> less heating I am not so sure about that unless maybe you mod them to extract everything from the original casing and add heatsinks and possibly a fan. Als

> less heating I am not so sure about that unless maybe you mod them to extract everything from the original casing and add heatsinks and possibly a fan. Also from a safety point of view, you'd need to make sure those can still be powered up without their batteries as I wouldn't trust a +10y old smartphone battery on a device that is running unattended 24h/365d/year.