Test/review of Shockli IMR26650 5500mAh (Black) 2017

Yeah, there are normal variations between batches or even individual cells and it would be bad if they sold a battery as 5900mah if half the time it doesn’t get that.
Also different devices measure the capacity slightly differently, or down to different discharge voltages, or using different discharge currents, so saying 5500 is a safe bet when it can definitely do that or more.

The PLB discharged the battery with 0.2C (1.1A).
With such a discharge, the battery delivers nearly 6000mAh (5900mAh)

The 5700 - 5800mAh, therefore, is not strange to see someone with such discharges.

But above, I saw battery measurements with Opus.
The measurements, however, were during charging.
Opus during charging measures the total current flowing from the circuit.
For the result to be right, it should be subtracted ± 300mAh.

The most accurate measurement to look at battery capacity should be made by discharging.

The PLB discharged the battery with 0.2C (1.1A).
With such a discharge, the battery delivers nearly 6000mAh (5900mAh)

The 5700 - 5800mAh, therefore, is not strange to see someone with such discharges.

But above, I saw battery measurements with Opus.
The measurements, however, were during charging.
Opus during charging measures the total current flowing from the circuit.
For the result to be right, it should be subtracted ± 300mAh.

The most accurate measurement to look at battery capacity should be made by discharging.

This is the PLB test :

http://gr.plb-batterypack.com/Content/ue/net/upload1/Other/31531/6360981837394597488448928.jpg

Hi, I bought these batteries Shockli 26650 5500mAh (top button) a few days ago and I tested them on my 3600 lumen (each) underwater torches. Preaviously I had “common” batteries that didn’t run the cree led (3x XM-L2) at maximum capability; now the difference is clear. I am very happy for the results and I can confirm the very good drainage capacity. These is a real high current cell with very good capacity!

Many thanks to Simon (Marketing Director) for availability and professionalism shown!

I can confirm that Shockli 26650 5500mAh (button top) fits in the following flashlights:

- ThruNite TC20

- Acebeam EC50 II

- Acebeam EC60

- HaikeLite SC01

- HaikeLite SC02

- Imalent DN70

- DQG Tiny 26650 III

- OnTheRoad X5

- Convoy L6

- Convoy BD06

  • KDY K5 (battery is a little too small, tailcap spring has to be stretched)

Pressfit / no fit:

- Palight Star GS1200

  • Eagle Eye X7

Received my Shockli IMR 5500 FLAT top after about 3 or 4 weeks (to arrive in Italy from China).
They were perfectly boxed, with a double battery case and two little magnets to use them in series!

I tried them on my TC20 and worked greatly, now I’m waiting the Acebeam EC50 gen III to be back in stock and try them with it (Acebeam original 26650 battery is not good enough for a 1500 lm or more flashlight…).

P.S. I noticed that they works also in series without magnets :+1:

Thanks Simon :beer:

Where are you order ? Link please.

I ordered directly from Simon, you can write him here on BLF in PM or via customer care of Shockli official page.

Vapcell INR26650 3.7V 5900mAh Rechargeable Li-ion Battery (4-Pack) @ FastTech

Cheers :-D

It’s the same cell? I’m dying to find any cells in stock that are shipped to germany. (for a normal price)

Very nice review. Thank you.

Ok. I have to say i am very impressed it with the shockli imr… i got the lumen tube, so i get better reading…

Thrunite tc20 with shockli imr
Turn on… 3820 lumen
@30 seconds… 3740 lumen

Thrunite tc20 with thrunite oem 26650
Turn on. 3860 lumen
@30 seconds… 3210 lumen

As you can see shockli imr maintain 3740 lumen after 30 seconds…

Capacity test of the Shockli cell I just got from MTN Electronics. Not sure if it’s the same cell as HKJ tested since the wrapper is different. Discharge current: 500 mA.

Yes it is the same cell, they changed the wrap shortly after it was released.
Idk why, I liked the one with the red warning.

They just changed the wrapper.

Thanks. Yeah, the older label looked more professional, IMO.

Also, the mfg stated max charging current is only 2A, so that’s only about 0.35C. Seems a bit low, given the cell’s low IR and overall capacity. Are there safety concerns about charging it at a higher rate, say 3A?

Or is the 2A rate given to maximize the cell’s life?

Standard charge current from the actual manufacturer, powerlong battery, is 0.5C or 2.75A.

http://m.powerlongbattery.com/battery-cells/li-ion-battery-for-electric-vehicle/3-6v-3-7v-5500mah-nicomn-battery-cell-for-evs.html

.35C is said to be ideal for longevity, .5C is the “standard” rate, and 1C is a fast rate, for lithium ion batteries in general.

Foul looking chinese market wrapper, in my opinion. “IMR 30A”, incorrect and misleading.

Given that OEMs do not seem completely happy pertaining with direct consumer sales of their cells and we have to live dealing with rewrapping companies, I'd sincerely hope for at least a handful of them to give straight OEM based specifications in their wraps. The rewrapping procedure, as it is, destroys OEM information and alters its specifications. I am not willing to condone this, I fully endorse truth and honesty.

Cheers ^:)

Poor markings, incorrect English translations, and spelling mistakes from a cheap Chinese company? Unheard of. :smiley: