Baseus PicoGo Air 5K review: An ultra-thin power bank to match the iPhone 18 Pro

• Baseus PicoGo Air: 3.7oz (105g)
• BMX SolidSafe Air 5K: 4.1oz (116g)
• Anker Nano 5K MagGo Slim: 4.3oz (122g)
• Vonmählen Evergreen Mag 5000mAh: 4.34oz (123g)
• PhoneSuit Elite Mag Slim 5K: 3.88oz (110g)
• Baseus PicoGo Ultra-Slim 5K: 3.77oz (107g)
• Kuxiu S2 5K (also semi-solid state): 6.14oz (174g)
• Infinacore M3 Mini 5K: 3.88oz (110g)

The PicoGo Air is therefore crowned the lightest power bank we’ve tested, taking that honor from Baseus’s own PicoGo Ultra-Slim. Read more reviews of the best magnetic wireless power banks.

What is the exact battery capacity of the Baseus PicoGo Air?

Power banks are generally classified in milliamp (mAh) hours: 5000mAh as 5K, 10000mAh as 10K, 25000mAh as 25K, and so on.

The Baseus PicoGo Air AM71 is labelled a 5K power bank, as its headline capacity is 5,000mAh, but if we look at the battery capacity in the different measurement of Watt hours (Wh) we get a more accurate view to compare power banks.

The PicoGo Air has a battery capacity of 19.4Wh, against an average 19Wh so a little higher than most. Its slim rival, the SolidSafe Air, has a slightly smaller 18.5Wh capacity, although it did a little better in our recharging tests; which we’ll explain below.