Specifications

Part number: ?

Discharge connector: XT60

Balance connector: 4-pin JST-XH

Rated parameters
Dimensions	32 x 20 x 69mm
Continuous Discharge	77.5A
Capacity	1550mAh
Nominal Voltage	11.1V
Charge	0.5-1C
Weight	114g

Derived parameters
Energy Capacity	17.2Wh
Energy Density	483.8J/g

Observed parameters
Dimensions	35 x 23 x 71 mm
DC Internal Resistance	25mΩ
Capacity	~1450mAh

Photos

From the manufacturer:

Test Results

Continuous discharge:

Vaping profiles:

Observations

Both test packs I have are roughly 3 x 3 x 2 mm larger than stated, measured fresh out of the box. They averaged 1450mAh across the continuous discharge and vaping profile tests. Accordingly, I find that these packs are roughly 8% over-rated with respect to capacity. At higher discharge rates, the packs did heat up roughly 10°C, but they stayed at safe temperatures up to 12A continuous discharge.