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Small capsule power banks that plug straight into the phone.
Compact 20000mAh power bank with a built-in cable for charging smartphones on the go.
Compact 20000mAh power bank with a built-in cable for charging smartphones on the go.
£23.99
A mini power bank is a small capsule with a plug on the end. Instead of a socket and a cable, it plugs straight into the phone's charging port, so there is nothing else to carry or forget. It is small enough for a coat pocket, a small bag or a coin pocket, for an evening out or the walk home when a full-size power bank would have stayed at home. While it charges, it sits on the end of the phone like a short extension, so the phone is a little longer in your hand.
Because a mini power bank plugs straight in, its plug has to match the phone. iPhone 15 and later use USB-C, as do almost all recent Android phones. iPhone 14 and earlier use Lightning. A USB-C capsule will not fit a Lightning iPhone, and the other way round. The guide to charging cables lists which phones use which, and the plugs are filed together in USB-C and Lightning accessories.
Think about the case too. A thick case can sit proud of the charging port, so a plug made for a bare phone may not push all the way in. Check the listing for how far the plug reaches before choosing one for a phone in a thick case.
Small means less battery, so think of a mini power bank as a top-up rather than a full charge, enough to get the phone through the rest of the day. The mAh on a power bank is measured at its cells, and roughly two-thirds of it reaches the phone. For a full charge or more, look at slim power banks, which hold more in a flat case, or the larger sizes in power banks. A mini power bank refills from a wall charger like any other: use one with a UK three-pin plug.
Yes, carefully. It sticks out of the port, so a knock puts strain on the plug and the socket. Hold the phone, not the capsule, and unplug it before the phone goes in a pocket where it can be bent.
Power banks travel in your hand luggage, never in a checked bag, and the UK Civil Aviation Authority allows two per passenger. They must not be recharged on board, and each should sit in a pouch or its packaging so its sockets cannot touch keys or coins. The limits are in watt-hours: under 100Wh is allowed in the cabin, 100Wh to 160Wh needs the airline's approval, and over 160Wh is not allowed in passenger baggage. Check your airline's own rules as well, as some are stricter.
Never charge a swollen, damaged or hot power bank. Stop using one that bulges, cracks, smells odd, smokes or gets too hot to hold, and do not take it apart. Charge it uncovered on a hard surface, not on a bed or inside a bag, and unplug it once it is full: Electrical Safety First advises against charging power banks overnight or while you are out. An old power bank goes to a battery recycling point, never the household bin.