CycleWatt's Second-life Battery Energy Storage System E-Stack Unlock Your Efficiency

Electric vehicle charging station outdoors with a sign reading 'CycleWatt' and trees in the background under a clear sky.

The E-Stack is a compact, high-performance BESS designed for commercial & industrial use. It integrates 4 second-life EV batteries and is powered by our self-developed Energy Management System (EMS).

Key Features:

  • Compact & Efficient: Maximizes energy density in a minimal footprint.

  • Smart Management: Our integrated EMS provides real-time monitoring and control.

  • Easy Maintenance: Streamlined access for battery replacement and service.

  • Scalable Deployment: Operate and monitor single unit or multiple systems seamlessly together.

The E-Stack delivers reliability, sustainability, and intelligence — all built with repurposed batteries and advanced software.

40kW/160kWh

4 Packs Per Unit

200-800V DC

Battery Voltage Input

4-8 Hours

Discharge Duration

EMS

Remotely Control

400V AC

3-Phase Output (3L/N/PE)

10MWh

Modular Project Size

Competition Barriers: How to Create an Extremely Safe Second-life BESS

Diagram of a BESS (Battery Energy Storage System) with two main components: a second-life BESS unit and an EV battery, showing deployment and utilization for safer energy storage, alongside text explaining product features including automotive grade batteries, BMS, control algorithms, and validation processes.

How Our E-Stack Can Transform Your Energy Use?

BESS offer solutions for a wide range of sectors and industries. At CycleWatt, we provide customized BESS designed to meet the specific needs of each client.

Our E_Stack addresses unique challenges such as:

  • EV Charging Support: Enhancing EV charging infrastructure with buffer storage to reduce grid demand, enable fast charging without grid upgrades

  • Energy Cost Reduction through peak shaving and load shifting

  • Renewable Integration to stabilize solar and wind power output

  • Backup Power for enhanced reliability and business continuity

    With a focus on innovation and sustainability, we deliver smart, scalable, and efficient energy storage systems that support both economic and environmental goals.

Various images of electrical infrastructure and utility containers, including a graffiti-covered utility transformer, a server room with multiple high-voltage cabinets, an outdoor portable communication or power unit, a data center with open server racks, a solar charging station, and a large metal storage container.

    • Our E-Stack significantly reduces the need for costly grid infrastructure upgrades — which can often require millions of dollars and years to complete — by providing high-power buffer storage right at the charging site.

    • The E-Stack helps significantly reduce energy costs and grid strain by intelligently discharging stored energy during periods of high electricity demand.

    • The E-Stack seamlessly integrates renewable energy sources like solar and wind, storing excess generation when production is high and delivering clean power when it’s needed most.

    • The E-Stack ensures continuous and reliable electricity by storing energy during normal grid operation and automatically supplying backup power during outages or disruptions.