Analysis of specifications of drone batteries

1.3S, 4S: The battery pack is composed of many batteries connected in series, this number represents this. If the battery pack is classified as a 3S battery pack, then it has three independent batteries connected in series in the battery pack, and the nominal voltage of each battery is 3.7 volts. The total voltage of the battery pack is then listed as 11.1 volts. The voltage of the 4S battery pack is 14.8 volts and so on (four batteries x 3.7 volts u003d 14.8 volts) 2. Capacity: the capacity rating of the battery represents its output power, or the length of time before the battery gets power from the battery at a given rate Reach the cut-off voltage or discharge. The faster it gets power from the battery, the shorter it will continue. Many times, our battery capacity is listed in milliampere hours (mAh) instead of ampere hours (Ah). This is just a conversion of the metric system to a smaller unit, 1 ampere hour u003d 1,000 milliampere hour, so 2.2Ah is 2,200mAh. UAV battery 3. Discharge rating: C represents the rate at which the battery can be discharged in relation to its maximum capacity. If the battery is discharged at a rate higher than the discharge rating, the battery may be damaged, or worse, may cause safety hazards such as fire. If the discharge rating of the battery is 15C, it means that the maximum power that can be obtained at one time is equal to 15 times its capacity. Using the example of a battery with a capacity of 2,200mAh, this means that the maximum current you can safely get from the battery is 15x2,200u003d33,000 mA (or 33 amps). The discharge level listed on the battery label is based on what the manufacturer believes the battery pack can solve during the discharge process, without reducing the performance of the battery pack. These discharge levels are sometimes incorrectly referred to as C levels. A battery pack with a higher discharge rate has a lower internal resistance (IR), which is a good thing. Many batteries supply two discharge ratings, such as 30C/60C. These represent continuity and burst levels. The first number means that it will continue to support 30C discharge, and for short pulses (usually less than 15 seconds) it should support 60C. This allows up to 60C to appear during quick throttle changes, but it should not be what you often use. If you want a higher current level, please buy a battery pack with a higher capacity and a higher rated C number. 4. Internal resistance: indicates the internal resistance of the battery or battery pack. Some chargers will detect the internal resistance of each battery in a battery pack during the charging cycle. As the internal resistance increases, the battery performance decreases. Therefore, as a general rule, the lower the resistance, the higher the performance the battery will supply. Generally, batteries with high discharge capacity have lower internal resistance. The battery pack label is usually the manufacturer's attempt to put its product in the best condition. The small-gauge wires of battery packs and connectors rated at 65C will not be able to truly solve this current amount. Shop carefully and use the best battery you can afford. To improve the drone flight experience. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: How to discharge lithium batteries