Nous sensors

Hello,

does anybody have some experience with Nous sensors?

https://nous.technology/smart/sensors/

It seems quite impresive. 5 years on battery! Does anybody tried integrate them to Home Assistant? If so, do I need Nous zigbee gateway or it will work with for example zzh! CC2652R Multiprotocol RF Stick?

And another question. Sensors are powered by CR2 battery. Is it possible to power them with rechargable 15270 accumulators?