How do these compare to the Panasonic PDs in any sane 
single-cell light (i.e. Nanjg 105c @ ~4A)?
Or more specifically, how many amps do you need to be drawing before you see a gain with the low resistance cells? I know that they allow for much higher peak draw (10-20 amps) but does the low resistance also come into play at 3, 4, or 5 amps?
Thanks!
Yes - better than Pana PD's for high amp XM-L2/XP-G2 on copper lights and 4A is pretty high. Don't have #'s with me, but don't think you will get 4A on Pana PD's, where you will with Samsung 20R, 20Q, or SONY 30A's. How long you maintain it is another issue - thinking these LG D1's may be better for that.
I just got a pair of KingKong ICR 26650 from FT, and they are identical in every way to the ones I got from IOS.
Oh that's good - Garry got INR's instead then they gave him a hard time about it. I've been getting slightly better results with the 4200's from CNQ/FFL, but they are close, and HKJ has said the KK's vary a bit from cell to cell.
Awesome to see these available through Fasttech! That’s a really good price and definitely significantly cheaper than what I paid for the ones I should be getting today:
_2013/09/03 05:14 CALGARY Item processed at local delivery facility
2013/09/01 18:47 CALGARY Item processed at postal facility
2013/08/30 07:45 WINNIPEG Item in transit 04:52 WINNIPEG Item processed at postal facility
2013/08/23 14:32 SGSINJ, Singapore International item has left originating country and is en route to Canada_
Tom, I totally agree with your suggestions as well for additional batteries. I would love to see the whole line of Keeppower’s available but I am really interested in the 26650’s.
I also would love to see one of these companies take a cell like the 20R’s or 20Q’s and make a protected cell out of them but with a really high kick in point so you could actually use them properly and still have the protection.
Yep, and the KK 4200 from CNQG is taking FOREVER to get here! (SG Post) My replacement KK ICR's from FastTech (RMA'd) have already shipped and will likely get to me before the CNQG order will!
-Garry
That is great news! I ordered from ebay not long ago but would prefer to buy from fasttech!
I’m very tempted by the KK’s, but 3-4 of them in series makes me stop…and still feeling tempted.
Off-Topic, but I just in fact received my KK 4200 from CNQG. Tracking never updated until this afternoon as it was out for delivery. Checks @ 3.83v.
-Garry
Why do they have the 4200 cheaper than the 4000?
Ok - cool! Got an order from IOS where I suspect the same thing - shipped 8/22 with an HK suffix on tracking, but no status at USPS.
What’s an “INR” battery?
Per my support ticket response to FastTech:
INR and ICR are two different types of Lithium Ion chemistry. Take a look at the following link: http://flashlightwiki.com/Rechargeable . ICR is "LiCoO2" Lithium Cobalt. INR is "LiNiCoMn" Lithium Manganese Nickel (note this chemistry is also listed as "LiNiMnCoO2" and also called "NMC"). Another webpage showing the differences in chemistry is here: http://batteryuniversity.com/learn/article/lithium_based_batteries (see the chart in the middle of the page).INR are generally safer, while ICR generally have higher output (which doesn't make much sense with the Samsung INR being such a top dog).
-Garry
Thanks Garry.
?
That’s 2600mAh,not 3700.
Quote not working…
thanks for the heads up tom. gonna order me a triple right now.
Ooops, Yes! 2600 mAh, reviewed here: https://budgetlightforum.com/t/-/20653. Forgot these were so low capacity for a 26650... Hhhmmm, maybe not worth the very slight advantage over a KK 4200, but they can be had for less $$$ -you provided a link for a great price on them: http://www.aliexpress.com/item/Free-Shipping-Li-ion-26650-3-7V-2600mAh-Rechargeable-Battery-Cell-with-High-Discharging-Rate-4pieces/1234774978.html on that HKJ review thread. Thanks!