Category: Battery Mooch

Though Efest has overrated this cell a bit it is a good performer, beating the 10A Samsung 48G and 15A Sanyo NCR20700B for total vaping time at low power levels, under 7A/20W. It appears to be a rewrap of the LG M50 cell.

The two cells I tested delivered 4900mAh and 4957mAh at 1.0A (0.2C) down to 2.5V. Neither cell met its 5000mAh rating. Every cell should easily beat the capacity spec as it’s just a minimum guaranteed value. It should not be the maximum you can expect if you’re lucky.

LG rates the M50 at 4849mAh minimum to 5014mAh typical though so this Efest still meets LG’s specs.

I am estimating this Efest’s ratings to be 7.3A and 4900mAh. 

Two cells were donated for the purposes of testing by Brad’s Vapor (https://www.bradsvapor.com). Thank you!

Ratings graphic: https://imgur.com/a/7vfDjU6

Test report: https://bit.ly/2uHWbWi

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

This one made me angry. Aspire has a good reputation so my expectations were high. But for this cell they decided to roll us back a couple years and use a hugely exaggerated current rating without mentioning it is some sort of “pulse” rating. 

The wrap on this cell just says “35A”. We can only assume, since there is no (useless) “max” or pulse” designation, that it means this cell is rated to 35A even for a continuous discharge. Except that during a continuous discharge at that level the cell gets hot enough to boil water and one cell failed during its first discharge at 35A.

Some other concerns…

A paper insert included with the cell seems to indicate that they are claiming this cell has a continuous rating of 20A. A “Vaping Simulation” rating of 30A is also given by them on the insert. Where does the 35A rating on the wrap come from then?

What happens if this paper insert is lost or cells are taken out of their boxes for display in a shop? There would be no indication as to how exaggerated the 35A number on the wrap was.

The discharge graph for this cell on Aspire’s web site, now deleted but included below, showed temperatures about 20°C lower than I measured, a huge difference. I am unable to explain this. The temperatures on Aspire’s discharge graph don’t match those on their paper insert either.

The four cells I tested delivered 2944mAh, 2964mAh, 2989mAh, and 3077mAh at 0.6A (0.2C) down to 2.5V. Only one of the four met its 3000mAh rating. One other came close though. But every cell should easily beat the capacity spec as it’s just a minimum guaranteed value. It should not be the maximum you can expect.

These cells performed a bit worse than LG HG2’s but it’s probably not noticeable in a regulated mod. The shorter run time of this Aspire versus a 30Q or VTC6 might be noticeable though.

I am estimating this Aspire’s ratings at 20A and 2900mAh. It appears to be a China manufactured cell, probably from Long Deli New Energy Company, Ltd., which Aspire has used before.

Immediately after testing I fired off an email to Aspire basically yelling at them for all the things mentioned above. We spent a lot of time talking and I agreed to include a statement from them in this test report. I’m happy to say that they are willing to take the unsold stock of this battery and rewrap them all with more accurate ratings.

Four cells were donated for the purposes of testing by Aspire (http://www.aspirecig.com). Thank you!

Aspire’s statement: https://imgur.com/a/U1Yp5J3

Ratings graphic: https://imgur.com/a/jeyl0fo

Test report: https://bit.ly/2O0TU0t

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

This is the VT4, not the VTC4. While both are similarly rated the VT4 didn’t perform as well.

The two cells I tested delivered 2130mAh and 2156mAh at 0.4A (0.2C) down to 2.5V. This cell’s rated capacity is 2000mAh and its nominal capacity rating is 2100mAh. I try to use the rated capacity as that is the guaranteed minimum but I think most of them will deliver 2100mAh (at low current levels).

The two cells ran a little hot at 22A in my testing for that to be their continuous rating. I am estimating this Sony’s ratings to be 20A and 2100mAh.

While these are not bad performing cells at all the VTC4 performs better at 10A and much better at 20A. Considering the high internal resistance I measured for the VT4’s they could be lower grade cells as Sony does not overrate.

Two cells were donated for the purposes of testing by 18650BatteryStore (http://www.18650batterystore). Thank you!

Ratings graphic: https://imgur.com/a/ooWbW3x

Test report: https://bit.ly/2moUgl7

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

A quick recap: It appears that Vapcell is now wrapping a lower current rated cell, estimated in the 20A-25A range.

What I am doing now: I have received four cells I ordered from Liion Wholesale and four more I ordered from Illumn are on the way. I have also received two from Eciggity (arranged by Vapcell) and four more are being sent by Economy Ecigs Distro, the ones who sent me the first set of lower rated cells.

No cells are being sent directly from Vapcell. No cell will be accepted without the clear outer heat shrink added when they were initially wrapped. I am confident that none of the cells I am testing have been “cherry picked” but, if true, it is easily confirmed by comparing their performance to the others. If any company ever tries crap like that there will be hell to pay.

I am making this retesting a priority.

I will be doing physical examinations and AC and DC internal resistance, capacity, and discharge testing of these fourteen cells to try to figure out what the hell is going on.

This is going to take a lot of work so my response time to the questions I get every day will get longer. Please, be patient.

As soon as I have more information I will post it.

Please do not send me pictures asking me what version of this cell you have. Compare your cells to the pictures I have posted. If you are not sure, assume they are rated 20A. 

Photos: https://imgur.com/a/GXjagS1

This and another recent incident, to be posted about soon, have pushed me far enough. I’m not happy about the abuse I am taking from every angle just because these companies are using exaggerated ratings, inconsistent performing cells (they often don’t even know about), switching cells, or using lower grade Samsung, Sony, etc., cells whenever they want.

New ratings methods for China manufactured cells are being created. If companies want to use these cells, fine. But the ratings will reflect the actual inconsistency of their performance. I imagine lots of people will be pissed off with the new ratings but this is the hand we have been dealt by these companies. More info about this in a week or two.

Dammit…

While this cell has a useless large 35A “max” current rating on the wrap it has an accurate continuous current rating. Its capacity rating is slightly exaggerated though.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating. I hope Golisi removes the max rating soon.

The four cells I tested delivered 2577mAh, 2580mAh, 2586mAh, and 2600mAh at 0.5A down to 2.5V. Only of the four met its 2600mAh rating and barely at that.

These cells performed pretty well. While the Sony VTC5A outperforms it for the first half of a 25A discharge this cell matches the VTC5A for the rest.

I am estimating this Golisi’s ratings at 25A and 2550mAh.

Golisi wanted our community to know that they have product liability insurance for their batteries. I don’t know the specifics of what benefits this offers to vapers or vendors. Contact Golisi for more information.

Four cells were donated for the purposes of testing by Golisi (http://www.golisi.com). Thank you!

Ratings graphic: https://imgur.com/a/BZnDVkl

Test report: https://bit.ly/2u5iCVk

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

While this cell has a useless large 40A “max” current rating on the wrap it has an accurate continuous current rating. Its capacity rating is slightly exaggerated though.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Golisi removes the max rating soon.

The two cells I tested delivered 3112mAh and 3181mAh at 0.5A down to 2.5V.

These cells performed well, essentially equal to the Vapcell gold 30A 3100mAh 20700 cell.

I am estimating this Golisi’s ratings at 30A and 3100mAh.

Golisi wanted our community to know that they have product liability insurance for their batteries. I don’t know the specifics of what benefits this offers to vapers or vendors. Contact Golisi for more information.

Two cells were donated for the purposes of testing by Golisi (http://www.golisi.com). Thank you!

Ratings graphic: https://imgur.com/a/KH4zyCW

Test report: https://bit.ly/2NAJrsn

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

While this cell has a useless large 40A “max” current rating on the wrap it has accurate continuous current and capacity ratings. In fact, the current rating is conservative compared to other wrappers of similar China-manufactured cells. This is great to see! It helps to improve safety, performance, and cell life.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Imren removes the max rating soon.

The two cells I tested delivered 3785mAh and 3919mAh at 0.5A down to 2.5V.

These cells performed well, essentially equal to the Golisi S35 and Efest purple 35A 3700mAh 21700’s.

I am estimating this Imren’s ratings at 25A and 3750mAh.

Two cells were donated for the purposes of testing by Liion Wholesale (http://www.liionwholesale.com). Thank you!

Ratings graphic: https://imgur.com/a/bDcO5KL

Test report: https://bit.ly/2KSEXvA

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

While this cell has a useless large 40A “max” current rating on the wrap it has accurate continuous current and capacity ratings.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Imren removes the max rating soon.

The two cells I tested delivered 3249mAh and 3337mAh at 0.5A down to 2.5V.

These cells performed well, slightly outperforming the five “leg” top contact cells wrapped by iJoy, Efest, EBAT, Ampking, and others.

I am estimating this Imren’s ratings at 25A and 3200mAh.

Two cells were donated for the purposes of testing by Liion Wholesale (http://www.liionwholesale.com). Thank you!

Ratings graphic: https://imgur.com/a/KI7say6

Test report: https://bit.ly/2u2HwUM

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

While this cell has a useless large 40A “max” current rating on the wrap it has an accurate 20A continuous current rating. Its capacity rating is a bit exaggerated though. It looks and performs identically to the LG HG2.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Imren removes the max rating soon.

The two cells I tested delivered 2929mAh and 2931mAh at 0.5A down to 2.5V. Since these appear to be LG HG2’s, which are rated at 3000mAh, it’s possible that they are lower grade cells. I can’t say for sure though.

I am estimating this Imren’s ratings at 20A and 2900mAh.

Two cells were donated for the purposes of testing by Liion Wholesale (http://www.liionwholesale.com). Thank you!

Ratings graphic: https://imgur.com/a/0psvgUm

Test report: https://bit.ly/2KHGaZR

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

While this cell has a useless large 35A “max” current rating on the wrap it has accurate 15A continuous current and 3000mAh capacity ratings. It looks and performs identically to the Samsung 30Q.

I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Imren removes the max rating soon.

The two cells I tested delivered 3072mAh and 3099mAh at 0.5A down to 2.5V.

I am estimating this Imren’s ratings at 15A and 3000mAh. While the Samsung 30Q has 20A operation mentioned in the datasheet that is not part of its formal ratings and I cannot prove this is a Samsung 30Q rewrap.

Two cells were donated for the purposes of testing by Liion Wholesale (http://www.liionwholesale.com). Thank you!

Ratings graphic: https://imgur.com/a/0OWJljN

Test report: https://bit.ly/2KoB3hO

I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch

These tests only note the estimated ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/