What's under the wrapper (Sofirn + Thorfire 18650s)

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What's under the wrapper (Sofirn + Thorfire 18650s)

Decided to remove the wrapper from some of my Sofirn and Thorefire branded batteries. I did a search and found speculation as to what was underneath but not definite answers.

Three different batteries (all buttontops)
-Thorefire 3000mah protected 18650 (came as part of a Thorefire C8S kit with batt and charger)
-Sofirn 3000mah unprotected 18650 (purchased from AX seller E-battery Store)
-Sofirn 3400mah protected 18650 (purchased from AX seller E-battery store)


They appear to be all the same battery. DLG brand.
I definitely can’t provide a HJK level review of them. However my MiBoxer C4-12 places them all at +/- 3000mah and .050-.060ohms.

Thought this could be an interesting post and maybe an ongoing thread if others would like to contribute their findings with other batteries.

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Location: A light beam away from the missus in the land of Aus.

Thanks Nooner. I’m sure others will chime in.


djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.


59's picture
Last seen: 1 year 4 months ago
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Location: China

DLG,It’s a battery manufacturer in Shanghai.These cell is very cheap in taobao.Performance is close to LG MH1

Petr J.
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Sofirn I consider a good brand. Flashlights are of good quality and cheap. The customer service is great. Put the same accumulator under two wraps and write a different capacity for each one (one much higher than the actual one) as a scam. Same as when Liitokala sells cheap non-branded batteries such as Samsung, Pasasonic, LG etc.

Last seen: 2 hours 24 min ago
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Location: Manila, Philippines

Sofirn seems to have another type of 18650 battery rewrapped just very recently.

Ordered a couple of Sofirn flashlights, and the “Sofirn 3000mAh” 18650 battery’s bottom now has a “ring” the previous Sofirn 3000mAh 18650s are known to be DLGH “3200mAh” 18650 any idea what OEM battery is the new Sofirn 3000mAh 18650 (with bottom ring)? maybe BAK WD N18650CK (nominally 2900-3050mAh, depending on which specs) – this also has a similar “bottom ring”