Need more batteries

[Commie]

So my old EH 18650ies are barely holding charge now, and I'm looking for new 18650ies for my Grand.

Besides the obvious choice of AW 2000MAh, what else would fit into a Grand? It still has the spring, no fuses for me. I haven't needed more than 10 amp output either yet, so possibly can get something with longer life than 2000mah?

Thanks!
Commie

 

[Justice]

The 1600's believe it or not give a better discharge rate than the 2000's get them you won't be let down mine are pushing 3 years old and are still perfect I rarely let them drop too low tho

 

[nerak]

So my old EH 18650ies are barely holding charge now, and I'm looking for new 18650ies for my Grand.

Besides the obvious choice of AW 2000MAh, what else would fit into a Grand? It still has the spring, no fuses for me. I haven't needed more than 10 amp output either yet, so possibly can get something with longer life than 2000mah?

Thanks!
Commie

One problem with going to a longer life battery is the length. It should not be long enough to compress the spring.

For me the recommended AW IMR 1600 mAh is the way to go. I have had some of mine for close to 3 years. Still working great.

 

[jazdale]

I've been through every type, including trustfires and panasonics.
I triple approve the above for imr 1600's

 

[johni]

If you pull your battery at 3.6 volts or so, the 1600s actually run longer than the 2000s.

 

[bushmaster]

I'm still running my first round of AW IMR 1600's after 3 years or more and who knows how many hundreds of cycles. I have yet to retire one. When that time finally comes, I'll be ordering the same batteries.

 

[Commie]

Thank you folks! AW's it is then.

 

[tmel]

Just gonna leave this here...

Sony 18650 30A Continuous Discharge Battery

 

[bushmaster]

Just gonna leave this here...

Sony 18650 30A Continuous Discharge Battery

Like so many of the new high-falutin high-drain batteries that are hitting the market--it's a frickin flat-top!
I've fell into this trap twice now. Bought them without thinking. They're fine on my Woodvil but for every day use.....frickin flat-tops.

 

[ancient puffer]

Those Sony's are flat tops. The REOs were designed around nipple top batteries. mAH ratings can be misleading, what's important, is how long they last from 4.2(ish) down to around 3.7v. In that scenario, the AW IMR 1600's out last (slightly) the AW IMR 2000's. Has anyone tested the Sony's to compare how long they last in the "usable" range for vaping?

 

[supertrunker]

i run Orbtronics - they are nipple tops. For daily easy stuff the pd2900s but for stupidity i have some sx30s that are not on this chart.

High-Drain 18650 Shootout

They are good batteries.
So are all the ones in the test.

T

 

[Funk Dracula]

The internal resistance of batteries will go up over time, affecting performance (voltage drop). It's not something you'd really notice until you popped a brand new battery on to directly compare.

I'd replace batteries for a mech at least once a year anyways, and "hand me down" the older 1600's to a regulated device or flashlight duty. (you can never have too many 18650's laying around for a flashlight)

 

[Joshinthecity]

If you pull your battery at 3.6 volts or so, the 1600s actually run longer than the 2000s.

Can anyone explain this further.
It seems counterintuitive to me...
more, is more, right ?

no?

 

[ltrainer]

Below graphs from Battery test-review 18650 comparator

2 amp draw:

5 amp draw:

10 amp draw:

 

[ltrainer]

Below graphs from Battery test-review 18650 comparator

2 amp draw:

5 amp draw:

10 amp draw:

As the amps go up the 1600 battery out performs the 2000 by ever increasing times. I don't know why. Perhaps internal resistance is less so more available power?

In a regulated mod the 2000 last longer but we are talking mechanical here.

 

[bsidb]

I bought sx30's ,bit of an over kill, 30amp,2100mah, button top,imr hybrid, my coils are @ 1 ohm for now

 

[Filthy-Beast]

I notice in all of these tests even though it's rated mah is lower the AW IMR 1600 holds a higher voltage, longer, in the usable range for mechanicals 3.7 to 4.2 volts for amp loads above 2.5 ish

I'd like to see a comparison test with a 3.5 to 4 amp load putting the 1600 against the newer batteries like the Sony.

 

[buckethead]

I too need some more batts. I only have 2 AW's and 2 Reos. While one AW is being used the other is charging, so I don't get to use one of my Reos often. I thought about picking up a couple of the flat top Sony's since I like to sub ohm on my other mech mods every now and then for fun, but I haven't had the greatest luck with flat tops in my Reos and I'd like the batts to be universal.

Rob did say though that with the new sub ohm kits that flat tops shouldn't be an issue. What's a poor reo head to do?

 

[BabyCrusher]

Flat tops aren't an issue on my Reo... are they supposed to be?

 

[Filthy-Beast]

Can anyone explain this further.
It seems counterintuitive to me...
more, is more, right ?

no?

The published mah rating is measured for the entire useful voltage range of the battery. starting at 4.2 and dropping all the way down 2.5v. So in a low voltage application like a flashlite, the mah ratting is more accurate and does matter since you can use the battery all way down to it's min allowed voltage of 2.5v.

However for mechanical vapping we really start to notice a drop off after 3.7 volts so our minimum voltage is really 3.7. When you look at those charts you'll see that for amps loads above 2amps the 1600 can hold 3.7 volts longer than the other batteries. If you re-calculated mah for a minimum for 3.7volts the 1600 would actually have a higher mah than the others.

Also for regulated devices remember they cut out at about 3.1 or 3.2 volts. so any life left in a battery for voltages less than 3.1 is useless on those devices.