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Your Battery Storage Questions Answered
Your Battery Storage Questions Answered
Here you’ll find clear, reliable answers to the most common questions about battery energy storage systems. Whether you’re exploring how they work, checking compatibility, or looking for installation and safety guidance, this section provides the essential information you need to make confident decisions.
Williot ENERGY offers standard home battery capacities including 5kWh, 10kWh, 14.34kWh, 15kWh, and 20kWh, available in wall-mounted, stackable, and floor-standing designs. Capacities can be expanded upon request.
We offer a variety of LiFePO4 solar batteries, including Powerwall wall-mounted batteries, stackable modular batteries, and floor-standing mobile battery towers. These are widely used in residential solar systems and compatible with major inverter brands.
Yes. Williot Energy home storage systems support both off-grid and grid-tied modes, allowing for independent power supply in areas without grid access or full energy self-sufficiency when combined with solar panels.
Williot Energy batteries are compatible with leading inverter brands such as Growatt, Deye, Solis, Victron, and SMA, and support RS485 and CAN communication protocols.
Contact our technical team. We provide 24–48h response, remote diagnostics, and on-site support in some regions.
Yes. When paired with a hybrid inverter that supports off-grid mode, the system will seamlessly switch to battery power, ensuring uninterrupted electricity supply during blackouts.
Yes. Williot Energy batteries support up to 16 units in parallel, allowing system capacity to scale beyond 100kWh, suitable for large households or high-demand users.
Our LiFePO4 batteries offer over 6000 to 8500+ cycles, with a service life of more than 15 years under proper usage.
Yes. Williot Energy Cloud and App allow real-time monitoring, alerts, and performance tracking.
SOC stands for State of Charge. It can be viewed via the LCD screen, app, or web dashboard.
Our C&I energy storage systems range from 30kWh, 50kWh, and 100kWh to 500kWh–5MWh containerized systems, and can be customized for various project requirements.
Our ESS supports peak shaving, emergency backup, load shifting, and solar + storage + EV charging integration. It is widely used in factories, warehouses, data centers, EV charging stations, and commercial buildings.
Yes. Williot’s energy storage systems are certified with UL9540A, UN38.3, IEC62619, CE, and ISO9001/14001, ensuring safety, quality, and global compliance.
Our ESS is designed as pre-assembled, plug-and-play systems, requiring minimal on-site work—just cable connections. We also provide full turnkey project services, including design, integration, and deployment support.
Our systems come with an intelligent EMS (Energy Management System) and cloud platform, enabling real-time monitoring, configuration, and remote diagnostics via mobile app or web interface for efficient O&M.
Our high-voltage battery cabinets range from 60kWh, 100kWh to 418kWh, and support modular expansion, which can be easily stacked up to 5MWh or even higher, to meet different project requirements (factories, commercial buildings, telecommunication base stations, micro-grids, etc.).
Yes, Williot’s industrial and commercial energy storage systems can be flexibly configured in grid-connected, off-grid, or hybrid modes to support self-generation and self-consumption, peak/valley arbitrage, emergency power backup, and other application scenarios.
The system has built-in multiple safety mechanisms, including cell-level temperature control, battery pack BMS over-voltage and over-current protection, EMS energy dispatch control, fire smoke detection, and a fault warning system etc. The system complies with international standards, including CE, UN38.3, and IEC 62619.
Yes, the Williot high voltage energy storage system supports parallel connection of multiple cabinets, which is suitable for large and medium-sized industrial and commercial projects or microgrid cluster system deployment.
Yes. We provide integrated after-sales services such as regular inspections, remote monitoring, alarm response, firmware upgrades, etc., for projects worldwide, and support localized engineer resources in key markets.
Our battery systems operate from -20°C to 55°C with over-temperature protection for a wide range of climates and industrial environments.
Williot ENERGY systems are designed to last 8500-12000+ cycles, with a life expectancy of 15-20 years, depending on the conditions of use.
We support mainstream inverter brands such as Deye, Solis, GoodWe, Growatt, Huawei, etc. We can also provide customized EMS system docking solutions according to customer needs.
We support three modes of cooperation, and can customize the battery pack structure, protocol communication, exterior design and whole cabinet system solution for brand owners, system integrators and large energy service providers.
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