21700 Battery holder or new charger

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ecotack
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21700 Battery holder or new charger

The 21700 won’t fit in my Lii-260. They do fit in my Lii-100, but I’d like check the capacity and resistance of new batteries.

Is there a 21700 battery holder around, so I could use my programmable charger?
Or, what’s the cheapest charger that will fit a 21700 and give capacity and resistance?

I was thinking about the Xtar VC2S, but one review said the 21700 won’t fit.

zeroair
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In case that reviewer was me (and it was, and I’m editing the post now):

The VC2S does in fact fit 21700 cells just fine. Unprotected flat tops only (are there even any protected or button tops?)

Anyway, VC2S fits 21700!!

RWS34
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Sure would be nice if there was a 21700 forum to have all the related discussion in 1 spot. Strange thing to observe, there’s 2 “AA” forums, there’s 2 “AAA” forums, there’s zero 21700 forums. Seems a bit odd to me. Actually…seems more than a bit odd to me.

Enderman
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Terry Oregon
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Haven't seen a 21700 battery holder with terminals, but . . .  (just saw the link above)

 

The 21700 fits three of my chargers (1) Xtar Dragon VP4 plus (2) SkyRC MC3000 (3) AccuPower IQ338XL

 

The two 21700's I own are the Samsung 40T and 48G. These two in particular may require spacers for the + terminal, because the + terminal sits just below the top of the battery housing, which may not mate properly with the chargers terminals.  I just use a bent paper clip.

 

All three above do capacity tests, as well as resistance.  The Xtar in particular comes with a set of dedicated probes for measuring internal resistance.

 

Sorry, these aren't the cheapest chargers.

 

 

My reviews: , J5 Tactical V1 Pro LINK and Thirteen Optical Sensors LINK and a short review Zebralight SC700d LINK

My Collection (photo) LINK

ecotack
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Enderman wrote:
https://www.ebay.com/itm/IM1X20700-MosMax-single-20700-21700-battery-inj...

Nice find, but at $19.67 shipping I’d be better off stripping down a Lii-100. I’ve got a cheap looking Warsun single cell charger that I don’t use, the 21700 fits, so I may do that.

Back to the chargers, I thing I’ll try the Xtar VC2S. I did think about the Xtar VC4, but don’t think these measure the battery resistance.

Petr J.
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hiuintahs
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I just ordered a Miboxer C4 Upgrade in order to charge the 21700 in my new Sofirn C8F. The other choice for me from Miboxer was the C2-4000, but I opted for the C4 Upgrade. Hoping that it will work well.

justanotherguy
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nice mod Petr J

(Czech?!)

tundraotto
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Nitecore ums2 will do 2 (even long protected 21700 batteries) at 2amps each or 1at 3amps. $29 at amazon. Or with coupon from China around $20.

Petr J.
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justanotherguy wrote:
nice mod Petr J

(Czech?!)


Yes Smile