Charge Fast Portable Charger 20D

BioLite Charge 20 PD — a carry-on-legal backup battery that actually fits in a pocket

The gist: At 5.8 ounces and FAA carry-on compliant, this is the power bank you grab when you want one phone-and-a-half of backup juice without adding real weight to your daypack.

• 6,000mAh capacity: enough for roughly 1.5 full smartphone charges — solid for a day of navigation, photos, and translation apps between outlets.
• 18W USB-C PD output: fast enough to top up a phone quickly at a layover gate, plus a second USB-A port (15W) for charging two devices at once.
• Compact footprint: 5.0 x 3.0 x 0.6 inches — slides into a jacket pocket or the front sleeve of a daypack without adding bulk.
• 2-hour recharge: tops itself back up quickly via USB-C PD, so it's ready to go again during a hostel or airport-lounge stop.

Enwild, an outdoor-gear retailer that carries the Charge 20 PD, confirms the FAA carry-on-compliant rating alongside the full spec sheet.

Best for: travelers who want light backup power for a single phone through a travel day. Skip it if: you're charging a tablet or camera body regularly — 6,000mAh won't stretch far enough; look at a higher-capacity BioLite model instead. Check the current price before buying.