This content has been automatically translated from Ukrainian.
The lifespan of a battery depends not only on the quality of the cells but also on how it is charged. Those planning to buy drone batteries should familiarize themselves in advance with the charging modes and requirements for the charger.
Main charging principle
CC/CV method
Lithium polymer cells are charged in two stages. First, the device supplies a constant current (CC) until the cell voltage reaches 4.2 V. Then it switches to constant voltage (CV), and the current gradually decreases to a minimum value. Exceeding 4.2 V on a cell is dangerous.
Charging current
Typically, 1C is used, which is the current equal to the battery capacity. For a 1500 mAh battery, this is 1.5 A. If the manufacturer allows higher values, they are specified in the documentation. A lower current is gentler on the cells and extends their lifespan.
Charger modes
- Balance charge — charging with cell voltage balancing;
- Storage — bringing to a safe storage voltage, around 3.8 V per cell;
- Discharge — controlled discharge;
- Parallel charge — simultaneous charging of several batteries through a special board.
How to choose a charger
- Make sure the device supports LiPo and the required number of cells.
- Check if there is a balancing function.
- Evaluate the power: it determines the charging speed.
- Pay attention to overcharge and short circuit protection.
- Prefer models with voltage indication for each cell.
Safe charging rules
- charge on a non-flammable surface and under supervision;
- do not charge swollen or damaged batteries;
- always connect the balancing connector;
- do not leave the battery charging for a long time after completion;
- keep the battery away from flammable materials.
Common mistakes
- charging without balancing;
- using universal devices without LiPo support;
- excessive charging current;
- charging a heated or frozen battery.
Conclusion
Proper charging preserves the capacity and safety of the battery. Adhering to modes, balancing, and using a quality charger help extend the battery's lifespan. Additional information and a catalog can be viewed at https://btry.energy/c/akumulyatory-dlya-fpv-droniv.
Remember that investing in a reliable charger pays off quickly. It not only protects batteries from premature wear but also ensures the safety of your home. Always follow the instructions, and your flights will be long and as safe as possible for the equipment!
