Efest 3100 Mah 20A... HELP!!
- Thread starter GregEvans
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Hello @GregEvans. Welcome to ECF!
I have a feeling the rumorus are very true they are NOT hi-drain batterys. The MAX watts you could use those at is 12 or safely at 6 watts.
You'll need at least a 20amp battery for 50 watts.
Samsung 25r is a good battery for what you need.
I have a feeling the rumorus are very true they are NOT hi-drain batterys. The MAX watts you could use those at is 12 or safely at 6 watts.
You'll need at least a 20amp battery for 50 watts.
Samsung 25r is a good battery for what you need.
All of the purple Efest batteries have over-rated, misleading specifications ... based on independent bench tests from multiple testers. Efest does not manufacturer their own cells, but purchases them from manufacturers who do and re-brands them as Efest.
You need a true 20 amp battery or higher for 50 watts. Battery Basics for Mods
"This cell is advertised as 20A. However it is based on a Panasonic NCR18650BE which is rated anywhere between 4A and 6.4A max continuous discharge. Performance test results put it on a level between a Panasonic NCR128650B (6.5A) and Panasonic NCR18650PF (10A) and is doing fine there." --DampfAkkus
Purple Efest Batteries: Not As Advertised
18650 Safety Grades -- Picking a Safe Battery to Vape With
Warning on Efest 35 and 20 amp cells
Any experience with the 3100 mAh purple Efests?
Purple Efest Batteries: Not As Advertised
18650 Safety Grades -- Picking a Safe Battery to Vape With
Warning on Efest 35 and 20 amp cells
Any experience with the 3100 mAh purple Efests?
You need a true 20 amp battery or higher for 50 watts. Battery Basics for Mods
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Hi Greg,
I don't own those, so I haven't done any homework on them, but I have seen discussions here and on Reddit that support the argument that these are NOT 20 amp batteries. The test results on Reddit HERE seem to indicate to me that it's closer to a 5 amp cell.
I don't own those, so I haven't done any homework on them, but I have seen discussions here and on Reddit that support the argument that these are NOT 20 amp batteries. The test results on Reddit HERE seem to indicate to me that it's closer to a 5 amp cell.
These companies can be sued. Now its not because of user error if another one blew up, it would be because of false adverts! This is dangerous.
I have been reading about all this rumors on efest. But before that i kept hearing and reading about efest doing some 35A 2500mah battery. I was sceptical at first because tbh i read a post somewhere here and i googled the facts too and read about how batteries works. If i am mistaken please correct. IMR batteries were made to support high amperage output at a continuous discharge rate. Higher if pulsed. Reason it can do so, if i remember corectly because the resistance is lower and because of that that is why it could not reatain much mAh. Hence IMR's i know of go about 1600mah-2000mah and can spit out a good 35-40A kicker. So when i heard all this efest stuff being 3100mah and can bazooka a nice 35A, damn... That is awesome! But then i am also sceptical. Wanted to post something about this but someone beat me to it.
Good topic this is...
Know the truth we must...
Test of Efest IMR18650 3100mAh (Purple) 2014
This testing puts it at an ok 10 amp CDR cell. I have one which I use in my ST Mini and it gives mediocre peformance. Realisticaly you wouldn't want to go below 0.6 ohms. For your setup OP, just no. Buy some Samsung 25Rs.
This testing puts it at an ok 10 amp CDR cell. I have one which I use in my ST Mini and it gives mediocre peformance. Realisticaly you wouldn't want to go below 0.6 ohms. For your setup OP, just no. Buy some Samsung 25Rs.
Efest is a company of scam artists. I won't even buy a battery case from them.
Try these
Sony 18650 VTC4 Battery Genuine & Tested - Flat Top-Wholesale Pricing – Liion Wholesale Batteries
Or these
Samsung 25R INR18650-25R Battery Genuine & Tested - Wholesale Pricing – Liion Wholesale Batteries
Try these
Sony 18650 VTC4 Battery Genuine & Tested - Flat Top-Wholesale Pricing – Liion Wholesale Batteries
Or these
Samsung 25R INR18650-25R Battery Genuine & Tested - Wholesale Pricing – Liion Wholesale Batteries
Since we are on this topic and i am mildly getting chills...
I am runnin on 2 x aspire 18650 2500mah 20A/40A on a rig of 0.21ohms at 45w 3.07v
If my calculations are correct, i am running about 14-15A so i am safe as i have dual 20A batts?
Since we are on this topic and i am mildly getting chills...
I am runnin on 2 x aspire 18650 2500mah 20A/40A on a rig of 0.21ohms at 45w 3.07v
If my calculations are correct, i am running about 14-15A so i am safe as i have dual 20A batts?
What mod is it your running, regulated or mech?
Yes, this is dangerous. But go right ahead and try to sue a Chinese company. China does not recogize lawsuits based outside of their own county. And there is no international agency which regulates the battery industry that I am aware of. So good luck with that.
Regulated hihi.. IPV4S... I am fine right???? Right!!!!
If they are 20 amp CDR you should be good up to about 100 watts.
Really you need to run 30 amp CDR batterys in the ivp4s.
It is worth checking your battery specs though.
At worse, because your mod is regulated, the mod will shut down safely or only provide what current the battery can give safely to the atomizer regardless of whatever setting you set.
I agree with optic ruby, with that mod you should be using a 30 amp CDR battery for optimal performance.
- Sony VTC4 2100 mah 30 amp CDR
- LG 18650HB6 1500mah 30A CDR
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There is no 40 amp 18650 battery currently in production. The highest in production are 30 amps CDR (the two above).
Some disreputable companies advertise the "pulse" discharge rate, which is deceiving to consumers and literally meaningless, to make their batteries appear superior to their competition. As vapers, we pay no attention to the pulse rating, only the continuous discharge rating.
Reputable companies like AW, LG, Panasonic, Samsung, and Sony publish genuine continuous discharge ratings.
Continuous Discharge Ratings vs Pulse (Burst) Discharge Ratings, Why You Need to Know the Difference
The "continuous discharge rating" in amps is the standard specification for amp limits within the battery industry. It is a determination made by the manufacturer and represents the amp limit a battery can be safely used before it will fail.
The "pulse or burst" discharge rating is not a specification standard within the battery industry. Every manufacturer or vendor seems to have their own definition of what the pulse rating is.
A pulse discharge rating is any use above the continuous discharge rating. It is never safe and not within the intended operating parameters of the battery. You should not operate your device above the continuous rating if you can help it. The pulse rating is a condition in which the battery is on basically a buildup to failure. It is exceeding the sustainable and intended discharge rate of the battery. It is inappropriate for a consumer device to operate in the pulse range of its battery.
Which would be why we shouldn't rely on any pulse rating. Any failure, mechanical or electronic, that fires the mod will operate in the 'continuous' mode. If your setup relies on a pulse rating, it's instantly over spec.
If your amp draw is safely in the continuous discharge range, your coil could act almost like a fuse and burn out before the battery is stressed. If you are already running the battery at the edge of it's limits (pulse), there is no margin of safety.
I am of the mindset that you should leave a margin of safety when deciding what resistance coil to use. We probably place too much faith into cheap ohm readers in being precise and accurate. Also, a RDA's post screw unknowingly coming loose can greatly change the coil's resistance.
Everyone is free to set their own parameters, and I can only say what mine are.
I try to never exceed 50% of the CDR (continuous discharge rating) of a fully charged battery (4.2v). So with a 20A batteries, that would be 10A. An Ohm's Law Calculator tells me that a .4 ohm build is as low as I would want to use.
The reason that I place a 50% limit is because as a battery ages the mAh of the battery degrades, as the mAh degrades so does the batteries c rating (amp limit). So down the road, your 20A battery may only be a 10A battery.
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Yep, like the others have said no 40 amp cells on the market. If there were we would all be using them.
Noted..!
End of month shopping list :
2x 18650 CDR 30A Batteries
Goliath V2 / Velocity
24g Ti
More cotton
New mini torch
The velocity is one of my fave rda's. If you get a clone go for the tobecco its near perfect
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