Battery question for a specific flashlight (Astrolux EC01)

andygold

Newly Enlightened
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Sep 20, 2004
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NY
I'm looking for the "best" 21700 battery for the Astrolux EC01. I ordered it last evening, and I won't have it for likely a month or so. So, I don't have the owner's manual that would most likely discuss such things. I'm looking to order the proper battery. I've a bit of experience with standard 16340 protected batteries, but nothing with high-drain cells or the flashlights that need them.


I've seen:
Samsung 50E INR 5000mAh 3.7V High-Drain 10A $9.50
Xtar Molicel INR 4200mAh 3.6V High-Drain 45A $8.95
Samsung 40T INR 4000mAh 3.6V High-Drain 35A $7.95
Samsung 30T INR 3000mAh 3.7V High-Drain 35A $11.00

Some are rated at 3.6volt, others 3.7volt. Does this make a difference? I do realize that they will be charged to roughly 4.2 volts.
Can the EC01 reach it's max performance with the 10Amp 50E, or is 10A not enough? I ask as it has the highest capacity of the four.
If the 50E is not sufficient, then the Xtar appears to have the best specs of the remaining three. Would the Xtar be the best choice for both brightness and capacity?
Or, would you suggest the Sammy 40T? (or 30T....although the 30T is more expensive than the 40T for some reason)

Lastly, would an IMR battery have any advantages over INR? I think I Saw a Liitokala IMR that was up around 4000mAh and 40A. My understanding is that INR is a Samsung designation for their hybrid battery, whereas IMR is an older non-hybrid type, and that the hybrids (INR) can have higher capacity than IMR. Is there anything at all that an IMR might have that is beneficial?


TIA
 
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