The Proterra S Series from Proterra are Heavy Duty Electric Vehicle Battery Packs that are ideal for commercial medium and heavy-duty mass transit vehicle applications. They have a DC voltage rating of up to 1200 V, a continuous power rate of up to 1.2E (E-Rate), and a charging rate of 0.5C (C-Rate). The battery packs offer an energy storage capacity of up to 123 kWh per pack and have a cycle life of over 4000 cycles. They also offer high energy density for maximum range, a flexible modular design to fit within a wide variety of vehicles, and ruggedized commercial-grade housing to withstand harsh environments.

These battery packs are provided with active thermal management software that ensures optimal charging and operation sensors for continuous monitoring and diagnostics, resulting in a faster service. They adjust energy reserve dynamically over time for maximum performance and have undergone rigorous vehicle testing and validation programs to ensure the highest standards of safety. These battery packs’ architecture features built-in safety mechanisms and offer consistent temperature control to maximize battery life under any climatic condition. They are available in a module that measures 2808 x 860 x 340 mm.