Anker Prime A1340 27,650mAh 250W Power Bank: features, specs and who it suits

The Anker Prime A1340 is a high-output power bank with 27,650mAh of capacity and 250W of total output across three ports. It is built for people who need to keep a laptop, tablet and phone charged away from a wall socket. This page explains what the figures mean and how to judge whether a power bank of this kind fits your kit.

What 250W total output means

Anker says the A1340 delivers 250W of multi-device charging, keeping a laptop at 140W while it powers a tablet and a phone at the same time. 140W matches the top of the USB Power Delivery 3.1 range, which many larger laptops can use. Total output is shared, so what each port gets depends on what is plugged in.

Anker states that a 16-inch MacBook Pro charges to 50% in 28 minutes. Treat figures like this as the brand's results under its own test conditions. Your laptop's charging profile and battery state will change the outcome.

Capacity in practice

With 27,650mAh, Anker says the power bank can charge a 13-inch MacBook Air (M2) 1.28 times or an iPhone 14 up to 4.67 times. The listing gives the energy as 99.54Wh. That figure matters for flying: Anker notes it meets the TSA limit of under 100Wh for carry-on baggage. Airlines and countries have their own rules, so check the carrier's current policy before you fly.

Recharging the power bank itself

A power bank this size takes time to refill unless it can accept high input. Anker says it recharges fully in 37 minutes with 170W total input from dual chargers, helped by GaN (gallium nitride) technology, which lets chargers run efficiently in a small body. The listing adds that if the bank is fully depleted and the screen is inactive, base charging shuts off automatically, and you restore it by recharging through the USB-C port first. The title notes that the charging base is not included.

App control

The "Anker" app lets you monitor charging status and find the power bank if it is misplaced. Check that the app supports your phone before relying on this feature.

Size and weight

The unit is about 6.4 x 2.0 x 2.2 inches and weighs about 1.5 lb (roughly 680 g). That is dense for its size, though still manageable in a backpack.

Who it suits

It suits frequent travellers, remote workers and photographers who carry a power-hungry laptop and want to charge several devices from one pack.

What to check before you buy

• Laptop wattage: confirm what your laptop's charger is rated for. A 140W port only helps if the laptop can use it.
• Cables: high-wattage charging usually needs suitably rated USB-C cables.
• Recharging: check what chargers you need for the fastest refill, as the base is not included.
• Flying: confirm the current airline rules for power banks.
• What's in the box: the power bank, a 2 ft (0.6 m) USB-C to USB-C cable, travel pouch, quick start guide and a 24-month warranty.

The short version

• 27,650mAh (99.54Wh) power bank with 250W total output over three ports.
• A laptop port of up to 140W while charging two other devices.
• Anker says it meets the under-100Wh TSA carry-on limit.
• Fast recharge of 37 minutes with 170W input via dual chargers.
• App monitoring and locating; about 1.5 lb.

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