尼日利亚采购需求：充电宝

I am looking for power banks with a capacity of 30,000mAh. Please provide details on your available models, including their specifications and features. I'm particularly interested in the size, weight, output ports, and charging speed, as these factors are crucial for my decision-making process. Additionally, I'd like to know about your pricing, minimum order quantities, and lead times for delivery. It would also be great to get information on bulk discounts and warranty options. If you have any certifications or quality assurance processes, please share those as well. Looking forward to your prompt response so that we can potentially establish a solid partnership.