Efest IMR14500 V2 700mAh (Red)
![DSC_0573](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0573.jpg)
Official specifications:
- Nominal Voltage: 3.7v
- Battery Model: 14500 V2 Capacity: 700mAh
- Positive: Flat top
- Cycle Life: 500 Cycles
- Max Charging Rate: 4.5amps
![Efest%20IMR14500%20V2%20700mAh%20(Red)-info](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-info.png)
![DSC_0572](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0572.jpg)
I got a pile of batteries in one envelope, not the best way to ship batteries, even when they are shrink wrapped. Efest have changed their packing.
![DSC_0575](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0575.jpg)
![DSC_0576](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0576.jpg)
![DSC_0577](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0577.jpg)
![DSC_0578](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/DSC_0578.jpg)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-Capacity](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-Capacity.png)
These has slightly less capacity than the V1 batteries, but does track nicely. At high load they do also have slightly lower output voltage than the V1 batteries.
![Efest%20IMR14500%20V2%20700mAh%20(Red)-CapacityTimeHours](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-CapacityTimeHours.png)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-CapacityTime](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-CapacityTime.png)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-Energy](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-Energy.png)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-PowerLoadTime](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-PowerLoadTime.png)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-TripCurrent](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-TripCurrent.png)
![Efest%20IMR14500%20V2%20700mAh%20(Red)-Charge](https://lygte-info.dk/pic/Batteries2012Small/Efest%20IMR14500%20V2%20700mAh%20(Red)/Efest%20IMR14500%20V2%20700mAh%20(Red)-Charge.png)
Conclusion
These IMR batteries have good performance at high loads, but the capacity is, of course, not that high.
At the current time I can only rate them acceptable, because Efest is a new company, and the batteries is not from one of the big brands.
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
Comparison to other LiIon batteries