Conclusion: On a backpacking packing list, the items you truly cannot replace are not the tent or the sleeping bag. They are the filings that can only be done before you leave. Nine out of ten pieces of gear are for sale at your destination; a residency registration or a permit to carry prescription medicine is not. And 2026 brought two changes that hit long-term travellers directly: new power bank rules on aircraft from 24 April, and the EU entry system going fully live on 10 April. Reuse last year's checklist and you will be opening your bag at the gate.

Clear the two 2026 rule changes before you touch the packing list

Start with the regulations, not the gear. Miss these and no amount of ultralight optimisation will get you on the plane.

Power banks: two units, 160Wh or less, no charging in flight

Japan's Ministry of Land, Infrastructure, Transport and Tourism announced new cabin rules for power banks on 14 April 2026, effective 24 April. The change follows an emergency revision to the ICAO international standard approved and applied on 27 March. Three rules were added on top of the existing ones:

  • A maximum of two power banks in the cabin (160Wh or less each)
  • Do not charge a power bank in flight
  • Do not charge other devices from a power bank in flight

Power banks have long been banned from checked baggage. That means a third unit cannot be checked and cannot be carried on. It has to be surrendered at the airport.

Backpackers feel this more than anyone. The classic long-trip setup of one large pack plus two spares is no longer legal from 24 April 2026, and topping everything up during a long-haul flight is now off the table too. Several airlines additionally ask passengers to keep power banks within reach rather than in the overhead bin, so that smoke is noticed immediately.

How to rebuild the setup

The workable answer is to stop spreading capacity and start spreading charging options.

  1. Carry at most two power banks rated 160Wh or lower. A typical 20,000mAh unit is roughly 74Wh at 3.7V, so two remain within the limit
  2. Assume you cannot charge in flight. Keep a short cable at the top of your carry-on for the seat power outlet
  3. Bring one multi-port USB charger so an overnight stop refills everything. It weighs less than another battery
  4. Solar panels and AA-powered chargers rarely justify their weight on a city-to-city trip. Drop them unless you are trekking

If your phone doubles as a hotspot, its battery drain rises sharply. The router option is covered in eSIM-compatible mobile routers.

Europe now counts your days automatically

The European Commission states that the Entry/Exit System (EES), which registers non-EU nationals crossing the Schengen external border, became fully operational at all crossing points on 10 April 2026. Instead of a passport stamp, the system records facial images, fingerprints, travel document data and digital entry and exit records. Since the progressive rollout began in October 2025, more than 52 million entries and exits have been registered and over 27,000 entry refusals recorded.

This is the pressure point for long trips. Stamp-based checking left the 90-days-in-any-180 short-stay limit loosely enforced in practice. EES counts it mechanically. Hopping to a neighbouring country and coming back does not reset the clock. If your plan uses the full 90 days, build the calendar backwards from your exit date before you buy the flights.

The EU has also announced that ETIAS, its travel authorisation scheme, will start in the last quarter of 2026, with the exact date to be communicated at least six months before it enters operation. If you are entering Europe this autumn or later, put "check the official ETIAS page" on the checklist itself.

The part of a backpacking packing list nobody writes down

Everything below can only be handled while you are still in your home country.

Staying three months or more is a legal filing, not a suggestion

Japan's Ministry of Foreign Affairs states plainly that anyone staying abroad for three months or more is required to submit an overseas residential registration under Article 16 of the Passport Act. It can be filed from three months before departure, so the moment your ticket is booked is the right moment to file. Travellers on shorter trips fall outside the requirement but can register with the same system to receive destination safety updates before and during the trip. Check the equivalent rule for your own nationality; most countries operate some form of voluntary or mandatory registration.

Medicine: the one-month line and the two-week deadline

Japan's Ministry of Health, Labour and Welfare sets out the following for carrying medicines abroad:

  • Medical narcotics require prior permission both on departure and on return. Only the patient who received the prescription may carry them, for their own treatment; mailing them or asking someone else to carry them is not allowed
  • Medical psychotropics may be carried for personal treatment, but a copy of the prescription or equivalent documentation is required for quantities over one month's supply, or for injectables
  • General medicines should stay in their original containers, and you should not carry more than you need. Some destinations cap the quantity you may bring in

Applications go to the Narcotics Control Department of the regional health bureau covering your address, and must be filed at least two weeks before the departure or entry date. If you take a daily medication and plan a six-month trip, settle this before booking. Note that the one-month threshold mainly governs bringing medicine back in. On the road, the destination country's import limits are often stricter, so carry the generic ingredient names and an English copy of the prescription on paper.

Cash over the threshold, and the gear you bought abroad

Japan Customs requires a declaration for carrying means of payment when the total exceeds one million yen equivalent, covering cash in domestic and foreign currency, cheques including traveller's cheques, promissory notes and securities. Gold bullion of 90% purity or higher is covered above one kilogram. Long-term travellers who carry a thick cash buffer should know where that line sits, and most countries operate a comparable threshold in their own currency.

The less obvious one is the declaration for taking foreign-made goods out of the country. Japan Customs asks travellers carrying items such as foreign-made watches to submit this form and have it verified at departure; if the item goes into checked baggage, the verification must happen before you hand the bag to the airline. For anyone travelling with an imported camera or laptop, this is what stops the item being treated as an overseas purchase when you come home. Forms are available at the customs inspection area in the airport.

Sort your backpacking packing list by what you can buy on the road

With the paperwork done, the gear question collapses into one rule: leave behind anything you can buy there, carry only what you cannot.

Carry it

  • Passport, checked against your destination's remaining-validity requirement, plus a copy and a digital backup stored separately from the original
  • Daily medication, an English copy of the prescription, and any permits
  • Two or more payment cards, kept in different places
  • Connectivity arranged at home (an eSIM), plus confirmation the handset is carrier-unlocked
  • Shoes that fit you, with insoles. Size ranges vary sharply between countries
  • Spare glasses or contacts, and a written copy of your prescription

Leave it

  • Spare clothing beyond three days. Buy for the climate when the climate changes
  • Full-size toiletries and towels. Every country sells them
  • Bulk spare batteries and any third power bank, which you cannot board with anyway
  • Guidebooks. Offline maps replace them

Lock in connectivity with an eSIM before departure

Leaving connectivity to chance makes the first hours after landing the most exposed part of the trip. While you queue at a SIM counter you have no maps, no ride-hailing and no way to confirm the hostel booking. With an eSIM the profile is installed at home and the line simply switches on after landing. For a backpacker crossing borders continuously, a plan covering several countries removes the ritual at every arrival.

Device-side preparation is covered in phone settings for travelling abroad, and validity periods in eSIM expiry and validity. For stays of several months see eSIMs for digital nomads, and if the trip involves work, eSIMs for a working holiday. Plans by destination are listed on Coral eSIM.

A 30-day countdown

  1. 30 days out: Check passport validity. Confirm visa requirements, and for Europe check the official ETIAS status page
  2. 21 days out: Review daily medication with your doctor. If it is a narcotic or psychotropic, start the permit application (the deadline is two weeks)
  3. 14 days out: File the permit. If staying three months or more, submit the residential registration
  4. 7 days out: Cut down to two power banks and read the Wh rating off the units themselves
  5. 3 days out: Buy and install the eSIM, and read through the activation steps
  6. Day before: Check the cash total against the declaration threshold, and prepare the foreign-goods form if you are carrying imported equipment

FAQ

What should I cut first from a backpacking packing list?

Spare clothing. Planning around three days of rotation frees up a third of most packs. Oversized toiletries and guidebooks go next. Passport, medication, payment cards and connectivity are the four items that never come out.

How many power banks can I take on a plane?

Under Japan's rules effective for flights from 24 April 2026, two in the cabin, each 160Wh or less. Checked baggage has long been prohibited, so a third unit cannot travel at all. Charging a power bank in flight, or charging a device from one, is also prohibited.

Can I backpack around Europe for more than three months?

The Schengen area allows 90 days in any 180, and since 10 April 2026 entries and exits are recorded automatically by EES. To stay longer you need to build in non-Schengen countries such as the UK or the Western Balkans, or obtain a national long-stay visa. Stepping across a border and returning does not reset the count.

I need six months of prescription medicine. What paperwork applies?

It depends on the class of drug. Medical narcotics require prior permission in both directions. Medical psychotropics need prescription documentation above a one-month supply or for injectables. General medicines travel in their original containers, but the destination country may cap quantities, so check its rules too. Permit applications close two weeks before the date of travel.

For long-term travel, is a local SIM or an eSIM better?

An eSIM suits backpackers who keep moving, because there is no shop to find at each border and the phone works from the moment you land. If you are staying in one country for months and using very large volumes of data, a local long-term plan may be the better deal. The deciding factor is how often you move.

Gear is available everywhere. Paperwork is only available at home

Backpacking packing lists get rewritten every year not because gear evolves, but because rules move. In 2026 alone, cabin power banks were capped at two from 24 April, and Europe's entry records went fully digital on 10 April. Neither appears on last year's list.

Cutting weight is something you can keep doing on the road; you can always throw things away. A residency registration, a medicine permit or a customs form becomes unreachable the moment you clear departure. Write the countdown down before you start packing. The travellers who reverse that order are the ones who lose day one to an airport.

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