Bought the 3-pack with spare tips (for game console controllers, phone, tablet, e-reader, earbuds, etc.). Previously had problem fully charging tablet with 8 hours on the charger. Turns out it was a partially faulty cable. Using one of the Magnilink cables fully charged my tablet 3-4 hours. Very nice not having to try and stab your charging cable into your devices repeatedly over the course of their lives. Very good for their longevity. Also, extremely convenient. Thank you - wish I had done this sooner.