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Regenerative braking is a way to harvest electric energy from braking mechanism which usually implemented in electric vehicles. Braking strategies are required to maximize the use of regenerative braking systems. This research aims to design a regenerative braking model for a medium-sized electric bus. Measurements of latitude, longitude, elevation, and speed were firstly conducted by using GPS-based Osmand Android application. Transjakarta Corridor 1 (Kota-Blok M) was used for a test track with a distance of 14 km. Besides using GPS data, WLTP (Worldwide Harmonised Light Vehicle Test Procedure) data is also used for comparison. This study produced a braking strategy model that considers aerodynamic, rolling, and grade resistances as well as electrical component specifications of the electric bus. The model design is then compared to the existing serial, parallel and eco-models. With the design of this system, the regenerative braking model can harvest more energy which increases the mileage of the electric bus.