Hasn't turned into a pipe bomb YET. Not that it won't but haven't seen any indicators that there is a problem running these cells in the Vamo. Other than a safer chemistry, why does everyone only recommend the IMR's in the Vamo? I believe the Protected AW 18650s can easily and safely output 5.2 amps of draw and frankly at even the most stressful conditions with higher load (commercially available) coils, you wouldn't even come close to that kind of draw.
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Hasn't turned into a pipe bomb YET. Not that it won't but haven't seen any indicators that there is a problem running these cells in the Vamo. Other than a safer chemistry, why does everyone only recommend the IMR's in the Vamo? I believe the Protected AW 18650s can easily and safely output 5.2 amps of draw and frankly at even the most stressful conditions with higher load (commercially available) coils, you wouldn't even come close to that kind of draw.
Yes, I think a 7/30 cycle rate would be a good replica of normal vaping. Take your choice for a load, but I'd guess two or three amps would be most representative for most vapers.
Two stacked 18350 at 1020mA load and one 18650 at 3.36 load.
Cut-off at 3.3 or 3.2?
Cut-off at 3.3 or 3.2?
Cutoff at 3.3 volts should be good enough and protect the batteries a little more.
It would be very interesting to see how many amps are drawn in this range.
I never notice it with my 18650's (I rarely get below 3.6V), but around 3.5-3.6V is where 18350's (in short mode) start having trouble supplying enough power.
In stacked mode, I notice no drop off in output on 18350s. The Vamo just shuts down at 6.4 volts, zero output then LOL.
Li-Ion batteries continue to supply power up to 3.1V without problem. It's just the power supplies that can't work correctly below 3.3.
Testing a battery outside of the device shows the actual power output.
Normal cut off voltages are at 2.750V To get the full capacity of the battery.
Testing a battery outside of the device shows the actual power output.
Normal cut off voltages are at 2.750V To get the full capacity of the battery.
You're not alone. I too use protected batteries I purchased for flashlights. Orbtronic Protected 2900mAh 18650 Li-ion Battery - Cell Panasonic NCR18650 - Protection ICs- Made in Japan - Top Button. I saw a test somewhere that showed that the protection circuit didn't kick in until around 8 or 8.5A. Their newer, higher capacity versions are rated at 10-12A before protection. I think both are way above the Vamo's current rating.
Works fine, lasts a loooong time.
I use AW IMR 2000mAh in another mod and don't much care for the shorter life.
Cobalt or other cathode batteries like the orbtronic produce a LOT of heat when you draw at 1,5-2C (2C is the maximum safety by the manufacturer). That decreases battery life and capacity.
Just info.
Just info.
That would seem to pose the danger...more heat being generated than the venting system can handle leading to rupture of the battery wall. I think I'll stick to IMR.
Fenix and Orbtronic developed 60-66 celcius during 5A discharge tests. Have no idea how it will behave inside a mod.
24 hours later and still at 3.5v with only 3 hours sleep
21 hours of actual vaping time with some to go on a 2000mah battery seems spectacular
This was on the first initial full charge. Should I expect similar results always from this AW?
EDIT - it just rolled down to 3.4v - should I let it shut down @ 3.2v before recharging or is that hurting it.
I'm fairly amazed at this battery's performance and will get a pair of AW IMR 18350s for out/about.
Thanks for the 100% accurate AW IMR recommendation.
Wow. Once it gets down to 3.5v it really drains fast.
20 hours from 4.2-3.5, .5 hours from 3.5-3.2 > lo
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Yeah Mowgli, you should get at least a day outa that AW. It should improve a bit after around 10 charge cycles.
I'm getting a day and a half outa my Panasonics. You don't need to let it go all the way down. It's really better on the battery if you don't
I'm getting a day and a half outa my Panasonics. You don't need to let it go all the way down. It's really better on the battery if you don't
IMO the only reason to stack would be if you're running 11-15W.
That's why I only use 18350s for short mode.
My 18650s last more than a day with no noticeable decrease in power for long mode.
I'll try to remember to recharge it @ 3.5 or so then...
It took about 6.5 hours to recharge from 3.2 to full. That sound about right?
I have a pair of AW IMR 18350s on the way for shorty duty. I'm psyched.
It took about 6.5 hours to recharge from 3.2 to full. That sound about right?
I have a pair of AW IMR 18350s on the way for shorty duty. I'm psyched.
One reason to stack, other than higher power levels, is that it takes the load off the boost circuit, sparing the electronics inside the Vamo...less heat there. Maybe not real important, but it may extend the life of the electronics. Then again, it could shorten that life because of the higher voltage. I use the stack because it lets me use the same tube configuration without bothering to switch tubes around and the longer tube fits my hands better than the short tube, plus it vapes as long as a high capacity 18650.
Being the cynic that I am, I'll wait until it's actually tested and the "secret" is out about what chemistry it's using to achieve that 5000mah.
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