Single battery voltage: 3.7VNominal voltage after the battery pack is assembled: 3.7VSingle battery capacity: 3500mAhBattery combination: 1 string and 1 parallelBattery voltage range after combination: 3.0V~4.2VBattery capacity after combination: 3500mAhBattery pack power: 12.95WBattery pack size: 4.6*66.5*100mmMaximum discharge current: <3.5AInstantaneous discharge current: 7A~10.5AMaximum charging current: 0.2-0.5CCharge and discharge times: >500 times1. With more than 12years' experience and more than 600 skilled staff serve you.2. Factory ISO9001:2015 approved and most products comply with UL,CB,KC standards.3. Wide range of production line covers Li-polymer battery,Lithium ion battery, and battery pack for your various demand.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 availableQ4. 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 defectivebatch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.