1. Good quality and price: We make a best blance between the quality and price, each battery are used high quality Li-ion cells(Japan) and control motherboard. What's more, you may experience real reasonable price and absolutely good quality at Our Shop; 2. Best Service: You want it, we got it. We have a dedicated team of customer service executives who will tell you what you want to know and give your the best shopping experience. we believe that our customers not only buy our products, but also buy our services; 3.Factory Outlet: We sell each laptop battery directly from our factory to eliminate that the battery be stored too long to have an adverse effect on battery performance; 4. Your satisfaction: Our customers' 100% satisfaction is our top objective and the power to our development, in addition, all products at our website have One Year Long Warranty, 30-day money back! 5. Our Quality: We believe that our customers should receive the highest quality Dell Inspiron 1720 Replacement Battery. Our battery for Dell Inspiron 1720 passed the CE, UL, ROHS, and ISO9001 certifications. It can full charge/discharge at least 300-500 times.