I had a similar problem to others that have bought this device. I thought it was going to be a great addition to my workspace, but the battery attachment does NOT fit well in my keyboard or magic trackpad and it loses contact or doesn't make contact at all. Save yourself the money and just buy rechargeable batteries separately.
I purchased this product to kiss batteries goodbye and help the environment.
Unfortunately, the battery insert didn't fit my apple wireless keyboard well enough to make contact. That's right, this product from Switzerland has such serious quality control problems that yours may not work at all.
Additionally, the product has a strong chemical smell when removed from the box. This comes from the sparkly aluminum surface intended to match Apple's. But Apple's has no smell at all while this exudes a chemical-like stench. I expect it to vanish once the product airs for a week or so, but since my Magic Bar was defective and had to be returned I may never know.
I would also like to know where and how to get a hold of more recharge inserts. And where is the Magic Bar for trackpads? There's too little info on this product.
A great concept that became a smelly clunker. Mobee, get me a hassle-free replacement now please.