Nothing kills a travel day faster than a dead phone at 2pm with no offline maps, no boarding pass, and no way to call your hostel. A proper charging kit isn't just convenience gear — it's insurance against the 14-hour bus rides, delayed flights, and hostels where the one working outlet is behind someone else's bunk. Here's exactly what to carry and what to skip.
Power Bank Sizing: 10K, 20K, or 26K mAh
The 10,000mAh bank (like the Anker 523 at 220g, around $25) gives you roughly two full phone charges and fits in a jacket pocket. It's enough for city trips where outlets are always nearby. For backpacking, the 20,000mAh sweet spot — the Anker 537 (350g, $45) or Baseus Blade (380g) — delivers four phone charges or one laptop top-up, and lasts a full 36 hours of heavy navigation and photo use. The 26,800mAh tanks like the Anker 737 (630g, $90) are only worth the weight if you're charging a laptop regularly or spending multiple days off-grid in places like rural Laos or Moroccan desert camps. Airlines allow power banks up to 100Wh (roughly 27,000mAh at 3.7V) in carry-on luggage — never in checked bags. The 20K bank is the Goldilocks choice for 90% of travelers: enough capacity for a two-day buffer, light enough that you don't notice it in your daypack.
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Stop carrying separate chargers for your phone, earbuds, power bank, and laptop. A single GaN charger with multiple ports replaces all of them. The Anker 735 (65W, 3-port, 130g, $45) charges a MacBook Air, phone, and earbuds simultaneously from one wall outlet. The Ugreen Nexode 100W handles heavier laptops. Look for at least one USB-C PD port at 45W+ for laptop charging. For adapters, skip the cheap swivel types that fall out of loose outlets at 3am. The Epicka Universal Adapter ($20, 170g) covers US, EU, UK, and AU sockets with built-in USB-A and USB-C ports, so it doubles as a basic charger. Carry a 1-meter and a 2-meter USB-C cable — the short one for your daypack, the long one for reaching awkward hostel outlets from your top bunk. Airport charging etiquette matters: never unplug someone else's device, and if you're using a multi-port charger near a gate, offer to share the extra ports. You'll make a friend and potentially a travel buddy.
