Overview of the Lishen LR2170SZ Battery
The key feature of the Lishen LR2170SZ modification is its high capacity and low peak current. These cells are used in electric sights, field monitors, laser devices, and backup power equipment. Battery packs based on these cells can also be used for FPV goggles through special adapters. The main purpose of these elements is to provide maximum operating time for various portable devices during field operations or testing.
The production facilities of Lishen are located in China. It is one of the largest manufacturers of battery cells. The company cooperates with such corporations as Tesla, Volkswagen, and BMW. Reliability and durability are the core principles of Lishen, which the company proves year after year by expanding its production capacity and entering new markets with its products.
Main characteristics of Lishen LR2170SZ:
- The main feature of these cells is their high capacity. 5000 mAh allows for creating very high-capacity battery packs. For example, a 3S8P configuration can reach a total capacity of 40,000 mAh.
- The nominal voltage is standard, as with most cells on the market, and equals 3.6 V.
- The peak discharge current is 15A, which is considered a relatively modest indicator compared to many competitors.
Before being used in a battery pack, the cells undergo internal quality control. After production, the cells are charged and tested on specialized stands. The most popular pack configurations using these cells are 3S2P, 3S3P, and 3S8P.
During the manufacturing process, battery packs built with LR2170SZ cells include a BMS board that monitors the charge level of each individual cell and balances them, ensuring stable and even operation of the entire battery.
Buy the Lishen LR2170SZ battery in the official BTRY.ENERGY store
In our official store, all products come with certificates of conformity. When placing an order, the customer receives 100% original and high-quality products. Our managers will help you choose the right option if necessary and arrange the order for the nearest available delivery.
▸Frequently Asked Questions (FAQ)
- What is C-rate (discharge rate)?
C rate — is a technical indicator of current output. It defines how quickly a lithium-ion battery can safely deliver or receive charge relative to its capacity. For FPV drones and FPV quadcopters, this parameter is important because it affects the drone’s maneuverability and its ability to meet power demands. If we take our Lishen LR2170LA lithium battery with a peak discharge current of 45A as an example, the approximate C-rate is about 11C. This means the permissible load is roughly 11 times the capacity of 4000 mAh. In practice, a high C-rate ensures stable power delivery and reliable operation for combat FPV drones.
- What is the difference between Li-ion and Li-Po?
First of all, both types are lithium batteries, but they have different internal chemistry. What can be said about lithium-ion? Li-ion batteries provide energy for a longer period because they have a lower C-rate. Yes, they are not ideal for FPV racing, but on the front line—where drones require longer flight time, such as reconnaissance FPV drones—they are the most suitable option. Now about Li-Po. Lithium-polymer (Li-Po) batteries are soft-pack cells whose main advantage is a higher maximum discharge rate, which is suitable for aggressive flying. This type of battery is more suitable for people who are interested in drones as a hobby, which is more common in Western countries.
- What does the 6S2P configuration mean?
There are two types of connections: series and parallel. The number and combination of these connections are called a configuration. For example, in our pack built with Lishen cells, the configuration is 6S2P, where 6S stands for series connection and 2P stands for parallel connection. For drones, the base configuration is 6S (6 Series). Six series connections determine the voltage: with each cell having a nominal voltage of 3.6 V, the total voltage reaches approximately 22 V (rounded), which is required for powerful UAV systems. Then, depending on the drone used, the battery capacity is increased by adding parallel connections. The designation 2P (2 Parallel) means a parallel connection that doubles the capacity and current output: if one cell has 4000 mAh, then 2P = 8000 mAh.
- How should batteries be charged properly?
This is indeed an important question. What does “proper charging” mean? Proper charging is the even distribution of energy across the cells, which helps avoid imbalance within the battery and prevents overheating and overload. To ensure proper charging, battery chargers were created. These devices usually have standard XT60 or XT30 connectors, as well as a port for connecting a balance cable. All you need to do is connect the XT60 cable and the 6S balance cable from the battery to the charger, set the charging parameters required for a Li-ion battery, and wait until the charging process is complete.
- Where should batteries be stored?
The first thing you should know is do not store Li-ion batteries fully charged or fully discharged. The recommended storage voltage is provided by the manufacturer and is referred to as “Storage Voltage”, which usually means 3.7–3.8 V per cell. Storing batteries in the storage state minimizes capacity degradation. Now let’s talk about storage conditions, specifically the temperatures at which batteries should be kept. Li-ion chemistry requires a cool, dry environment (10–20°C) — not too cold or too hot. This means keeping them away from direct sunlight and heat sources, but also not in a refrigerator. It is also important to understand the consequences of unfavorable thermal conditions: Cold temperatures can reduce maximum capacity and accelerate battery wear. High temperatures can cause gas formation inside the cells, leading to overheating or, in the worst case, a battery explosion.
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