Sone045 Upd

sone045 upd is not a standard consumer term but rather a likely found in:

: Never initiate an interior software rewrite unless your device maintains at least a 60% battery charge or remains plugged into a reliable external power source. sone045 upd

A (pronounced like "soan") is a unit of perceived loudness. This sets it apart from a decibel (dB), which measures physical sound pressure. The sone scale is linear and directly relates to how the human ear experiences volume. sone045 upd is not a standard consumer term