7.4V Cylindrical lithium battery product model: XL 7.4V 15400mAh 7.4V Cylinder lithium battery technical parameters (specific design according to customer requirements - voltage / capacity / size / line) Single battery model: 18650 Packing method:Industrial PVC heat shrinkable film .Voltage of single cell: 3.7V .Nominal voltage after battery pack combination: 7.4V .Capacity of single battery: 2.2ah .Battery combination mode: 2 string 7 parallel .Voltage range of battery after combination: 5.0V~8.4v .Battery capacity after combination: 15.4ah .Battery pack power: 113.96w .Battery pack size: 40*131*69mm .Maximum discharge current: < 15.4A .Instantaneous discharge current: 30.8a-46.2a .Maximum charging current: 0.2-0.5c .Charging and discharging times: ＞ 500 timesMeet the relevant national standards and requirements for batteries. All finished battery products are calibrated and tested before delivery. They can be used directly and normally.This battery is equipped with a power indicator, and there are three plugs. We can do all of these, and we can all implement them according to the specific requirements of customers. The battery can be added with a protective plate, The battery can design current; The battery can be designed with a magnification; The battery can be protected from overcharge and overdischarge; etc. . . As long as you have ideas, you can come to communicate with us, and we may be able to help you realize your ideas. What the market needs is innovation, and we also insist on innovation and effective innovation; on this innovation road, we need many partners to join in, maybe your products can innovate with us.