what battery for this Infrared driver.

[diodelaser]

InfradRed
3W InfraRed LED 850nm IR Emitter on 2cm Star (1.5V~1.7V DC) - Free Shipping - DealExtreme

Driver
17mm 1000mA 5-Mode with Mode-Memory LEDDriver Circuit Board for Cree XR-E Emitters (0.9~4.5V Input) - Free Shipping - DealExtreme

i have this two what battery should i use to power the driver and the infrared.
any help would do and how do i connect it. :thanks:

 

[Nocturnal]

that driver requires .9-4.5 volts . so one lithium should be fine, eg,. 18650..
make sure you heat sink that led.

Chris

 

[Cyparagon]

1A sounds too high. 3W LEDs run more like 700mA max, don't they?

 

[benmwv]

1A sounds too high. 3W LEDs run more like 700mA max, don't they?

Vf of the led is 1.5-1.7 so if that is truly a 3 Watt led he could drive it at nearly 2A, right?

 

[Nocturnal]

some guy on DX tested it, 'ran for hours' @ 1.5A

 

[Cyparagon]

^^Never mentioned the light degradation, did he?

Vf of the led is 1.5-1.7 so if that is truly a 3 Watt led he could drive it at nearly 2A, right?

You forget it's from china. It doesn't work like that

I did some looking on ebay, and this "3W" red is only 1.6W, this "3W" 940nm is only 1.4W.

So nevermind... their max current does seem to be around 1A, but if you want them to last for more than 100hours, you probably shouldn't run them at their max current.

 

[diodelaser]

that driver requires .9-4.5 volts . so one lithium should be fine, eg,. 18650..
make sure you heat sink that led.

Chris

But the 18650 is a 3V and the led is saying only with 1.5V~1.7V DC wouldn't damage it but if so can i use another 3V battery like the one that are the size of a AAA battery

 

[Nocturnal]

since the driver is limiting the current, the voltage will adjust accordingly with the VI curve. The driver will turn the rest of the voltage into heat. Plus the 18650 is 4.2v when fully charged and 2.75 when flat (protected).

 

[BShanahan14rulz]

what about a couple of NiMH AA's or something like that?

 

[diodelaser]

since the driver is limiting the current, the voltage will adjust accordingly with the VI curve. The driver will turn the rest of the voltage into heat. Plus the 18650 is 4.2v when fully charged and 2.75 when flat (protected).

So can I the one that is the size of a AAA it say is a 3V.
Or can I use tree of the AAA 1.5V :thanks:

 

[Nocturnal]

both options will work. the AAA size 3v is called a 10440. try and use a 14500 or 18650. you will get much longer run time

 

[BShanahan14rulz]

if you use 3 quality AAA, you can run it with that. Even 3 NiMH should work, right?

 

[diodelaser]

both options will work. the AAA size 3v is called a 10440. try and use a 14500 or 18650. you will get much longer run time

Ok thank you and thanks for the telling me the rite name 10440... :thanks:

 

[diodelaser]

if you use 3 quality AAA, you can run it with that. Even 3 NiMH should work, right?

Ok thank you for the info so it should be 3 volts to run this Infrared LED... well thanks anyways...:thanks:

 

[diodelaser]

OK sorry for this but how do i connect everything I could see from the picture of the driver where is neg and pos but what goes on the bottom such as the positive of the battery and the where does the negative of the battery goes. And where exactly do I put the cables from the drive to the LED.

 

[Nocturnal]

woops, put a switch