Li-ion vs LiMN 16340

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VaporMadness

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Jan 26, 2010
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I was at radio shack today to get some new batteries from my cordless phones, and while I was there I picked up a handful of 10 ohm resistors and some pre-wired alligator clips. Given this stuff I was able to measure how the two different AW 16340 batteries handle different loads.

Both batts were fully charged and reading 4.17v unloaded when I started, and reading just a little lower, 4.15v, by the time I was done. I put 3 different loads across each batt for a moment and measured the voltage while loaded. Here's what I got...

Li-ion (AW ICR-16340 750mAh, Protected, max discharge rate 1.5 amps)

3.3 ohm --> 3.85v (1.16 amps, 4.5 watts)
2.5 ohm --> 3.75v (1.50 amps, 5.6 watts)
2.0 ohm --> 3.68v (1.84 amps, 6.8 watts)

LiMN (AW IMR-16340 550mAh, High Drain, max discharge rate 4.5 amps)

3.3 ohm --> 3.85v (1.16 amps, 4.5 watts)
2.5 ohm --> 3.85v (1.54 amps, 5.9 watts)
2.0 ohm --> 3.80v (1.9 amps, 7.2 watts)
 

VaporMadness

Ultra Member
ECF Veteran
Jan 26, 2010
1,521
7
CA, USA
I actually used your results when trying to help explain to my FIL about using LR 1.5 attys on standard 510 batteries.

Glad you found it useful.

I've been curious about what happens when these things are "in action" for a while now. I'm not yet setup to measure the action when plugged in thru an ecig battery connector (i had the 16340 in a battery holder and tapped into it that way), but it would be curious to measure the results of std ecig batts with these loads too. The only std batts I have at the moment are some 40x batts. If I cannibalize a dead 401 atty, maybe I can put together a connector that I could attach probes to.

More practically, I wonder what happens with an 18650 or a 14760 while "in action" like this?
 
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