SY-RSZ350 Capacity: 350W/ 303Wh /82300mAh Battery cells: Lithium-ion cells Dimension: L280*W190*H138mm Net Weight: 5kg
https://www.siyopower.com/The-2nd-generation-No-fan-Design-Portable-Power-Station-350W-303Wh-168.htmlSY-WA300 Capacity: 300W/ 303Wh /82300mAh Battery cells: Lithium-ion cells Dimension: 210*226*150mm Net Weight:5kg
https://www.siyopower.com/waterproof-Euro-new-generation-No-fan-Design-Portable-Power-Station-300W-178.html