Mine arrived yesterday and I immediately did a series of measurements to compare suspected fake 30Q batteries to baseline 30Qs. Results are posted HERE (comment #283) in the Massive sale on 18650s in the Littokala Aliexpress store! thread.
I have to admit that this Battery-Resistance-Voltmeter-Internal-Impedance-Meter-LCD-Rechargeable-SM8124A exceeded my expectations. The performance I saw exceeded that demonstrated in the YouTube video: Internal resistance test of SM8124A - Is it worth it. The improvement may be due to a difference in probes. My meter also came sans case. Thank you BlueSwordM for providing this tip on a realistic IR meter!