I tested the Anker PowerCore Essential 20000 and it’s good for charging smaller devices but capable of little else
The Anker PowerCore Essential 20000 has a thin design for greater portability – but is it worth taking on your travels?
I opened up a cheap 600W charger to test its build, and found 'goo' inside
Can an off-brand charger compete with the big names? I put it through its paces to find out.