Specification 6.4V2S 650mAh LiFePO Battery EL4.5-3P female P-TO-R THFC1450BA22 LiFePO 14500 2S Battery Pack Battery Capacity: 650mAh Battery Voltage: 6.4V/2S Constant Discharge Rate: 15C Size: 52*28.5*14.5mm /2.05*1.12*0.57in Weight: 32g /1.13oz Charge Voltage: 7.2V Charge Rate: 0.5-1A EL4.5-3P female end (Positive TO Round hole, Negative TO Square hole) Tips: Please allow 1-3cm error of measurement. Photo color might be a little different from the actual product due to color display of different monitors. Product Includes: 1 x Battery or 1 x USB Charging Cable Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!