Cited sources
Last verified 2026-09-25.
- Legal manufacturer as printed: Dongguan Lithium Valley Energy Co. Ltd.
- The maker describes the W8-5C as a wall-mounted home battery that uses sodium-ion (Na-ion) technology.
- It appears as a product listing in the maker's catalogue, and the page gives no price, availability, launch date or sales market, so its market status is unclear.
- The maker lists 7.68 kWh of usable energy and a cycle-life claim of 8,000 cycles at 80% depth of discharge (25°C, 0.5C); these are the maker's own figures, not independently tested values.
- It cannot be scored yet because the page publishes no warranty terms, no round-trip efficiency and no continuous power rating, and UL1973 is listed without a certificate number.
- This record is not joined to any other battery record, including products with similar headline figures.
- Lithium Valley W8-5C product pagehttps://lithiumvalley.com/product/w8-5c-%EF%BC%88wall-mounted-sodium-ion-home-battery%EF%BC%89/
The maker's product page prints the name and model code, describes the sodium-ion chemistry, and lists the energy, cycle-life and certification claims.
- Lithium Valley products cataloguehttps://www.lithiumvalley.com/products/
The maker's catalogue lists the W8-5C among its residential energy storage products and prints the legal company name.