Test/review of LG 18650 D2 3050mAh (Blue)

Batteries and Chargers Rechargeable Batteries
1

LG 18650 D2 3050mAh (Blue)







Official specifications:

  • Nominal capacity: 2050mAh

  • Minimum capacity 2950mAh

  • Nominal voltage: 3.64V

  • Standard charge current: 1475mA

  • Charge voltage: 4.20V /-/-0.05V

  • Charge end current: 50mA

  • Maximum charge current: 2950mA

  • Standard discharge: 590mA

  • Discharge end voltage: 2.75V

  • Maximum discharge current: 1475mA (–20°C ~ 5°C), 5900mA (5°C ~ 45°), 4425mA (45°C ~ 60°C)

  • Cycle life: 300 cycles to 75% with 0.5C charge and discharge.

  • Maximum weight: 49.0g

  • Operating temperature: Charge: 0°C ~ 45°C, Discharge –20°C ~ 60°C

  • Storage temperature: 1 month: –20°C ~ 60°C, 3 months: –20°C ~ 45°C, 1 year: –20°C ~ 20°C



LG batteries with fairly high capacity, but they are too old (2014) to be high current.










The discharge curves tracks nicely and the batteries can deliver the rated 5.9A, but not much more.



















Conclusion

The batteries are good quality batteries, but cannot match newer chemistries for current.



Notes and links

Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.

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

HKJ: _“Conclusion

The batteries are good quality batteries, but cannot match newer chemistries for current.“_

Compared to D1, this model is a step backwards, not a progress, as well as an error in the name of the version. It is not clear why these elements are called “D2”, because there are a lot of completely different versions that these new elements look like much more. The nature of their discharge characteristics can in no way refer to “D” (choice 4,2v-4.35v and high-voltage parameters of the curved discharge lines) :person_facepalming: