State-of-Health Estimation for Lithium-Ion Battery Based on an Attention-Based CNN-GRU Model with Reconstructed Feature Series

Table 3

Average RMSE and MAE based on different methods.

Approach	SVR	GPR	GRU	CNN-GRU	AB CNN-GRU
RMSE (%)	1.567	1.541	1.107	1.103	0.782
MAE (%)	1.344	1.321	0.950	0.943	0.669