3S LiPo Batteries

3S LiPo batteries (3 cells connected in series) offer a nominal voltage of 11.1V (fully charged approx. 12.6V). In this category, you will also find 3S LiHV batteries, which charge to a higher voltage (approx. 4.35V/cell, meaning ~13.05V for the pack), offering slightly more energy. For years, the 3S voltage was one of the most popular and versatile in the RC modeling world, providing a solid power increase compared to 2S.

Although partially replaced by 4S and 6S in the FPV world for 3-5 inch drones, 3S packs (both standard LiPo and LiHV) still find wide application:

• In some 3-4 inch FPV drones: Especially in lighter freestyle or cinematic builds where extreme power is not the priority.
• In RC airplanes: A very popular power source for park flyers, trainers, gliders, and smaller aerobatic models.
• In RC cars and boats: In many 1:10 scale and smaller models.

The capacities of 3S batteries vary widely, from approx. 450mAh to 2200mAh and more, depending on the application. They are usually equipped with an XT30 (lower capacities) or XT60 (higher capacities) connector. They always have a 4-pin JST-XH balance connector. Remember that LiHV packs require a charger that supports this mode. We offer 3S packs from proven brands like GensAce/Tattu.

When choosing a 3S LiPo or LiHV battery, matching it to the specific model and its requirements is key:

• Voltage Compatibility: Check that your model's electronics (ESC, FC, motors - especially KV) are rated for 3S voltage. For standard LiPo, this is max 12.6V; for LiHV, max approx. 13.05V. Using LiHV in equipment not rated for the higher voltage may lead to damage.
• Cell Type (LiPo vs LiHV): If choosing LiHV, ensure your charger has the appropriate charging mode. LiHV packs might offer slightly longer flight times or more punch for the same capacity and 'C' rating, but require careful usage.
• Capacity (mAh): Select the capacity based on the model type and desired run/flight time. Lighter packs (e.g., 450-850mAh) work well in agile drones or small planes. Larger capacities (e.g., 1300-2200mAh) provide longer operation time in larger models but at the cost of higher weight.
• Discharge Rate (C rating): Choose a 'C' rating adequate for the maximum current draw of your model. High-performance FPV drones or fast RC cars will require a higher C (e.g., 50C+) than gently flying gliders.
• Connector: Check the connector type on your model (ESC or power distribution) and choose a battery with a matching plug (XT30, XT60, Deans, etc.).
• Weight and Dimensions: Measure the available space in the model and compare it with the battery dimensions. Weight significantly impacts the balance and flight/driving characteristics.

3S batteries, both LiPo and LiHV, offer a good compromise between power and weight for many applications in RC modeling.

Safety when handling LiPo batteries is absolutely paramount! Improper handling poses a real fire risk. Always follow these rules:

• Charging: ALWAYS use a microprocessor charger designed for LiPo with balancing function (balancing is mandatory for 3S and higher!). NEVER leave charging batteries unattended. Charge in a fire-resistant location (e.g., in a LiPo Safe bag, on a ceramic/metal surface). Never charge damaged, puffed, or deformed packs. Use correct charger settings (cell count=3, LiPo/LiHV type). Recommended charge rate is 1C unless the battery manufacturer explicitly allows higher.
• Usage: Avoid over-discharging cells (generally don't go below 3.3V-3.5V per cell under load, resting voltage ~3.7V for LiPo, slightly higher for LiHV). Monitor battery voltage (e.g., via telemetry, OSD, timer). Land/stop driving when voltage is low. Protect batteries from physical damage and punctures.
• Storage: For longer storage (several days or more), charge/discharge LiPos to storage voltage - approx. 3.80-3.85V per cell. Use the 'Storage' function on your charger. Store in a cool, dry place, ideally in a special LiPo Safe bag or ammo can. Do not store fully charged or fully discharged for long periods.
• Disposal: Never throw LiPos in regular trash! Discharge them fully (e.g., using a light bulb or charger's discharge function to a low voltage) and take them to a designated battery recycling facility.

If you have any doubts about the safe use of 3S LiPo batteries, please contact us. We also offer special LiPo Safe bags (available in another category) to increase storage and transport safety.

Need advice regarding 3S LiPos? Write to us: Contact Us