I am starting to think about how to power my Arduino Nano BLE Sense since I would like to use it as a BLE peripheral sending several sensors' datas when it is not connected to the computer. The central I use is a Wio Terminal, for which I will buy the dedicated power chassis.
I have noticed that the BLE doesn't work when the devices are not connected to the computer and the serial monitoring is not lauched. For instance, when I plug the Wio Terminal to a phone charger with a program just displaying on the screen the values measured by the integrated sensors, it works. But when I put a program to send the values using the BLE, it doesn't work: I can't detect the BLE device either on phone apps or with Arduino. On the same way, I can't detect the Arduino Nano BLE Sense with the phone when it is not plugged to the computer and that the serial monitor is not launched.
Could anyone please explain me why? I guess it is possible to use the devices with BLE and without connecting to the computer since there are aimed to be used in an Internet of Objects context.
Also any special LiPo rechargeable battery to recommand me for the Arduino Nano BLE Sense?
I have seen this model https://fr.farnell.com/?pf_custSiteRedirect=true
Thanks in advance for your help