Test / Review: TrustFire TF26650 5000mAh (Flame)

TrustFire TF26650 5000mAh (Flame)

I have tested this battery from two different sources.

Official specifications:

  • Brand: TrustFire
  • Model: 26650
  • Voltage: 3.7V
  • Capacity: 5000mAh (actual 4000mAh)
  • Rechargeable Li-ion battery
  • Built-in protection circuit
  • Great batteries for your flashlight or other devices
  • Dimensions: 2.68 in x 1.02 in x 1.02 in (6.8 cm x 2.6 cm x 2.6 cm)
  • Weight: 6.38 oz (181 g)

Notice the difference in weight between the two tested batteries.
The charts are not using the same scale as the 18650 charts, due to the higher capacity of this battery.

From DX it is the usual envelope.

They have slightly different capacity, but not much. With the weight difference I had expected more difference.

The two batteries has a different current limit, it is not easy to see on the chart, but one trips at 6.9A the other at 7.6A.

TrustFire TF26650 5000mAh (Flame) Manafont

Official specifications:

  • Operating voltage: 3.7V
  • Capacity: 5000mAh
  • Ultra-high capacity and premium built quality
  • Protected to avoid over-charged or over-discharged

These two batteries did also have a weight difference. They are also slightly longer than the DealExtreme version.

I did only get one battery per envelope, because I ordered them one at a time.


This battery has about 30% more capacity than a 18650, but about 100% more volume, without being able to sustain more current drain. But it does keep a higher voltage than any 18650 battery under load.
The battery has less capacity than stated on the cell.

For a cheap battery it is acceptable.

The Manafont version are slightly better than the DealExtreme version, I cannot tell if this is random variations or not.

Notes and links

I have added the battery to the 18650 comparator, this makes it possible to compare voltage at different loads.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries

Thanks very much HKJ for this and dozens of other excellent battery reviews like this! We really appreciate your hard work.

Frontpage'd and Sticky'd.

That must be close to a record, 3 minutes from posting to frontpage!

Awesome as always

Thanks, HKJ!


I just happened to be processing all of your previous reviews at the same time that you submitted this one. Very nice work sir.

HKJ, you must be a mind reader! I was just thinking how cool it would be to have a tool to select batteries to compare output charts and you've created one!


Thx a lot for this review and the new comparo chart, what a great service to the community!


Were there any other indications or markings to potentially differentiate the two cells?

Thanks again for the well-presented review.

This batteries aren't supposed to be fakes? I thought the ones from MF was genuine

I've got a pair of them coming from CNQG, it is good to know they are 4000mAh being protected, and being able to give about 7A.

Compared to the one benckie tested, these looks better. They have higher voltage during the 3A discharge. This might also be due to resistance in benckie's wires and magnets, the voltage difference is about 0.1 volt, only 0.03 ohm is needed for that at 3A.

With the photos I have posted benckie or anyone else that got these batteries from Manafont, can probably tell if there are any difference in the wrapping or construction.

This is why I spend so much time here ! Thanks HKJ

I always bookmark HKJ's reviews.

Yeah i think my main charge leads, soldering and the rare earth magnets might make a slight diffrence, but still good for reference as 0.1 volt is not much.

Im not confindent DX will maintain sending out good cells and it might end up like the trustfire flame 18650,s they where selling.

The cell i tested i belive is a 100% geniune cell, i have pulled apart the cell to confirm, to see pictures of the cell i tested and striped look here (Manafont cell not DX)


I do like to get it included, that was the reason I did my setup with separate measuring wires.

I do believe that both DX and Manfont did change to a worse 3000mAh battery.

And it might have higher capacity than the DX one, at least you measure more capacity that I do.

It is interesting to see the pictures of the PCB protection.

Thanks to both of you, HKJ and benckie. It's great seeing side by side comparisons - really adds to the knowledge base for the community.

Yep! Thanks both HKJ and Benckie for their work. Really liked the discharge tests showing 4500mah!!

Just a thought between the DX and manafont version:

It seems like Benckie's battery (pic above) from manafont has a hologram sticker below the negative symbol, whereas HKJ's DX doesn't (Opening Post).

What is the deal there? Hmmm..

I just got 4 of them with my TF X100 order. Randomly picked one of them and got 4196mAh @ 1A discharge down to 2.8V, 1st cycle.

FYI fellas, DX has them for US$18.90 now. Price drop from ~ US$23. Hmmm, wonder why…