ZTE MF920V Questions & Answers

No 4G only unless they have updated it.

Sure is - this is what I do!

Hi Suraj, We used to keep ours plugged in 24/7, but I am starting to unplug it when I go out to the shops etc as a safety precaution. As I understand it, the modem is supposed to charge up and then trickle charge (like a mobile phone does if you leave it plugged in). There's nothing in the instructions which suggests that you have to disconnect it after it's fully charged.

However based on our experience, if you do keep it plugged in, keep an eye on the unit. Look for signs of overheating or its battery overheating. You might notice the back cover starting to swell or split open. If you notice this, return it to where you bought it or buy another brand. We're on our third unit and this one is starting to fail too. Hubby thinks this particular brand modem may have a production fault so it doesn't switch over to trickle charge and just keeps overcharging until it overheats. My advice if you leave it plugged in 24/7, check it regularly for signs of the battery swelling and keep it away from flammable materials like papers on the desk etc.