Onboard charger

Delphi onboard charger is an aftermarket solution for plug-in hybrid electric vehicles (PHEV) and battery electric vehicles (BEV) that converts AC to DC in order to charge the traction battery pack.

Since 2015, Delphi offers a wide range of AC/DC onboard chargers in production that support fast charging for plug-in hybrid and battery electric vehicles. We apply the same technological expertise to our aftermarket onboard chargers for exact OE performance.

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What is an onboard charger for an electric vehicle?

Unlike internal combustion engines, plug-in hybrid electric vehicles (PHEV) and battery electric vehicles (BEV) use an electric traction motor to drive the vehicle’s wheels. The onboard charger charges the traction battery pack, and the energy stored in the battery is then used to power the electric motor.

When an electric vehicle is plugged into a household outlet or a level 2 charger, the charging cable pulls alternating current (AC) from the power grid and sends it to the onboard charger. In order to store the electric power in the battery, the onboard charger must then convert AC to direct current (DC).

To learn more about electric vehicle charging at home-> Visit our Mode 2 charging cables product page.

Additionally, the onboard charger monitors voltage, current, temperature, and state of charge while charging for the safety of the electrical system and the driver.

To learn more about OE quality aftermarket EV parts you can trust, contact your Delphi representative today.

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Related product resources and downloads

How to identify different EV connectors | Masters of Motion

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How to get to grips with EV connectors

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Power Electronics Vehicle Electronics & Engine Management How to Technicians 1 min read

Resource Highlights

Understand the four different types of connectors for charging electric vehicles, with tips and advice from our Delphi Technologies expert.

What are the types of connectors for charging an EV vehicle?

There are four connectors for electrical vehicle charging: Type 1, Type 2, CCS and CHAdeMO. Type 1 and Type 2 are generally used when slow charging the vehicle from an AC power source. CCS and CHAdeMO are used when fast charging the vehicle from a DC power source.

There are some exceptions to this, for example some older models of the Renault ZOE use a Type 2 connector to fast charge. There are adapters on the market to allow some flexibility in what chargers the vehicle can connect to.

Which types of charging connectors are most common in Europe?

Generally, European vehicles will have two charging ports that use Type 2 (for slow charging) and CCS connectors (for fast charging). Most Asian application vehicles use a Type 1 and CHAdeMO. Some Asian vehicle manufactures may have a hybrid combination, to make the vehicle more suited for the European market. For example, switching out a Type 1 for a Type 2, but retaining the CHAdeMO connector.

What is a common cause of an EV vehicle not fast charging?

If a customer tells you that their EV vehicle isn’t charging properly when connected to a fast charging point, it maybe because they didn’t use the right connector. They may have picked up the Type 2 because that is what the customer is used to charging their vehicle at home when slow charging. However, the Type 2 fast charge would only work on specific older models (such as the Renault ZOE). Advise your customers to always use either a CCS or CHAdeMO connector to fast charge.