Can New Energy Vehicles Have Additional Batteries Installed to Increase Range?

[NatalieRose]

New energy vehicles can have additional batteries installed to increase range. Below is relevant information about new energy vehicles: Overview of New Energy Vehicles: New energy vehicles refer to automobiles that utilize unconventional vehicle fuels as power sources (or use conventional vehicle fuels with new types of onboard power units), integrating advanced technologies in vehicle power control and driving, resulting in vehicles with advanced technical principles, new technologies, and novel structures. Additional Information: New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid electric vehicles, fuel cell vehicles, hydrogen engine vehicles, etc.

[McIsabela]

As a car enthusiast who often tinkers with vehicles, I believe adding extra batteries carries significant risks. The original battery management system is designed for a fixed capacity, and additional installations can disrupt voltage balance, leading to overcharging and overheating of certain battery cells during charging. What's more troublesome is that both the vehicle structure and cooling system would require modifications, which are beyond the capability of ordinary repair shops. Even if you manage to install them, the range improvement is limited, while the increased weight of the vehicle leads to higher energy consumption. Last time, my friend spent a fortune on such modifications, only to experience battery swelling within six months, with repair costs several times higher than the electricity savings.

[StBeau]

From a safety-first perspective, I absolutely do not recommend adding batteries yourself. The battery pack of new energy vehicles is a high-voltage system, and non-professional modifications can easily cause short circuits and fires. The original vehicle's cooling ducts and crash structures were not designed to accommodate additional batteries, significantly increasing the danger in the event of a collision. Moreover, the manufacturer's warranty terms clearly state that illegal battery modifications will void the warranty, leaving you to pay for repairs out of pocket. If you really want to improve range, it's better to check tire pressure during maintenance. Insufficient tire pressure increases rolling resistance, wasting up to 5% of your battery power. Additionally, avoiding sudden acceleration while driving can also save energy. These small tips are both safe and cost-effective.

[DiWyatt]

From a policy and regulatory perspective, privately modifying batteries is completely unfeasible. China's 'Technical Requirements for the Safe Operation of New Energy Vehicles' mandates that the battery system must be certified as a whole, and any individual additions constitute illegal modifications. During annual inspections, the vehicle management office checks the battery serial numbers, and discrepancies will result in failure. Insurance company policies also stipulate that accidents caused by unauthorized modifications to core components can lead to claim denials. Last year, there was a local case where a car owner added a battery and was involved in a rear-end collision, resulting in over 100,000 yuan in repair costs being borne entirely by themselves, along with a 2,000 yuan fine for illegal modifications.