Test/review of Ebat 26650 5000mAh E7-26P50 (Black)

Batteries and Chargers Rechargeable Batteries
1

Ebat 26650 5000mAh E7-26P50 (Black)







Official specifications:

  • Model: IMR26650 5000mah

  • Normal voltage: 3.7V

  • Normal capacity: 5000mah

  • Charging voltage: 4.2V ± 0.5V Oops, a missing zero, must be 0.05V

  • Discharging cut-off voltage: 2.5V

  • Max. Pulse Discharge Rate: 50A

  • Rechargeable: Yes

  • Size: 26±2mm Dia 65±1mm Length

  • Cycle life: > 500 times

  • Warranty: 12 months

  • Operation Temperature Range: Charge(0~45°C ) Discharge(–10~60°C )




A fairly high capacity and fairly high current, this looks interesting.











Discharge curve looks good, they tracks fairly well and capacity is nearly constant up to 15A.





















Conclusion

The cell looks good. This makes the cell is one of the top performers for 26650 at the current time.



Notes and links

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
Compare to 18650 and other batteries
2

Looks good indeed.
Does someone know a place where I can buy those beauties?

3

Thanks,PBL?

4

This cell totally matches with the originally reviewed cyan wrapped LiitoKala INR26650-50A, the 1C rated Power Long Battery INR26650-50A.

I've not bough 26650s for a long time. Just made a search for these, no places to buy at first. I guess this is a vaping market rewrapper anyway.

The LiitoKala INR26650-50A can be bought at an affordable price in AliExpress. I wonder if the product quality is still consistent and high.

Cheers

Fri, 04/05/2019 - 00:14

5

Do you know about any good 26650 flat top batteries that can be used in serial without using magnets or soldering etc.? Is it legal to combine BT and FT in serial, as long as they else are identical batteries. Ie. Liitokala 26650 BT 50A together with flat top version of the same battery? Maybe stupid question, which of those batteries should then be positioned first in the serial configuration, FT or BT?

6

RapidLux, yes no problem combining under the hood or otherwise identical flat top and button top cells.

With regards to which cell to put first when in series, first question is is the flat top protuberant? If the answer is no then the flat top may only work at the top position.

A low temperature solder like Rose's metal is an excellent way to button top a cell. You can buy the stuff in pellet bags on eBay for relatively little money. Also get some steel flux like this if willing to try this path.

I made this related video long ago: https://www.youtube.com/watch?v=4wHAYkaJ7R4

Cheers ^:)

7

Thanks HKJ!