Imworking
Newly Enlightened
Does anyone know how long a Pacific XLR model will run continuously on a CR2 battery?
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Pacific XLR and CR2
- Thread starter Imworking
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Imworking
Newly Enlightened
Wow! Starting the get a "Thread Killer" complex here. Seems like every thread I start or post a response to just dies. Thanks for all the input. Guess we can close this puppy.
The Pacific XLR draws about 90 mA at 1.5 volts and about 50 mA at 3.0 volts. With a 750 mAh CR2 3.0 volt battery the run time would then be about 12 to 15 hours. The actual run time depends upon the individual LED. We have had a XLR Pacific run to 44 hours with a AA alkaline battery before it started to drop in light output. When a Seoul P4 or Lux II or cree or K2 is driven under 50 mA the LED may not follow the manufacturers standard power curve. The typical light output is about 80 Candela or about 7 to 9 Lumens. A Pacific SP will draw about 1 Amp with a light output of about 500 Candela. Current draws can vary as much as 25% and light outputs by 40%. There is that much tolerance in LEDs, electronics and batteries. We have also seen as much as a 25% increase in light output just by cleaning the ends of a new unused battery.
Curt
Curt
I wish I knew- I would be happy to tell you. I only have a Baltic XLR (X) stamp on positive gold contact. It runs a very loooong time on a fresh eneloop AAA or energizer lithium AAA. I turned it on while camping this weekend and it was still producing useable light 12hrs later- I got tired of waiting for it to dim and turned it off. I am trying to limit my lights to AAA and AA because I like the eneloops so much and I have tons of primary alkaline "leftovers" that my digital camera can not use any longer.
Also have a SP Baltic Lux III- it is as bright (and smaller) as the new energizer cree 1 AAA that I picked up at Target -clearance for $12.88
Also have a SP Baltic Lux III- it is as bright (and smaller) as the new energizer cree 1 AAA that I picked up at Target -clearance for $12.88
MWClint
Enlightened
I have a Pacific P4 XLR used primarily with CR2 (also have AA/AAA) bodies
and the runtime is long enough that i'm still on the original supplied battery
after months of intermittent use, so Curts calculation of 12-15 hours sound good to me. 750mah capacity/50mah draw=15hrs makes sense.
and the runtime is long enough that i'm still on the original supplied battery
after months of intermittent use, so Curts calculation of 12-15 hours sound good to me. 750mah capacity/50mah draw=15hrs makes sense.
