, so I don't know if a 3.7V LiIon is compatible.
Perhaps someone else could answer this question......

That's ok, I don't think I'll throw caution to the winds this time. One more thing, any "Cree" sandwiches in the future?

chiphead

yazkaz · Mar 31, 2009

chiphead said:
One more thing, any "Cree" sandwiches in the future?

Some members have made Cree sandwich LEs but not with the Shoppe's components, especially custom heatsinks.
Also the Cree emitter may be too large to fit in a sandwich LE config so that its emitter base may have to be removed. See post 43 of this thread
https://www.candlepowerforums.com/threads/216656&page=2

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Seoul P4+14500 cell?

chiphead

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yazkaz

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chiphead

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yazkaz

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chiphead

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yazkaz

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