Convenient because avoids opening the refill cap with the original cable. However, despite the magnetism, the contact is very fragile with the phone, the sensor does not engage well but is just in touch. We must therefore lay the phone flat without touching it for the contact remains and the load is done. once you know, the load is done very well. By cons it is impossible to use car because with road vibrations, the magnetic contactor fails and falls all the time. The load must be at rest with the phone flat. I do not regret to have anyway because even buy troubleshoots
