Led flashlight question

[Dean54449]

hello, I'm new here and have a led flashlight question. It is a k5 tactical flashlight, 1 aa battery, three modes. High, low, and strobe, I use the flashlight daily at my job. I would like to get rid of the low and strobe features cause they cause more trouble than what they are worth. I did this on a different brand flashlight by bypassing the little circuit board and just wiring the led direct to the batt. and switch. I try this with the k5 and its a no go. What am I missing? One batt won't power it without the circuitry but 2 will. So I but the light back to stock and it works with just the one battery like it is ment to. Is there any way around this? Thanks for any help!
Dean

 

[Martaine2005]

Hi Dean,
The cicuitry is more than likely a DC to DC boost converter. Hence why it works with two batteries without the circuit.
You may be able to replace the circuit with a single boost converter from Ebay.
But I doubt you would be lucky to find one that fits your torch housing.

Martin

 

[BobK]

The word "torch" used by you Brits always amuses me. Here in the US, a torch is what the towns people are carrying when they storm my mentor (Dr. Frankenstein)'s castle.

Bob

 

[Martaine2005]

Hahaha Bob,
I just re-read my post. My, doesn't that word sound ancient!!
But Brits are lazy. So one syllable words flow easier!

I don't know why I used that out of date term as the OP used it 5 times!!

Martin

 

[KJ6EAD]

The multiple modes with one button suggests the presence of a microcontroller and either a current regulating circuit or more likely a simple PWM drive. Your chances of successfully modifying it to your purpose without destroying it are small. Just buy a Fenix PD35, 960 Lumens for $70. It has 6 modes but the mode select is accomplished with a separate switch so it remembers the brightness level at switch off and returns to it when switched back on.

 

[bigone5500]

Hahaha Bob,
I just re-read my post. My, doesn't that word sound ancient!!
But Brits are lazy. So one syllable words flow easier!

I don't know why I used that out of date term as the OP used it 5 times!!

Martin

They could have called it a 'FlashTorch' instead of flashlight....