Test/review of Hohm 18650 Work2 2547mAh (Black-white)

[HKJ]

[size=+3]Hohm 18650 Work2 2547mAh (Black-white)[/size]

Official specifications:

• Capacity: 2547mAh
• Max Charge Rate: 3.82A
• Max Charge Voltage: 4.2V
• Continuous Discharge Rate: 25.3A
• Max 80oC | 3.2V cut-off: 35.8A
• Pulse | Peak6: 42.4A
• Cycle Life Retention: 500 Cycles (69%), 1000 (58%)
• Chemistry Type: QSP Li-NMC

The specifications for the battery sound fine and the two cells match very nicely in the discharge curve, but a internal fuse blows at 15A discharge current

The battery is not hot on the outside when the fuse blows.

[size=+3]Conclusion[/size]

The batteries looks fine at low current (That is 10A), but something is wrong with the current rating or the batteries. The overload fuse burns out way below rating.



[size=+3]Notes and links[/size]

The batteries was supplied by Hohmtech for 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

 

[bcm00re]

Thanks for the review on these Hohm Tech batteries. Any chance you a review of their Hohm Tech Base 4 charger in your queue? If so, I am particularly curious to hear about their "Battery Doctor" mode and how it compares to the repair/restore function of other chargers.

 

[HKJ]

Any chance you a review of their Hohm Tech Base 4 charger in your queue? If so, I am particularly curious to hear about their "Battery Doctor" mode and how it compares to the repair/restore function of other chargers.

I only got the more simple chargers from them for review.

 

[bcm00re]

I only got the more simple chargers from them for review.

Okay, thanks for letting me know.