The £20 gadget worth £160 that makes your sluggish iPhone feel brand new again with huge battery boost

IF your iPhone has become sluggish and worn out there's a gadget that might be able to give it a much needed power boost. And at the moment, the accessory is only £19.99 instead of £159.99 on Amazon if you're a Prime member. TRKOY 5,000mAh power bank - £19.99 £159.99 There are all sorts of...