The Vehicle-to-Load function (V2L)

Powering through natural disasters

Here’s an overview of BYD’s Vehicle‑to‑Load (V2L)—or External Discharge / Vehicle‑to‑Load / Vehicle‑to‑Load‑Output—function, and how it can be a game‑changer during natural disasters and power outages.

The V2L feature in BYD vehicles helps shift the EV role from just personal transportation into a mobile resilience platform. What do we mean by this term? In regions like the Philippines that are prone to storms, floods, or frequent grid instability, your BYD can also serve as temporary power backup.

The V2L function is an easy-to-use temporary power supply that can:

• Run basic household medical devices when regular electricity is unavailable.

• Charge mobile devices like phones, radios, laptops, and flashlights.

• Power essential home appliances like electric fans, WiFi routers, among others.

Features like V2L are increasingly important during calamities as it can even help communities adapt and cope during crises.

What Is V2L in BYD Vehicles?

Vehicle‑to‑Load (V2L) is a function available in many recent BYD EVs which allows you to draw power out of the vehicle’s battery to supply external devices—lights, appliances, medical equipment, etc.—via a discharge connector or V2L adapter.

The V2L function is typically enabled once the discharge connector is used. This connector usually comes free with your new BYD vehicle. It uses the high‑voltage battery pack. When the vehicle is discharging, power flows out via a dedicated discharge port or via the regular charge port (with proper adapter) to run external loads.

The function is subject to safety and operational constraints: the vehicle’s state of charge (SoC) must be sufficiently high; loads must be within the power output capacity; and the V2L connector and cables must be in good condition.

How Big Is the Output / What Can Be Powered

The exact power available depends on the BYD model and the adapter used. For example, some adapters and external discharge setups can provide 2kW to 3.5 kW output.

That means smaller household essentials—lights, fans, phones, and simple medical devices—can be supported, depending on the load.

Real‑World Uses: Natural Calamities & Power Outages

In real emergency situations, the V2L function has already proven its value. BYD Cebu deployed 30 vehicles to deliver relief goods and extend support through mobility and power to earthquake-ravaged northern Cebu.

In a home setting, simple power outages at home are made more bearable thanks to the V2L function.

These examples show how having a mobile, battery‑backed power source can address critical needs, without the noise of a diesel- or gasoline-powered generator.

Considerations & Best Practices

To use V2L effectively and safely during power outages or calamities:

1. Monitor SoC: If the battery level drops too low, you may lose driving range, or the V2L function could shut off. Ensure you have enough charge to get where you need to go after use.

2. Choose what to power carefully: Prioritize essential loads (medical devices, communication, lighting) over non‑essentials. Large loads like air conditioners or heavy appliances may exceed what V2L can support continuously.

3. Use proper equipment: Make sure the V2L adapter, cables, and connectors are rated for the load, undamaged, and safe from moisture or hazards.

4. Keep things dry and safe: Avoid placing connectors or cables under tires, in wet spots, or where they can suffer mechanical damage.

5. Understand restrictions: Some vehicles restrict V2L when SoC is low. Also, during long discharging periods, the vehicle’s auxiliary systems (lights, climate control, etc.) may drain more power than expected.