# Battery

The power range is from 0% to 100%. For every energy consumed, 1% of the power will be deducted. When the power is 0%, the VFE will be damaged and cannot be repaired by charging. The durability and level of VFE affect the charging cost, and the charging `FUN` cost formula for each point of energy consumed is as follows:

$$FUN\_{cost} = (\frac {E\_{base}+S\_{base}+L\_{base}+D\_{base}} 2+(\frac {E+S+L+D} {4 \* D})^2\*Lv) \* N \* B$$