| Stage of energy transmission | BEVs with lead-acid batteries | BEVs with lithium-ion batteries |
| Charger | 85% - 87% | 88% - 90% |
| Charging and discharging cycle | 75% - 85% | 85% - 95% |
| Electronic management | 96% - 98% | 96% - 98% |
| Electric motor | 90% - 95% | 90% - 95% |
| Total | 55% - 65% | 65% - 79% |
| Total average | 60% | 72% |