Product profile

Anker 335 Power Bank 20000mAh

Brand: Anker

A dependable mainstream alternative for shoppers who prioritise brand familiarity and long-term ownership confidence.

First published: 31/03/2026 · Product details reviewed: 31/03/2026

Review dates are recorded updates rather than continuous monitoring.

How this profile was reviewed

Criteria-based comparison

A comparison with stated criteria, trade-offs, attributable sources and reasons for each recommendation.

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Not for you if / Check before buying

These checks summarise the information used in our buying guides. Confirm final details with the retailer before buying.

Not for small spaces where the listed footprint or clearance is a hard constraint.

Does not include wall charger in the box.
Confirm exact model, capacity, USB-C PD/output wattage, port mix, supplied cables and seller terms before checkout.
For travel, check the Wh rating and the current airline or airport rules for your route rather than assuming acceptance.
For laptops, tablets or handheld consoles, confirm the device wattage requirement and cable rating before relying on fast charging.

Best for

Not for you if

Spec	Value
Capacity	20000mAh
Max output	20W
USB-C output	Not yet verified
Airline safe	Not yet verified
Output ports	USB output port mix is route-relevant; verify exact USB-C/USB-A count, simultaneous-output behaviour and cable requirements on the current model listing before buying.
Input charging	Recharge/input method and input wattage are route-relevant; verify the exact model listing and supplied cable or charger requirements before buying.
Weight and portability notes	Treat as a higher-capacity pack; confirm current listed weight, dimensions and bag/pocket fit before purchase.
Device fit notes	Match the power bank output, USB-C PD support, cable rating and port mix to your exact phone, tablet, handheld console or laptop requirements before buying.

Pros

Cons

Check current details