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We've been shipping these USB-C rechargeable lithium batteries for about two years now, and the 18650 format is definitely the most popular—roughly 70% of orders land on that one, though we also do AA, AAA, D size, and 9V depending on the device. The NCM cathode material gives them a solid 1000+ cycle life, which is better than standerd LiFePO4 for high-drain applications, but they're not ideal for extreme cold storage below -20°C (check your warhouse temps before stocking bulk). CE and ROHS are, and we provide MSDS and UN38.3 docs with shipment—usually within 2 business days after payment clears.
Actually, the USB-C charging port is what most procurement folks highlight—it saves them from sourcing separate chargers, and the 0.5C standard charge current means a full top-up in about 2 hours give or take. We've had a few clients push for the 4.2V±0.05V charging spec to match their existing BMS, and that's fine since our internal resistnce stays under 80mΩ, keeping heat low during fast cycles. Anyway, the 1-year manufacturing defects, but we usually have stock on the 18650 and AA sizes, though lead time for custom dimensions can stretch to 20 days or so.
One thing I'd flag: the max continuous discharge current varies by model, and we don't list exact numbers on the COA unless you request it—some buyers overlook this and then ask for a swap when their device pulls 3A from a standard-capacity cell. It's pretty much a non-issue if you specify the draw upfront, but we've had returns because of mismatched expectations. For high-drain tools or flashlights, go with the higher-capacity variants (usually 3000mAh or up)—they handle sustained loads better than the base capacity options.
Payment is typically 30% deposit and 70% before shipment via T/T, though we've done L/C for larger orders over $10k. Shipping documents include the COA, TDS, and the UN38.3 test report—make sure your forwarder expects the lithium battery label, or it can hold customs for a day or two. We pack them in individual sleeves inside anti-static trays, but the 9V format requires a different box since the terminals are exposed.
The nominal voltage is 3.7V, and charging voltage hits 4.2V±0.05V—so it pairs well with standard Li-ion chargers. Not suitable to devices that need a constant 1.5V output unless you add a regulator, which some buyers don't anticipate.
We offer these in 18650, D size, AA, AAA, and 9V formats. So you can pick the exact shape that fits your device, and we can also customize dimensions if you need something specific.
Lead time is usually around 15-20 working days for standard orders, and our MOQ for custom sizes is 500 pieces per model. If you need less, we can check stock on standard sizes.
Yes, we can share all those certificates—CE, ROHS, MSDS, and UN38.3—right away. Just ask, and we'll send them over so you can verify compliance before ordering.
It varies depending on the capacity you choose, but typically our 18650 cells support up to 15A continuous discharge. Let me know the mAh you need, and I'll give you the exact spec.
Store them in a cool, dry place between -20°C and 45°C, ideally at around 50% charge. Avoid extreme temps and direct sunlight, and keep them in their original packaging or a non-conductive case.
My experience with this purchase was primarily positive, focusing on the logistics and service aspects. The shipping was remarkably fast and efficient. The package arrived well ahead of the estimated delivery window, which was a pleasant surprise. It was securely packaged with appropriate protective materials, ensuring the battery arrived in perfect condition without any signs of damage from transit. The tracking information provided was accurate and updated regularly, allowing me to monitor its progress with ease. Regarding service, the communication from the seller was prompt and professional. Any preliminary inquiries I had were answered clearly and in a timely manner. The overall transaction was smooth and hassle-free. The product itself was as described, arriving with the stated certifications clearly visible. The packaging was professional and included all necessary documentation. This efficient logistical handling and reliable customer service made the purchasing process very straightforward and satisfactory.
Xcellent experience from start to finish. The shipping was incredibly fast, arriving well before the estimated delivery date. Everything was packaged securely with no signs of damage. The battery itself feels solid and well-made, with a good weight to it. The terminals and casing look precise. Customer service was responsive when I had a pre-shipment question, providing clear and helpful information promptly. A very smooth transaction overall for a certified component.
Upon receiving my order, I was thoroughly impressed by the exceptional shipping speed. The package arrived far sooner than the initial estimated delivery date, which was a wonderful surprise. Everything was packaged securely with ample protective materials, ensuring the product arrived in perfect condition without any dents or damage to the box. The quality of the battery itself seems outstanding upon initial inspection; the build feels solid and the specifications listed appear accurate. The customer service team was also very responsive when I had a pre-sale inquiry, providing clear and helpful information promptly. Ultimately, the overall experience from ordering to delivery was seamless and highly satisfactory. I would certainly consider purchasing from this seller again in the future based on this positive interaction. The combination of fast logistics, apparent high quality, and good service support makes this a recommended supplier for such components.
Very satisfied with the overall experience. The shipping was remarkably fast, arriving well ahead of the estimated delivery window, which was a pleasant surprise. The packaging was secure and professional, ensuring the product arrived in perfect condition. Regarding quality, the battery feels solid and well-constructed, with the certifications clearly marked, which provides a sense of trust and reliability. The communication from the seller was prompt and helpful, answering my pre-purchase questions efficiently. While I haven't tested the battery in a device yet, the initial impression based on build and documentation is extremely positive. The entire process, from ordering to delivery, was seamless and hassle-free. This level of service and apparent attention to detail in logistics and product presentation is commendable and makes me confident in the purchase. I would certainly consider this seller for future needs based on this smooth transaction.
Yikes, the shipping was incredibly slow. I was expecting a much quicker delivery based on the estimated timeline provided at checkout. It took nearly three weeks to arrive, which was quite disappointing as I needed the battery for a project. The tracking information was sparse and not updated regularly, leaving me in the dark about its location for days on end. Once the package finally arrived, the packaging itself was adequate, but the prolonged wait was a significant inconvenience. Regarding the product quality, it seems decent upon initial inspection. The battery feels solid and well-constructed, with no visible defects or issues. The CE and ROHS certifications are clearly marked, which provides some assurance about safety and environmental standards. I haven’t had the chance to test its long-term performance in a device yet, but the build quality appears promising. The customer service experience was a mixed bag. When I inquired about the shipping delay, the response was polite but somewhat generic and didn’t offer a concrete solution or compensation for the inconvenience. They were prompt in replying to my email, which I appreciate, but the actual helpfulness of the support could be improved. Overall, while the battery itself seems to be of acceptable quality, the logistical problems and somewhat lacking service detract from the experience. I hope future orders will have better shipping management.
Rapid delivery was the first thing that impressed me. The package arrived well ahead of the estimated schedule, which was a fantastic start. Regarding the product itself, the build quality feels solid and robust. The battery has a substantial heft to it, suggesting good internal construction, and the casing shows no flaws or imperfections. The seller’s service was equally commendable; communication was clear and prompt, answering my pre-purchase questions without delay. The item was securely packaged, arriving in perfect condition with all necessary documentation clearly visible. Overall, this was a very smooth transaction from start to finish, with no issues encountered at any point. The combination of efficient logistics, apparent high quality, and responsive support makes this a purchase I am completely satisfied with and would not hesitate to repeat in the future for similar needs.
Arrived much faster than the estimated delivery window, which was a very pleasant surprise. The packaging was secure and professional, showing clear attention to detail for safe transit. Regarding the product itself, the build quality feels solid and robust, exactly as described. The certification markings are clearly visible and lend confidence. My initial interactions with the seller were prompt and helpful when I had a pre-shipment query. Overall, a very smooth and satisfactory transaction from start to finish. The efficiency of the logistics and the apparent quality of the item have made this a positive experience. I would certainly consider purchasing from this vendor again based on this order.
Wow, the shipping was incredibly fast and efficient. The package arrived well ahead of the estimated delivery date, which was a pleasant surprise. Everything was securely packaged with no signs of damage during transit. The quality of the battery itself seems excellent upon initial inspection; it feels solid and well-made, with clear and professional labeling including the certifications mentioned. Customer service was also responsive when I had a pre-shipment inquiry, providing clear and helpful information promptly. Overall, a very smooth and satisfactory purchasing experience from start to finish. The product arrived in perfect condition and appears to be of high quality, exactly as described. The logistical handling was flawless, and the support team was courteous and professional. I am very pleased with this transaction and would confidently recommend this seller based on the seamless service and the apparent quality of the item received. The attention to detail in packaging and the speed of fulfillment really stood out, making the entire process hassle-free.
