Figure compares the MAPE results for velocity and current models across the two time intervals. Firstly, we observed that the MAPE values of the current models are consistently lower than those of the velocity models for both time intervals, even after integrating additional features. For example, in the 300-350s early prediction window, the MAPE values for velocity model 1 and 2 are 10.9% and 7.4%, respectively, whereas the corresponding values for current model 1 and 2 are significantly lower at 4.8% and 4.4%. In the 300-650s early prediction window, the MAPE values for velocity model 1 and 2 decrease to 6.5% and 5.6%, while the current model 1 and 2 show further reductions to 3.5% and 3.2%, respectively. This discrepancy is mainly due to the comprehensive and highly relevant features within current profiles, which exhibit a stronger correlation with the charge usage score than velocity data.