| Formula | Description |
|---|
| $bi(level)$% | Battery Level (in %) |
| $bi(temp)$°$wi(tempu)$ | Battery Temperature in local unit |
| $bi(tempc)$ | Battery Temperature in celsius |
| $bi(volt)$ | Battery voltage in millivolts |
| $bi(charging)$ | Will return 0 if on battery, 1 if charging |
| $bi(fast)$ | Will return 1 if fast charging, 0 otherwise (Android 5.x or better only) |
| $bi(source)$ | Current power source (Battery, AC, USB or Wireless) |
| $df("hh:mma", bi(plugged))$ | Date of last plugged / unplugged event |
| $bi(current)$ | Realtime charging/discharging current in milliampere |
| $if(bi(charging) = 0, "unplugged", "plugged")$ $tf(bi(plugged))$ | Time since last plugged / unplugged event |
| $df("hh:mma", bi(fullempty))$ | Date of expected next charged/discharged event |
| $if(bi(charging) = 0, discharged, charged)$ $tf(bi(fullempty))$ | Time to next expected charged/discharged event |
| $if(bi(charging) = 0, Discharged, Full)$$if(bi(charging) = 0 | bi(level) < 100, " in " + tf(bi(fullempty) - dp()))$ | Alternate time to next expected charged/discharged event with relative time |
| $bi(level, r30m)$% | Battery Level (in %) 30 minutes ago |
| $bi(source, r1h)$ | Battery Source 1 hour ago |
| $bi(temp, r2h)$°$wi(tempu)$ | Battery Temp 2 hours ago |