- Limited Electric-Only Range: Smaller batteries reduce the electric-only driving range, which for many PHEVs ranges between 15 to 40 miles. This limited range may not suffice for drivers with longer daily commutes who want to rely primarily on electric power, thus reducing the benefit of plug-in capability.
- Reduced Electric Utility: A smaller battery means the electric motor has less energy reserve, which can limit how much the vehicle can operate emission-free before the combustion engine engages. This can lessen fuel savings and environmental benefits that PHEVs aim to provide.
- Frequent Charging Required: With less stored energy, drivers must recharge more often to maximize electric usage. This can be inconvenient, especially if charging infrastructure or home charging options are limited.
- Impact on Weight and Performance: While smaller batteries are lighter, they may compromise the balance between additional battery weight and usable electric range. This can influence overall vehicle performance and efficiency tradeoffs.
- Higher Complexity Relative to Benefit: Even with smaller batteries, PHEVs maintain the complexity of dual powertrains, so the cost and maintenance complexity remain, potentially making the cost-benefit ratio less favorable compared to larger battery PHEVs or full EVs.
In summary, smaller batteries in PHEVs restrict electric range and usability, making these vehicles more reliant on gasoline engines and reducing potential fuel savings and emissions benefits. This can diminish the attractiveness of a PHEV compared to models with larger batteries or fully electric vehicles.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/are-there-any-drawbacks-to-using-smaller-batteries-in-phevs/
