Xiaomi

Most 10,000 mAh power banks are about 37 Wh at 3.7 V, which is well below the common 100 Wh airline threshold.

A 20,000 mAh power bank is usually about 74 Wh at 3.7 V, so it is normally under the 100 Wh threshold.

Many 25,000 mAh power banks are around 92.5 Wh at 3.7 V, usually below 100 Wh but close enough to check the printed label.

A 30,000 mAh power bank is usually about 111 Wh at 3.7 V, which commonly requires airline approval and may be refused on some trips.

Power banks at or below 100 Wh are generally allowed in carry-on baggage without prior airline approval.

Power banks above 100 Wh and up to 160 Wh usually require airline approval and are often limited to two units per passenger.

74.0 Wh · 20,000 mAh · MU · CN

111.0 Wh · 30,000 mAh · CA · CN

74.0 Wh · 20,000 mAh · TG · TH

90.8 Wh · 25,000 mAh · SQ · SG

89.0 Wh · 24,500 mAh · CX · HK

74.4 Wh · 20,000 mAh · CA · CN

74.0 Wh · 20,000 mAh · VJ · VN