Test/review of TLife 18650A Protected 2200mAh (Green)

Batteries and Chargers Rechargeable Batteries
1

TLife 18650A Protected 2200mAh (Green)



Button top and flat top protected TLife 2200mAh cells.



TLife 18650A BT Protected 2200mAh (Green)







Official specifications:

  • Model: 18650A

  • Battery Type: Lithium-ion

  • Rechargeable: Yes

  • Protected: Yes

  • Positive terminal style: Button-top

  • Nominal voltage: 3.7V

  • Discharge end voltage: 2.75V

  • Charging voltage: 4.20 +/- 0.03 V

  • Standard charging current: 1.625 A

  • Nominal capacity: 2200mAh

  • Rated capacity (minimum): 2100mAh

  • Dimensions: (2.77 x 0.72)” / (7.04 x 1.84)cm (L x Dia.)

  • Color: Green




This is a low capacity, low current cell. Tmart has this cell in four configurations, this is the protected button top.











The protection limits the current from this cell to less than 3A, the curves looks good enough.



With this low current there are absolutely no temperature problems.












Due to the low protection threshold the battery cannot drive a 10W light.







TLife 18650A FT Protected 2200mAh (Green)



Official specifications:

  • Model: 18650A

  • Battery Type: Lithium-ion

  • Rechargeable: Yes

  • Protected: Yes

  • Positive terminal style: flattop

  • Nominal voltage: 3.7V

  • Discharge end voltage: 2.75V

  • Charging voltage: 4.20 +/- 0.03 V

  • Standard charging current: 1.625 A

  • Nominal capacity: 2200mAh

  • Rated capacity (minimum): 2100mAh

  • Dimensions: (2.73 x 0.72)” / (6.94 x 1.84)cm (L x Dia.)

  • Color: Green




This is a low capacity, low current cell. Tmart has this cell in four configurations, this is the protected flat top.











Something is wrong here, a 2500mAh battery has sneaked into the 2200mAh collection of 2200mAh batteries. This makes me doubt the quality control.



Both types of batteries handles stays cool.


















Conclusion

Due to the low protection threshold these cells are not for 1000 lumen flashlights, but only for equipment with a very moderate current consumption.

Generally these batteries has looked acceptable, but the 2500mAh cell is strange.



Notes and links

The batteries was supplied by TMart.com for a review.

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

Buy one cell and get a bonus 300mAh’s in the next batter. :person_facepalming:
Thanks for the review HKJ.

3

Well, not useful to me. Thanks for doing the testing, HKJ! I had been curious about these after seeing them featured in some adverts! Now I know: AVOID!

Okay, well, I’ll still avoid, just because I’ve already got dozens of laptop pulls that probably will perform at least as well as these - or better! :wink: