Buying a power bank is easier when you know what the numbers mean. This guide covers capacity, airline rules, output ports and the Australian compliance mark.
Start with watt-hours, not just mAh
Power banks are sold by capacity in mAh (milliamp-hours), but airline rules use watt-hours (Wh). To convert, multiply the mAh by the battery voltage and divide by 1,000. Most power banks use cells rated at roughly 3.6 to 3.85V, so a 10,000mAh power bank works out at roughly 36 to 38.5Wh. If the label prints a rated Wh figure, use that.
Flying with a power bank
- Carry power banks in your cabin baggage. Lithium batteries should not go in checked baggage.
- Most airlines follow an international limit of 100Wh per power bank without special approval. Larger ones, generally up to 160Wh, need the airline's approval.
- Airlines can also restrict how you use a power bank during the flight.
Rules change, so treat this as a guide and check your airline's current policy and guidance from the Civil Aviation Safety Authority (CASA) before you fly.
What the output ports tell you
Check the maximum output of each port, in watts, and whether the power bank can charge more than one device at once. Compare the port ratings with the charger that came with your phone or tablet: a power bank that matches your device's charging speed will charge it faster than one that does not.
Built-in cables
A power bank with built-in cables is one less thing to pack. The melux Go Charger 10 has built-in USB-C and Lightning cables, plus USB-C and USB-A ports. Its listed outputs are: USB-A up to 22.5W, USB-C up to 20W, built-in USB-C cable up to 22.5W (SCP supported) and built-in Lightning cable 10W. It recharges through USB-C at up to 18W.
Check that it is registered for sale in Australia
Electrical products sold in Australia should carry the RCM mark, and the supplier should be registered on the national EESS database. The melux Go Charger 10 (model MPB10W) is registered under RCM number E2026001144.
A quick checklist
- Rated capacity in mAh and Wh on the label
- Maximum output of each port
- The ports or built-in cables you need (USB-C, USB-A, Lightning)
- The RCM mark
- Warranty length
- Size and weight for carry-on
The melux Go Charger 10
A 10,000mAh power bank in Black or White with a PC and ABS body. See the full specifications on the Go Charger 10 page.
Ordering from melux
- Dispatch from Melbourne, normally within 2 to 3 business days.
- 1-year warranty on our chargers and power banks.
- 30-day change-of-mind returns for items that are unused and unopened (see our Terms and Conditions).
- Questions? Email [email protected].
How to Choose a Power Bank for Travel in Australia: mAh, Wh and Airline Rules