The sales rep I worked with was Eric and I have been very impressed with his communication and level of service. He was always very prompt to reply to questions I had, provided many options, and never pressured me into a purchase. Prior to purchase, complete cell specs were provided including capacity test results. Once a decision was made and cells purchased, pictures of the cells inside their shipping boxes were provided along with shipping tracking information (UPS tracking number that becomes valid once UPS takes possession in arrival country). During the long 2 month (8 week) transit time from China, Eric was in contact periodically providing logistics information relating to the arrival of the batteries by ship to port. After delivery, Eric once again reached out to ensure I was happy with my delivery and that everything was in order. The most recent cells I ordered came with stickers indicating date of testing and capacity results. QR codes were intact and scanned as valid. The prices are VERY competitive and service outstanding - highly recommended!

I have been working with DSEnergy for three years, starting with purchasing cylindrical cells, then prismatic cells, and now wall-mounted batteries. Throughout this time, their service has been exceptional. One person who has particularly impressed me is Eric from the sales team. He has always been quick to answer any questions I have about the products. His professionalism and responsiveness have made every transaction smooth and efficient. On one occasion, we had a minor issue where just one battery was faulty. Eric immediately took responsibility and resolved the issue without hesitation, even replacing the battery in our next order. The batteries we receive from DSEnergy are always in perfect condition. Each one comes with an actual capacity label and a detailed capacity report, which gives us confidence in their quality and reliability. Overall, I highly recommend DSEnergy to anyone looking for a trustworthy and professional lithium battery supplier!

We’ve had a great experience working with DSEnergy, and we truly appreciate their professionalism and reliability. The quality of their lithium batteries and energy storage products is consistently excellent, and they’ve become one of our most trusted suppliers in recent years. I’d especially like to thank Mia, who has been very helpful, responsive, and supportive throughout our cooperation. Her communication is always clear and efficient, which makes everything smooth and hassle-free. We look forward to continuing this successful partnership for many years to come.

Over the past five years, our collaboration with DSEnergy has been exceptionally pleasant. Throughout our partnership, we have consistently enjoyed high-quality products, reliable delivery, and outstanding customer support. Your LiFePO4 cells and lithium battery solutions are efficient, durable, and meet the highest industry standards. What sets DSEnergy apart is your commitment to innovation and professionalism. Your team is always highly responsive and willing to go the extra mile to ensure smooth transactions and provide technical support. We greatly value the transparency and trust we have built over the years, making DSEnergy an extremely important long-term partner in our business.

We’ve been working with DSEnergy for several years, and they have always been a dependable and professional partner. Their lithium batteries and home energy storage systems are of excellent quality and meet the needs of our market very well. The team is knowledgeable, responsive, and always willing to support us with fast service and flexible solutions. DSEnergy has helped us grow our business steadily, and we truly appreciate their commitment and reliability. Looking forward to many more years of successful cooperation!

I have been purchasing 304Ah LiFePO4 cells from Ella at DSEnergy, and the experience has been excellent! She is highly professional, provides clear details on certifications and testing, and ensures smooth communication. The cells perform exceptionally well with minimal voltage deviation and great consistency. My Zketech tester shows a steady 305Ah at 3.5V, proving their high quality. I recently ordered 2,000 more cells at a competitive price. Ella is patient, responsible, and meticulous in handling orders, logistics, and after-sales support. I highly recommend DSEnergy and Ella as a reliable lithium battery supplier!

I installed DSEnergy's 10kWh wall-mounted battery in my home, and it's been a fantastic addition. The design is modern and space-saving, fitting perfectly on my wall. It integrates seamlessly with my solar panel system, helping me store excess energy and reduce my electricity costs. During a recent power outage, the battery kicked in immediately, keeping my essential appliances running. The installation was straightforward, and DSEnergy's support team was very helpful. I'm extremely satisfied with this product.

I purchased 5pc 48V 50Ah wall-mounted batteries from Eric. Upon receiving them, I tested the capacity and was pleasantly surprised to find that the actual capacity was slightly higher than the rated value. After using the batteries for about a year and a half, I can confidently say they have performed flawlessly with zero issues. The quality and reliability have truly exceeded my expectations. If needed, I’m more than happy to perform another round of capacity tests to demonstrate their excellent performance. Highly recommended for anyone looking for dependable energy storage solutions.

We have received the 2000 pieces of LTO 40Ah batteries from DSEnergy Mia. All the batteries have no visual defects on the positive and negative terminals and appear brand new. Each battery comes with a unique QR code, allowing our customers to easily access battery information. Additionally, the actual capacity data from pre-shipment testing is marked on each battery, facilitating accurate matching during battery pack assembly. Moreover, a detailed capacity data spreadsheet is provided, which is extremely useful and perfect for our needs.

I purchased some 12V 100Ah lithium batteries from DSEnergy, and my overall experience has been fantastic. The product quality and price are both outstanding. First, the packaging from DSEnergy is top-notch. The batteries arrived in a sturdy box with well-cushioned foam protection, ensuring that they remain intact even if the package is subjected to rough handling during transit. In real-world use, I power my ARB Classic fridge and Puma PD1006 air compressor with this battery in my truck. When paired with a high-quality DC-DC charger and a solar controller, it performs exceptionally well. I use it with the Redarc BCDC1225, allowing seamless charging from both the alternator and solar panels, which is very convenient. Additionally, the Puma PD1006 compressor draws 30A when running, and this battery handles it effortlessly. One of the standout features is the Bluetooth monitoring. The range is significantly better than most other Bluetooth devices. Even when the battery is stored in my truck bed with a cover, I can still check its status from 50 feet (about 15 meters) away. Overall, if you're looking for a high-quality yet affordable LiFePO4 battery, I highly recommend DSEnergy's products and service!