Zendure's 10,000 mAh SuperMini X3 portable battery can keep your handheld topped off without being bulky, available for $34.99 on Amazon for Prime members.
This 10,000 mAh power bank has USB-A ports (18W, 15W) and a USB-C port (45W), offering fast-charging capabilities similar to the Steam Deck's official charger.
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