26650 for 18650?

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Deputydave
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Trustfire A8 arrived today. Initial impression is that I’m very impressed. Seems like a well made light. I’ll try it out tonight.

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Deputydave
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Tried it out in the backyard and it lit up the night. However I have discovered a serious flaw in my future operation of this light…my wife saw it and now wants it! :bigsmile:

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B42
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Well, if that means you are now ready for the next light…(flashoholic disease is very contagious) Wink The one you listed back there is probably the best zoomie cheapie that takes 26650/18650/3xAAA. But, its relatively big and heavy compared to what you bought (this will probably mean the wife wont confiscate it though). I like mine, and someone who I hike with liked mine so much they bought it off me and dont want to buy another light since. But, I do prefer more expensive lights myself of course…

If you do order it, be aware that ebay sellers may substitute a very similar looking one with a slightly reduced diameter tube that does not take 26650s (this happened to me). If so, just complain and most will refund/refund half/send you the light they should have in the first place and get both for that price.

Deputydave
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Now that I know that a 26650 can take the 18650 and 3xAAA, it will be the only thing I probably order from now on (other than a 14500/AA light). I like to have multiple options for a single light if possible, from an emergency preparedness point of view it just makes sense.

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Deputydave
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Well, as I mentioned a couple of months ago, my wife took my Trustfire A8 :_(

So I decided to order one for myself Smile

As I mentioned above, from a preparedness perspective I like a flashlight that offers multiple battery options. This is likely to become my primary ‘in the deep woods’ light. Up until now I’ve been using an XML T6 light that I purchased a couple of years ago on Ebay that uses 18650/3XAAA. It has been an exceptional light that has gone with me on many night hikes. But I think I may pass this to my son and use the A8. We are planning on another SEP gathering (deep woods camping trip with a local group) in the later part of November. I should have the A8 by then so that is when I will plan on field testing it.

As of right now I’ll use the 26650 as the primary battery with both an 18650 w/sleeve and a 3XAAA holder as my back up. I just ordered two more genuine Sanyo 18650’s (recommended here on BLF) to add to the two I’ve already obtained (they seem to be working very well). Later I’ll begin getting additional 26650 batteries.

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Nightbird95
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I bought a MarsFire “5000 mAh” Protected 26650 from DX in April last year and it turned out to be a very good battery. I checked its capacity recently with the Opus BT-C3100 and the results says 4152 mAh. Not bad after more than a year regular use. Its currently out of stock at DX but I do recommend it if ever you encounter a good deal.

However, my King Kongs are better (and cheaper). The four I bought from FT last year (also in April) has an average capacity reading of 4494 mAh. Smile

Deputydave
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Other than run time, is there a noticeable difference in performance from one type of battery to another? For example, the TF A8 that is on the way will be my primary ‘deep woods’ light. I’ll run the TF 26650 battery in it as a primary. But I’ll also have one or two 18650 batteries w/sleeve and one triple AAA holder as well in the pack.

Your thoughts?

Also, how far should a battery be run down generally? In the past I’ve normally let the battery (for whatever device) run down to below 10% before charging back up. So for a light, once I see it take a noticeable nose dive in performance is when I swap the batteries out. What is your experience/advice?

Thanks again. Smile

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Deputydave
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Received my new TF A8 flashlight in the mail yesterday Smile

There are many like it…but this one is MINE!

Mine, mine, mine, mine…hahahahaha….mine! :bigsmile:

Can’t wait to head out to the woods to give it a proper test. Curious to see how long it will run with the TF 26650’s?

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Richwouldnt
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Per Battery University Lithium Ions last best if recharged at 50% or so. Deep discharge stresses them more. I bought the Kindle edition of the Battery University authors book from Amazon and have been learning a lot from it though the web site is a lot less expensive. :bigsmile:

Rich Wood
Reno, NV

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