Batteries
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It depends on what your coil resistances are (if using a mechanical mod) or what power levels you vape at (if using a regulated mod). As mentioned above, the VTC5 has been labeled a 30A battery by many people but it's really only 20A. Not sure then if you need a replacement battery that can handle 20A or 30A.
You've gotten some great recommendations. Mine are...
Up to 20A = LG HG2
Around 20A = Samsung 25R
Over 20A, up to 30A = Sony VTC4
30A and higher = LG HB6
I assure you, the information that is there is factual. I have been testing cells for over 20 years and Efest is one of the worst offenders when it comes to exaggerated ratings claims. Did you scroll down that link? That blog does show testing, for almost 40 batteries, including two Efests.
Efest 38A 2100mAh 18650 Bench Test Results...an ok 20A cell, no higher | E-Cigarette Forum
Efest 35A 2800mAh 18650 Bench Test Results...a 20A/2300mAh battery | E-Cigarette Forum
The 38A/2100mAh cell is really only 20A. At 30A its temperature had risen to almost 100°C, an extraordinarily high temperature and clear evidence that the rating is not 38A. In addition, at only 30A, the voltage quickly drops to less than 3.1V, rendering it essentially useless at 30A.
The 35A/2800mAh is also really just a 20A cell. At 25A its temperature was near 100°C. At 25A its voltage quickly dropped below 3.2V, also rendering it essentially useless for vaping.
Check the discharge tests of any battery reviewer on the Web and you will find similar results. I don't think you will find an Efest cell that lived up to it ratings.
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The very first IMR battery I bought was an 18650 2500 35 amp Purple Efest. This was before I joined ECF and was completely uneducated about batteries. I can clearly remember my thought process: I liked the wrapper/branding, it said 35 amps which was a higher number than the others I was looking at, and it was slightly more expensive (surely a sign of quality).
I had to splode that battery....
Efest's name is dirt amongst the informed, after repeatedly and consistently misleading buyers with their labeling. Fact.
A bit of light googling will reveal that Mooch isn't the only independent tester of batteries, he is however part of the ECF family who's testing I trust implicitly.
Call me old fashioned, but when someone puts in hard unpaid graft to help me to not get injured, that makes them a bit of a hero in my books. Thanks Mooch
I had to splode that battery....
Efest's name is dirt amongst the informed, after repeatedly and consistently misleading buyers with their labeling. Fact.
A bit of light googling will reveal that Mooch isn't the only independent tester of batteries, he is however part of the ECF family who's testing I trust implicitly.
Call me old fashioned, but when someone puts in hard unpaid graft to help me to not get injured, that makes them a bit of a hero in my books. Thanks Mooch
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Watch out on those Efest Purples, they are re-wraps of other name brands like the Samsung 25R and LG HE2/HE4, not 35 or 38amp like they are labelled, they are 20amp, Mooch has on his blog several batteries tested and both Purple Efests proved to be 20amp max CDR, the labelling is their pulse burst rating, not the CDR.
Purple Efest Batteries: Not As Advertised
I haz a sad. You can lead a horse to water, but you can't make him drink it.
Efest and roughly half of the manufactuer/suppliers in the battery industry can be considered disreputable. It's a dog eat dog industry and extremely competitive for a niche of the market.
Half resort to false advertizing claims of unrealistic battery specifications to gain an edge on paper over their more honest competition. The vast majority of those don't even make their own cells, but merely relabel the batteries they buy from LG, Sony, Panasonic,or Samsung. And those are second or third tier cells because the original makers are selling their first tier under their own name.
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You're welcome, my pleasure.
For regulated mods you want an unprotected, flat-top battery with a current rating high enough for the wattage you will be using. The HG2 will last the longest in your IPV D2. Some other batteries will run at a lower temperature than the HG2 but I don't know if you would consider that as being the best.
Just don't go over 60W because the HG2 is only a 20A battery. If you want to go to 75W you will need a higher-current battery like the 30A Sony VTC4.All five of those high-capacity batteries you listed are rated at 10A or less. A regulated mod draws current, worst case, equal to the max wattage divided by the lowest battery voltage it can operate at, usually 3.2V or higher. For your IPV D2 that equals 75W / 3.2V = 23.4A max. It would be a very bad idea to use a 10A battery at that current level.
But what if you stick to 35W and under? Would those batteries be OK? Let's find out....35W / 3.2V = 10.9A. Nope. :-(
If you never exceeded that 18W figure you mentioned then some of the batteries on that list could work. But, at 10A the HG2 outperformed all those batteries, even though the HG2 is only rated at 3000mAh. If you wanted to fry some neurons, here's my post with the results of a test with most of those batteries and the HG2.
High Capacity Battery Shootout at 10A -- Bench Test Results...surprising winners! | E-Cigarette Forum
The results show that a higher current rated battery, with lower capacity, can still beat a higher capacity battery. I just can't think of a better battery for the wattages you'll be vaping at than the HG2.
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Mooch, just read your newest thread, including the test result doc. attached.
All I wanted to say is thank you for the time spent performing the tests. Hopefully many many folks will heed these important warnings and vital information.
People generally recommend samsung 25rs, lg he2/he3, and there is a panasonic or 2 also. Most of them are 20amp though. illumn.com have been getting the sony vtc 3 back in stock regularly though. I guess sony moved manufacturing plants around...
To risk stating the obvious check continuous amp load - ignore 'pulse' and other dubious stats and stick with sony/samsung/lg/panasonic. Anything with fire or fest in the name is just a rewrap of someone elses they didn't feel selling as their own
To risk stating the obvious check continuous amp load - ignore 'pulse' and other dubious stats and stick with sony/samsung/lg/panasonic. Anything with fire or fest in the name is just a rewrap of someone elses they didn't feel selling as their own
Samsung 25R, LG HE2 and HE4 when it comes down to 20amp CDR, with the Samsung 25R being a popular strong runner.
Sony VTC3 and VTC4, as well as the LG HB6 are your 30amp CDR choices at the moment
MXJO
Imren
Efest Purple
and several others are out there with Amp Specs of 35 on up to 40amp printed on the battery wrapper, sadly these are most times as stated above re-wrap of another 20amp CDR battery already listed
RTDVapor
Illumn.com
Orbtronics
These will be your best places to look for authentic batteries.
Sony VTC3 and VTC4, as well as the LG HB6 are your 30amp CDR choices at the moment
MXJO
Imren
Efest Purple
and several others are out there with Amp Specs of 35 on up to 40amp printed on the battery wrapper, sadly these are most times as stated above re-wrap of another 20amp CDR battery already listed
RTDVapor
Illumn.com
Orbtronics
These will be your best places to look for authentic batteries.
Just remember and be careful, that 35amp label is a Pulse Discharge Rating, not a Sustainable Continuous Discharge Rating, which the CDR on those are 20amp CDR.
Several people here and on other forums test, extensively claims of what a battery is capable of.
Examples of such testing from @Mooch 's blogs here ->
Mooch's blog | E-Cigarette Forum
Efest has one of the worst reputations in the industry. Why would they overrate a battery? Simple, it sells more batteries. If pressed on this issue they can just say, "Oh, that's the pulse rating", which is a useless spec and allows them to print anything on the label they want.
They don't rewrap terrible batteries from what I can see. But, they must be thinking that putting the continuous current rating on the label wouldn't sell batteries. Not when the equivalent one, from the companies that actually make the battery; Panasonic, Sony, LG, and Samsung, can be bought at a lower price,
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eFest does not make batteries .... they rewrap batteries.
eFest has ALWAYS over rated their batteries. They have ALWAYS been the biggest offender!
The trick with eFest batteries is to identify what cell is actually under their wrappers. You will fine that in many cases they are just using "B Bin" cells of quality batteries.
ie: Samsung or LG and the like.
At those power levels, and up to about 60W, you can use the 3000mAh LG HG2 battery. I don't know how long it will last you before needing charging but it's the highest capacity (mAh) battery you can get to use at 18W-35W.
There is no such thing as a 35a 18650 battery! But there are more than enough vendors/suppliers that would like you to believe that there are.
They could print their wrappers to say that they're 100 amp batteries, but the cell would still be whatever is under their wrapper.
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You might find it interesting that Sony does not state the CDR of their batteries. Instead they state that the specifications of VTC cells are those specified by the company that they are being produced for.
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Thanks a bunch @Mooch!
You've convinced me that the HG2 is the way to go. Any websites you can recommend that ships internationally? I tried a couple mentioned in this thread such a IMR and Battery Bro and neither of them ship outside USA. I saw FT does though. Reliable enough?
You've convinced me that the HG2 is the way to go. Any websites you can recommend that ships internationally? I tried a couple mentioned in this thread such a IMR and Battery Bro and neither of them ship outside USA. I saw FT does though. Reliable enough?
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