2S 3850mAh LiPo Battery - 7.4V 28Wh for Mini Drones, FPV Whoops, Small RC Planes/Cars - XT30 Connector

2S 3850mAh LiPo Battery - 7.4V 28Wh for Mini Drones, FPV Whoops, Small RC Planes/Cars - XT30 Connector

Features

• Optimized Form Factor: The 85x30x50mm dimensions offer a high capacity in a slim, space-efficient package ideal for built-in battery compartments.
• Excellent Energy-to-Weight Ratio: At 139g, it provides a high energy density (~204 Wh/kg), favoring portable applications.
• Stable Discharge Performance: LiPo chemistry ensures a relatively flat voltage curve during discharge, providing consistent power.
• Custom Voltage Platform: The 7.38V nominal voltage may be optimized for specific device electronics to improve efficiency or circuit design.

Specifications

Applications

• Portable Consumer Electronics: High-capacity power for handheld gaming devices, portable speakers, or specialized electronic gadgets.
• Compact Lighting Equipment: LED video lights, camera flash units, or work lights requiring slim battery packs.
• Mini/Micro Drones & FPV Equipment: Smaller drones or FPV systems where the 7.38V specification meets specific power requirements.
• Custom DIY Projects & Robotics: Power source for custom-built electronics, small robots, or IoT devices where standard voltages are not optimal.
• Backup Power Solutions: Uninterruptible power supply (UPS) for low-power networking or computing devices.

Warnings & Precautions

Charging

• Use a LiPo Charger: ONLY use a computerized LiPo balance charger set to 2S mode.
• Verify Settings: Confirm charger settings: LiPo, 2S (or 7.4V), Current ≤ 3.9A (1C) before starting.
• Supervised Charging: Charge in a safe, fire-resistant location. Never charge unattended.
• Balance Charge: Always use the JST-XH balance port during charging to maintain equal cell voltage.
• Stop if Abnormal: Disconnect immediately if the battery swells, gets hot, smells, or shows any damage.

Discharging

• Voltage Limits: DO NOT discharge below 6.0V (3.0V per cell). DO NOT charge above 8.4V (4.2V per cell).
• Temperature: Operate within -10°C to 60°C. Ideal operating range is 20°C to 45°C. Allow to cool before charging.
• Physical Damage: Inspect before each use. Do not use if punctured, deformed, leaking, or with damaged wires.
• Short Circuit Prevention: Keep terminals clean and insulated. Always use connector caps when not in use.
• Environment: Avoid exposure to water, rain, and extreme temperatures.

Storage

• Storage Voltage: For storage longer than one week, maintain battery at 3.8V - 3.85V per cell (7.6V - 7.7V total).
• Storage Conditions: Store in a cool, dry place (10°C - 25°C is ideal) inside a LiPo safety bag or fireproof container.
• Transport: Protect terminals from shorting. For air travel, this sub-100Wh battery generally complies with carry-on regulations when properly installed or protected.