LG 18650 HA4 1300mAh (Purple)
/DSC_7359.jpg)
Official specifications:
- Nominal capacity: 1300mAh
- Nominal voltage: 3.70V
- Discharge cut-off voltage: 2.75V
- Standard charge current: 0.75A
- Maximum charge current: 4.0A
- Maximum discharge current: 30A
- Peak discharge current (4sec): 52.5A
/LG%2018650%20HA4%201300mAh%20(Purple)-info.png)
A high current low capacity tool battery.
/DSC_7357.jpg)
/DSC_7358.jpg)
/DSC_7360.jpg)
/DSC_7361.jpg)
/DSC_7362.jpg)
/DSC_7363.jpg)
/LG%2018650%20HA4%201300mAh%20(Purple)-Capacity.png)
The discharge curves are very good, then match nearly perfectly and capacity do not vary much with load, even at 30A
/LG%2018650%20HA4%201300mAh%20(Purple)-Temp-20.0.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-Temp-30.0.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-CapacityTimeHours.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-CapacityTime.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-Energy.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-PowerLoadTime.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-TripCurrent.png)
/LG%2018650%20HA4%201300mAh%20(Purple)-Charge.png)
Conclusion
With the low capacity is is probably a fairly old generation of tool cells, but high current performance is very good
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