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Anker 325 Power Bank, 20000 mAh External Battery PowerIQ Technology USB-C Port, Huge Energy Density, Compatible with iPhone, Samsung Galaxy, iPad and More (White)

£22.495£44.99Clearance
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Power banks range from very low-capacity (anything under 5,000mAh) to medium-capacity (5,000-10,000mAh) and higher-capacity (20,000mAh+). EnergyCell’s portable charger is as basic as power banks get, with just a micro-USB input, a USB-A output and no support for any fast-charging standards. What’s more, it’s slow. The USB-A output is specified as 10W, but in our tests we measured the output at between 7W and 9W depending on the phone. A 15-minute charge only raised the level on our test smartphone by 7%.

We have tested the best power banks by using them to charge a variety of devices, including Apple iPhone, Google Pixel, and Samsung Galaxy phones. We have also charged Apple iPad tablets, and small laptops including a Pixelbook Go and a Surface Laptop Go. To further complicate matters, some energy is also lost through heat. The energy lost can be as low as 15% with some models, but can be much higher in others. The answer to this will depend on your needs. Small power banks can be great for an occasional top up of power on the go – they’re light enough that you’ll hardly feel the weight of them in your bag. Large models give you more juice, but are less portable.Input ports are used to charge a power bank. These tend to be either micro USB or USB-C, and you'll usually find the charge cable comes supplied, and can be plugged into any USB-A mains adaptor, or for instance, the USB port on your laptop. Micro USB (input) In terms of charging, this massive power bank can charge an iPhone 15 more than five times. It can charge a big Galaxy S23 Ultra's 5,000mAh battery three-and-a-half times. Best of all, it charges at the fastest speed available on most of your favorite phones (excluding Oppo/OnePlus's unusual SUPERVOOC battery). Everybody on our gift list who got a new iPhone is going to get an Anker Nano Power Bank (22.5W) this year. This cute little charger is perfectly sized to sit beneath your favorite smartphone, plugged into the USB-C port with a little plug that opens out or hides away for a sleek look. Ask any frequent flyer and they’ll tell you that among their most essential gadgets is one of the best power banks – none of us ever want to be caught in a situation where our phone, headphones, iPad or Bluetooth speaker is running out of juice, and these portable batteries are the best way to keep your devices fully charged when you’re on the go. They’re not just for travellers too, they are invaluable for all your recharging needs when you’re not near a plug. If you've got one of Apple's iPhone 12, 13 or 14 models, there's a new breed of portable charger on the market.

There are plenty of combination power bank and some other device, but the Tylt Bottle 2 actually makes sense because we're usually carrying an insulated water bottle anyway, so we might as well screw a battery onto the bottom. With a 5,700mAh capacity, the Tylt Bottle 2 is just enough to get us through a very busy day, or keep the phone powered while we play games at the cafe.

The best power banks you can buy in 2023

You don't need all those extras: The Anker Prime power bank is pricey, and if you don't care about monitoring charge Wattage or days of battery life, find another option. Anker batteries also look great and are built with high quality parts. The display on our best battery for power users is bright and sharp OLED display, totally unnecessary for a power bank, but that's what makes Anker the best. It far exceeds our expectations of what's necessary to make power banks that are great. Certain technologies can help to improve standards here, which will appeal if fast charging is important. Power delivery, or 'PD', is one of several fast charge technologies, designed to speed up the time it takes for your power bank to charge your devices. It does this by increasing the wattage used to charge to the maximum amount your device can safely handle. This only works with compatible USB-C cables, which have specialised chips that prevent overheating.

Anker is a name that consistently tops lists of the best power banks in Singapore, especially since they have a wide range of power banks to suit any need. But for basic users who appreciate having a ton of juice on hand, the Powercore II 20,000mAh will get the job done. We wish there wasn't such an easy answer to this question, because competition is better for everybody, but Anker is making the best power banks right now by far. It offers the best power-to-weight ratio, the fastest charging, and the most useful features. In fact, our testing confirms what battery makers usually claim. A battery maker will claim between 60% and 70% efficiency, so that 10,000mAh battery will only give your phone around 6,000mAh of extra battery charge, at the least. In practice we find around 65% efficiency, though occasionally we can do even better. For those who need something with more charging power, their slightly bulkier 20,000mAh Mi Power Bank – which has the same functions but double the charging capacity – is also worth a look.What You Get: Anker Prime 20,000mAh Power Bank (200W), 2 ft / 0.6 m USB-C to USB-C charging cable, travel pouch, welcome guide, our worry-free 24-month warranty, and friendly customer service.

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