@CaeTontaleMtan Strange how nobody is replying to posts about this issue. I just bought an M7350 and need to reconnect the charger to make it charge. I find this happening when I try to charge it while using.

I turn it off at night and plug it in. This is the only time it charges fully.

Experienced this too with an M7350 rental.

CaeTontaleMtan wrote

I recently got a new M7350 to use for SIM 4G network. 

I noticed that when I plugged it into my Mac to charge while using (2015 Mac Pro 13 inch), it charges only up to 74%. After that, although the icon still shows that it is charging, the percentage of the battery will not go up? 

Is there something wrong with the device if so, should I ask for a refund/exchange. Can someone let me know? Please and thank you!