903480 2800mAh 7.4V 25C 2S Li-Po Battery for FT009 UDI902 RC Boat (8 Plug Types)

Description

Battery model: 903480 (2S Hard Case)

Capacity: 2800mAh

Voltage: 7.4V (2S Li-Po, 2 cells in series)

Charge limit voltage: 8.4V (4.2V per cell)

Discharge rate: 25C (High discharge for RC boats)

Battery type: Li-Polymer (Hard case)

Dimensions: 86 × 36 × 20mm

Weight: 110g

Compatible with: FT009, UDI902 RC boats and similar RC vehicles

Available plug types (8 variants): JST Plug, SM Plug, EL-2P Plug, KET-2P Plug, T Plug, SM-4P Plug, Xiaotiangong Plug, XT30 Plug

Package include: 1 x battery pack (plug type as selected)

Power up your RC boat with this 903480 2800mAh 7.4V 25C 2S Li-Po battery. Designed for FT009, UDI902 and similar RC boats, the 25C discharge rate provides the burst power needed for high-speed runs and sharp turns. The hard case design protects the cells from water and impacts. The compact 86×36×20mm size fits most RC boat battery compartments. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE and RoHS certified.

⚠️ Important — Choose the correct plug type for your device: This battery is available in 8 different connector versions. Please check your original battery’s plug type before ordering. The plug types are NOT interchangeable. This is a 2S 7.4V pack — NOT compatible with 1S (3.7V) or 3S (11.1V) systems.

Available plug options:

• JST Plug — Standard 2-pin connector for many RC devices
• SM Plug — Small 2-pin connector common on micro RC
• EL-2P Plug — 2-pin locking connector
• KET-2P Plug — KET 2-pin connector
• T Plug — Large Tamiya connector, standard for many RC cars and boats
• SM-4P Plug — 4-pin SM connector
• Xiaotiangong Plug — Small Tamiya connector
• XT30 Plug — 30A rated connector for high-current applications

Charging Instructions: Use only a charger designed for 2S (7.4V) Li-Po batteries. Set charger to Li-Po mode with 2S selected — full charge voltage is 8.4V. Recommended charge current: 2.8A (1C). Never leave the battery unattended while charging. Do not discharge below 6.0V (3.0V per cell). Store at 40-60% charge at room temperature.

Battery Care Tips: Allow the battery to cool before recharging after use. Avoid exposing the battery to water — the hard case provides protection but is not waterproof. If the battery swells, becomes hot, or shows any damage, stop use immediately and recycle properly.

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