Great Power

Great Power (Penghui Energy) is a Chinese battery manufacturer founded in 2001, listed in Shenzhen (300438). Its stationary-storage business builds on in-house LFP prismatic cells (280 Ah, 314 Ah, 320 Ah, and 587/588 Ah 'Ultra' cells) integrated into two system families. The utility line is the Max-20HC series of 20ft DC liquid-cooled containers: 3.44 MWh (280 Ah), 5.0 MWh (314 Ah), a 3.72 MWh 1P/1C variant, and the 6.25 MWh Max-20HC-6250 on 587 Ah cells presented in 2026. The C&I / distributed line comprises Magna-UTL DC outdoor cabinets (373–418 kWh, 900–1500 Vdc), Magna-C&I AC cabinets with integrated PCS (215–522 kWh), and the immersion-cooled Great One 260-I. Certifications cited by the company include UL 9540A, UL 1973, IEC 62619, IEC 62933 and IEC 61000; the Max-20HC-5000 is additionally stated to meet UL 9540 and NFPA 855/68/69/72. Deployments are claimed in 50+ countries; offices in the US, Germany, Singapore, Indonesia and Japan. Disclosure is limited: no per-model datasheets, only two brochure PDFs (March 2024, June 2026); system RTE, cycle life, warranty and calendar life unpublished for most models; no certification list for the Max-20HC-6250; no specifications for the Great Com container or Magna-C&I-233; no press kit or image licence.

Great Power publishes no image licence or press kit, so model cards show a schematic illustration instead of a manufacturer photo. Photos will be added only with written permission.

No press/media kit on greatpower.net; the Legal Notice page (/en/others/legal.html) is a placeholder ('资料正在更新中'). Product images are only on product pages and in brochure PDFs, copyright © Guangzhou Great Power Energy & Technology Co., Ltd.