Specific charger for HP Prime G1?

[Raymond Del Tondo]

My Apple 1401 12W USB Power Adapter works well for nearly all of my items (phones, headphones, calcs, cameras, flashlights, etc.) which need to be charged.
Once I had an USB micro cable which didn't charge well, propably due to a bad contact area, but most of the cables never developed any problems.

However both my Prime G1 and G2 can be charged easily using the above setup.