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Portable Charger RAVPower 20000mAh USB Power Banks with Dual iSmart 2.0 USB Ports, 3.4A Max Output, 2.4A Input £16.69 Prime / £20.68 Non-Prime Sold by Sunvalleytek-UK and Fulfilled by Amazon
Frankly a great price if you are a Prime member, Non-Prime price isn't that bad either! Important to note the input on this, at 2A giving you much quicker recharge speed compared to others.
To get the reduced price, be sure to click on the promotion message on the product page, and redeem the voucher before adding item to your basket



To get the reduced price, be sure to click on the promotion message on the product page, and redeem the voucher before adding item to your basket



- 20000mAh Long Lasting Power: Airplane-friendly high capacity power bank provides 6.1 charges for the iPhone 7, 4 charges for the Samsung Galaxy S8, and 1.6 charges for the iPad Air 2
- Dual Output Meets All Charging Needs: Includes dual iSmart ports for optimized charging with up to 5V/2.4A output per port (Total 5V/3.4A)
- 2X Faster Recharge Speed: Save 50% on your recharge time with a full battery in just 9 to 10 hours
- Thoughtful and Detailed Design: Curved edges offer a better feel and a stylish look; all three ports are located together for convenience and to minimize wire tangling
- Trusted Safety and Protection: Keeps your device safe with voltage surge, over charge/discharge, and high temperature protections
amazon.co.uk/dp/…5_t
I'm not a prime member and just bought this for £16.69. Just remember to add the discount from the drop-down menu where it says 'Promotion message' and crucially change your delivery to the free 3-5 days option.
No, it is 2.4A per port max, but I'd guess most devices won't be able to take more than 2A. It does not support any of the newer quick charging technologies. If you want that you have to pay £9 more (see my link above)
The powerbank is well-built and I have used it daily for ~4 months without issue. The powerbank itself takes around 9 hours to fully charge from a 2.4A wall socket, or Samsung / Apple fast chargers.
Note that this bank really does provide 20,000mAh capacity, and that it holds almost as much charge as RavPower's 26,800mAh version which yields closer to 22,000mAh. I have both, plus a USB power analyser.
This is the best value for money powerbank I have owned/tested.
Looking for a power bank for a long haul flight
it may deliver 80% of the current but proper quick charge doesn't just operate at 5V so its not really the same