Having had troubles resyncing my ctec battery monitor with a new phone, was looking at other options. This is a switched 12v gauge and usb charger in one. Going to direct wire it to the battery and run it to the glove box. Switching it on before ignition i can check the quality of my 12v, and also can then use the 2 x usb to power by internal lights and a phone charger. Keeps the 12v socket in the glove box free from messy wires.
Ctek have told me they had a faulty batch, so hoping they can replace it. Only had it a few months, and now is useless!