Why is the capacity of some batteries not compatible with the capacity of a single cell? This is because the coding capacity of our lithium batteries is the actual capacity, and the capacity of a single cell is the nominal capacity, so the capacity of a single cell may not match the capacity of the coding. During the manufacturing process of the battery, the actual capacity of the battery cannot be completely consistent due to technological reasons. Through a certain charge and discharge test, the process of classifying the battery according to the capacity is called capacity division. The lithium battery coding is to print the battery information on the surface of the battery, that is, to give the battery an ID card. Lithium-ion battery coding content includes basic battery information such as manufacturer, model, production date, voltage, capacity, energy, production batch number, and battery QR code. Buyers should pay attention to the coding information when buying batteries.Q1. Can I have a sample order for Battery? A: Yes, we welcome sample order to test and check quality. Q2. What about the lead time? A:Sample needs 5-10 days, mass production time needs 25-30 days. Q3. Do you have any MOQ limit for Battery? A: Low MOQ, 1pc for sample checking is available Q4. How do you ship the goods and how long does it take to arrive? A: We usually ship by UPS, TNT... It usually takes 3-5 days to arrive. Airline and sea shipping also optional. Q5. How to proceed an order for Battery? A: Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order.Fourthly We arrange the production. Q6. Is it OK to print my logo on Battery? A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample. Q7: Do you offer guarantee for the products? A: Yes, we offer 1-2 years warranty to our products. Q8: How to deal with the faulty? A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%. Secondly, during the guarantee period, we will send new batteries with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation. 