Vehicle Technology & Energy Centre

Repurposed Battery DC Fast Charger

B2U Project Overview

Repurposed battery DC fast charger

The B2U project involves the second-life use of the batteries from the previous Winnipeg Transit Electric Bus Demonstration. The Vehicle Technology & Energy Centre (VTEC) team designed, built, and tested the system to utilize repurposed batteries as an energy storage system (ESS) to power a 25-kW direct current fast charger (DCFC).

The ESS is charged at off-peak times and stores energy for peak use times. The charger is equipped with a combined charging system (CCS) and CHAdeMO dispensers to accommodate most electric vehicles.

Key components


The B2U project was made possible by funding from the Natural Sciences and Engineering Research Council of Canada and Natural Resources Canada.

Thank you to NFI Group for providing technical support and generously donating repurposed batteries for the project. 

We appreciate the guidance from our consultant Rick Szymczyk at Upstartz Energy Ltd – you made sure everything progressed smoothly.

We also appreciate the help from the SteVe Server developing team at RWTH Aachen University in Germany and @DeltaVetal26 on Github.

A special thanks to the RRC Polytech facility team, communication and marketing teams, and everyone at the College who supported the project.


Contact Us

Vehicle Technology & Energy Centre
2055 Notre Dame Ave, Winnipeg, MB | 204-631-3322

RRC Polytech campuses are located on the lands of Anishinaabe, Ininiwak, Anishininew, Dakota, and Dené, and the National Homeland of the Red River Métis.

We recognize and honour Treaty 3 Territory Shoal Lake 40 First Nation, the source of Winnipeg’s clean drinking water. In addition, we acknowledge Treaty Territories which provide us with access to electricity we use in both our personal and professional lives.

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