LG 18650 Cells

[Kemosabe]

is this cell:

Specifications:
Manufacturer: LG
Model: LE DGHR 2185
Maximum Continuous Charging Current: 4A
Maximum Continuous Discharging Current: 20A
Maximum Pulse Discharging Current: 35A
Rated Capacity: 2500mAh
Nominal Voltage: 3.7V
Maximum Charged Voltage: 4.25V
Minimum Discharge Voltage: 2.5V

LG IMR 18650, 35amp, 2500mAh, Flat Top

different from this cell?:

PRODUCT DETAILS LG ICR18650HE2 2500 mAh High Discharge Flat Top (LGBDHE21865)

Battery purchases in pairs receive free cases.

Specifications:
Nominal Capacity: 2500 mAh
Nominal Voltage: 3.6V
Discharge End Voltage: 2.5V
Standard Charging Current: 1.25A
Charging Voltage: 4.20+-0.05V
Max. Continuous Discharging Current: 20A
Internal Resistance: <20 milli-ohms
Dimensions:
65.00mm (L) x 18.30 mm (D)
Weight: 48.0g

18650 LG 18650HE2 2500mAh High Discharge Flat Top - Batteries, Chargers, and PowerPax Carriers


to me it seems like the madvapes one is a newer version of the illumination supply one. BUT, no specs seems to have been improved. thoughts?

 

[Baditude]

The LG18650HE2 is a fairly familiar battery to vapers, with a 20 amp continuous rating. It also is allegedly the same cell used in the purple Efest 18650 2600 mah battery which Efest advertises as a 35 amp battery. Illumination Supply recently had a voluntary recall of some Sony VTC5 batteries which they found out to be re-wrapped LG18650HE2 batteries.

I've never heard of this Mad Vapes LE DGHR 2185 battery. Your guess is as good as mine. I will say that I don't like how they advertise the pulse amp limit instead of the continuous amp limit. That's as bad as Efest doing the same thing with their purple "35 amp" battery which is 20 amps continuous. The battery industry standard is to use "continuous". Every manufacturer and reseller has their own idea of what a "pulse" rating is, so it is not reliable to judge one battery vs another.

 

[muzichead]

I'm with Baditude on this one. I actually have 3 of the LG HE2's but the #'s on mine are LGDBHE21865. They are great batteries, but then again I don't usually vape below .5Ω's though... I have been very happy with the upgrade to these from my Panasonic CGR's.... With all the problems reported on the VTC's I decided on these...

 

[Kemosabe]

Thanks for the input guys.

I've had my eye on these lg cells for a while (the he2 model). Same thing with the Sammy INR 25r. I'm like you, I don't really vape much below 0.5 ohm. Based on my research, For my applications, I believe the lg and samsung to be better cells. Nothing against the sonys, but like you say there are concerns.

But at the same time, I feel new cells might be on the horizon and if a nice 20 or so amp cell with 3000mah or so gets released, I'd rather have that. The purple efest 20A 3100mah got terrible reviews and that's the only one in that range I could find.

 

[ddkl7780]

Ive used these LG's on builds low as .12 never had any issues. 20 amp cont pulse to 35 amp. Fully charged 4.2v .12 build ur getting 35 amp. Although I do think sonys perform better but those are hard to get now. I think Samsung has 20 amp continuous pulse to 100 out now. There arent many choices but I have been using LGs for a year now and in my opinon are solid.

 

[Kemosabe]

has anyone used the LE DGHR 2185 (the LG madvapes is selling)?

i ended up getting some of the HE2 cells from illum and theyre quite good for my applications, which are around 0.5Ω mostly.

 

[Froth]

There are two revisions of the LG Cell, which is why there are differing specs listed.

Here is revision 0 of the LG 18650 HE2
- http://www.powerstream.com/p/LG-ICR18650HE2-REV0.pdf

Here is revision 1 of the LG 18650 HE2
- http://www.powerstream.com/p/LG 18650HE2 Technical Information.pdf

revision 1 has been tested to 35A and passed, look at that impressive 35A discharge curve! The "LGBDHE21865" is the writing LG prints onto the outside wrapper of each battery cell, they are both still 18650 HE2 cells. One is just a very very slightly updated version. IMO it is very likely that most of the LG HE2's on the market are the revision 1 or newest version due to the spec sheet being posted in mid 2013, the VTC5 data sheet is around the middle of 2013 and we've seen plenty of those batteries.

 

[Ryedan]

revision 1 has been tested to 35A and passed, look at that impressive 35A discharge curve!

The HE2 is rated at 20 amps continuous on the spec sheets. It was very likely cooled at 35A. If I remember correctly, at 20A these batteries heat up to over 200 deg F, just like the VTC's do at 30A.

 

[Froth]

The HE2 is rated at 20 amps continuous on the spec sheets. It was very likely cooled at 35A. If I remember correctly, at 20A these batteries heat up to over 200 deg F, just like the VTC's do at 30A.

If we're all going to live and die by spec sheets, the VTC5 should be considered a 20A constant cell, however because of independent outside testing we call it a 30A cell even though the official spec sheet never even mentions it being tested at 30A for continuous drain, as a matter of fact there is zero mention of any 30A tests at all being done on the VTC5 cell in the "official" spec sheet. However, we know that the VTC4 gets to 100°C from a constant 30A drain, that's hot enough to blister skin on contact and change the internal chemistry of the battery... The VTC5 has more run time/mah, so theoretically it will get even hotter during a 30A constant drain but still the VTC5 cells are considered "safe" at 30A constant with no mention of external cooling needed.

Spec sheets are definitely a good starting point, but they're not the end-all-be-all when it comes to the information needed.

 

[tj99959]

And now you know why my personal rule of thumb is to never exceed 50% of the continues amp rating.