This content has been automatically translated from Ukrainian.
The battery affects the duration of the flight, the dynamics, and the stability of the equipment's operation. Before buying a battery for FPV, it is worth understanding the main parameters of lithium-polymer batteries and the rules for handling them.
Main Parameters
Number of Cells (S)
The designation 3S, 4S, or 6S indicates the number of cells connected in series. The nominal voltage of one LiPo cell is 3.7 V, and when fully charged, it reaches 4.2 V. More cells mean higher voltage, but the electronics and motors must be designed for it.
Capacity
Capacity in mAh determines the energy reserve. It increases flight time but adds weight, so a balance between duration and dynamics is needed.
Discharge Current (C-rating)
This parameter shows the current the battery can deliver. The maximum current equals the capacity in Ah multiplied by the C value. A too low rating leads to voltage drops and overheating.
What to Pay Attention to When Choosing
- matching dimensions and weight to the frame;
- type of connector (e.g., XT60 or XT30) and quality of wiring;
- real, not just claimed, discharge current;
- presence of a balancing connector;
- manufacturer's reputation and warranty.
Operating Rules
- Charge the battery only with a LiPo charger with balancing.
- Do not discharge below 3.3–3.5 V per cell.
- Do not leave the battery unattended while charging.
- Do not use swollen or damaged batteries.
- After flight, allow the battery to cool down.
Storage
For long-term storage, set the voltage to about 3.8 V per cell. Keep batteries in a dry, cool place, preferably in a fireproof container or special bag. Avoid direct sunlight and do not keep batteries near heaters. Additionally, during prolonged downtime, check the voltage every few months.
Common Mistakes
- over-discharge or over-charge;
- charging without balancing;
- storing a fully charged battery;
- ignoring swelling and mechanical damage.
Conclusion
Choosing the right voltage, capacity, and discharge current along with safe operation extends the battery's lifespan. Additional information and a catalog can be viewed at https://btry.energy/c/akumulyatory-dlya-fpv-droniv. Quality power supply is the key to stable flights. Take care of the battery responsibly so that every launch is safe, and the equipment operates reliably, efficiently, and without unpleasant surprises!
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