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About Us

With 10 years’ experience in the battery electricity storage industry and being one of the major players in China in the area of system integration, we have the knowledge and experience to create the best solution for your project.

iOneAIO(All in one)ESS

> Wide application: Integrate Solar storage, EV charging and Power distribution

> LFP Chemistry: High security, More than 8000 cycles

> Stack design: Up to 7 battery modules connected, expandable from 8kWh to 28kWh

> Easy Installation: Installation in 20 minutes individually

> Intelligence system: Data Visualization, Realtime Monitoring

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Distribution mode

> Safety IP54, Intelligent cooling Automatic fire protection

> Long Service Life LFP cell, 5000 cycles life Durable stainless steel case

> Convenient Turnkey solution Plug and play Modular design Easy to install & maintain

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> Reliable power source:
Trustworthy backup power for your home, office, or outdoor adventures.

> High-performance:
Long-lasting LFP battery with extended cycle life (3000+).

> Bi-directional technology:
Allows for charging and discharging at the same time.

> Fast charging:
Fully charging via AC in only 1-1.5 hs, while Solar in only 3-4 hs.

> Stable power supply:
Uninterruptible power supply within 10ms s witch.

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About us

The World's Top
Quality Safety Batteries

The DOWELLESS series uses world-class safety batteries.

Each battery is carefully checked and tested before delivery.

Ultra High safety test standards across the world: UL, IECEE, TUV Germany, PSE Japan, IATA, RoHS.

Reliable BMS used for energy storage devices, complex technical products such as artificial intelligence, smart devices and robots.

Dowell Corporation

  • 74

    Patents and soft works on power conversion control technology

  • 373

    Product Certification

  • 49

    Patents and soft works on BMS and energy control

  • 10Years+
    Solar industry experience
  • 1GWh
    Bess Global Installation
  • 50+
    Bess Projects
  • Top3
    Ranking of BESS suppliers in China

Dowell Cooperation model

Just be our partners!

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