So what is the best battery for a high current draw (lets just say 10A) that maintains good high voltage under load? 26650 size (or 18650 if it beats the 26650). Runtime (capacity) is not important. 3.7v (4.2v charged) cells only and it doesn't have to be protected. Is the Efest IMR 26650 any good? Would a Panasonic NCR18650PD perform better? I also want something "budget", so I don't want something costing a fortune.
I’m should receive my Pana PDs soon. I was hoping to get a little more current out of them compared to my Sanyo ZTs.
If they perform well, they might be a good budget option for higher current lights, and still have some capacity.
I have heard good things about the newer Samsung high-drain cells too, but no first-hand experience. They are 4.35V as well, IIRC.
Keep an eye out for Milwaukee v-series battery packs in your local HD’s clearance area. They have been discontinued and are no longer carried. The M-series has replaced it. I just scored 3 V18’s with a charger for $40. Each pack has 5 Moli 26700 IMR’s. 3000mAh each. I don’t have measuring equipment, but I have some single cell xml2 lights like the hd2010. The lights are brighter then with unprotected King Kongs. That seems like an indicator of less sag.
EDIT: Oh, I did measure current at the tail of a couple lights. It was higher in each, but I didn’t bother recording or calculating how much an increase it was. Seemed like less than 10%.
Yeah FT. You mean the C-shaped dent in the photos on their listing?
I think that is a stamp impression where the cell roll is internally welded to the case. It may be a manufacturing defect, making these seconds, but if it didn’t puncture or severely weaken the case, they should be good to go.
It's for single cell multi-emitter use. I might be getting a light in for review with which I would like to test with a high quality cell (just in case it significantly helps for output). Besides, I'd like to have some good cells anyway :) . I'm thinking to get some Panasonic NCR18650PD's.
Well I am looking at the ability of the 26650's to hold higher voltage.
And interestingly enough I see the two types of 26650's I already own (TF Flame 26650 & King Kong INR) also hold higher voltage than the Panasonic PD's. I was guessing the PD's might at least beat the TF Flames (well, they are better than "Fake" flames I'm sure).
I didn’t even notice that image on the FT website. When I first got them, I took one out of the package and threw it in a new light. I thought the brass spring sleeve had screwed up my new cell. I had the whole ail assembly taken apart before I realized the other three cells were the same.
I have some more coming from DoingOutdoor. I’m curious to see if they are the same.