1. Introduction
This user manual provides essential information for the safe and effective use of your RoaringTop 350mAh 2S 7.4V LiPo Battery Pack. Please read this manual thoroughly before using the battery to ensure proper operation, maximize battery life, and prevent potential hazards.
2. Safety Precautions
WARNING: Lithium Polymer (LiPo) batteries can be dangerous if not handled correctly. Failure to follow these instructions can result in fire, personal injury, and property damage.
- Always charge LiPo batteries on a fire-resistant surface and away from flammable materials.
- Never leave charging batteries unattended.
- Use only chargers specifically designed for LiPo batteries and ensure the charger settings match the battery's voltage and cell count (2S / 7.4V).
- Do not overcharge or over-discharge the battery. Overcharging can lead to fire, and over-discharging can permanently damage the battery.
- Do not puncture, disassemble, short-circuit, or expose the battery to extreme temperatures (above 60°C / 140°F or below 0°C / 32°F).
- If the battery swells, smokes, or shows any signs of damage, immediately discontinue use, place it in a fire-safe container, and dispose of it properly.
- Keep batteries out of reach of children and pets.
3. Product Overview
The RoaringTop 350mAh 2S 7.4V LiPo Battery Pack is designed for various RC applications, offering high performance and reliability. It features premium-grade materials and advanced manufacturing processes.
Image: RoaringTop 350mAh 2S 7.4V LiPo Battery Pack. The image shows the compact grey soft-case battery with red and black power wires terminating in a red JST-SYP-2P plug, and thinner white, black, and red balance wires terminating in a white JST-XH plug.
Key Features:
- Premium-grade material from Japan, patented electrolytes and ultrasonic welding for low-resistance, high-reliability, and light-weight properties.
- High quality consistency and power density up to 230Wh/kg.
- Longer cycle life compared with most standard batteries.
- Ultra-high voltage under load, flat discharge curve, excellent performance at low temperature and high discharge rate.
4. Setup and First Use
- Inspect the Battery: Before first use, carefully inspect the battery for any physical damage, swelling, or exposed wires. Do not use if damaged.
- Initial Charge: It is recommended to fully charge the battery before its first use. Use a compatible LiPo charger and set it to 2S (7.4V) and 350mAh capacity. Connect the main discharge plug (JST-SYP-2P) and the balance plug (JST-XH) to the charger.
- Connect to Device: Once charged, connect the JST-SYP-2P discharge plug to your RC vehicle or device. Ensure the polarity is correct.
5. Operating Instructions
- Discharge Rate: This battery has a 25C discharge rate. Ensure your application's current draw does not exceed the battery's continuous discharge capability (350mAh * 25C = 8.75 Amps).
- Voltage Monitoring: Always monitor the battery voltage during operation. Do not allow the voltage to drop below 3.0V per cell (6.0V for a 2S pack) to prevent irreversible damage. Many RC devices have low-voltage cutoffs.
- Temperature: Avoid operating the battery in extremely hot or cold conditions. Optimal operating temperature is between 0°C and 50°C (32°F and 122°F).
6. Maintenance and Storage
- Charging: Always use a balance charger to ensure all cells are charged equally. Charge at a rate of 1C (350mA) for optimal battery life.
- Storage: For long-term storage, charge the battery to a storage voltage of 3.8V-3.85V per cell (7.6V-7.7V for a 2S pack). Store in a cool, dry place, ideally in a LiPo-safe bag or container.
- Disposal: Do not dispose of LiPo batteries in regular trash. Fully discharge the battery (e.g., using a discharge function on your charger or a resistive load) until its voltage is near 0V, then submerge it in saltwater for 24 hours. After this, it can be disposed of at a local battery recycling center.
- Cleaning: Keep the battery and connectors clean and free of dirt or debris.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Incorrect charger settings; Damaged battery/charger; Loose connections. | Verify charger settings (2S/7.4V, LiPo mode); Check all connections; Inspect battery for damage. |
| Short flight/run time | Battery not fully charged; Battery degradation; High current draw from device. | Ensure full charge; Check battery health (internal resistance); Verify device's power requirements. |
| Battery swelling | Overcharging; Over-discharging; Physical damage; Overheating. | Immediately discontinue use and safely dispose of the battery. Do NOT attempt to charge or use a swollen battery. |
8. Specifications
- Capacity: 350 mAh
- Voltage: 2S / 2 Cell / 7.4 V
- Discharge Rate: 25C
- Weight (including wire, plug & case): 21 g
- Dimensions (H x W x L): 14 x 20 x 42 mm (0.55 x 0.79 x 1.65 inches)
- Balance Plug: JST-XH
- Discharge Plug: JST-SYP-2P
- Battery Cell Composition: Lithium Polymer
- Recommended Use: Remote Control Vehicle
9. Warranty and Support
RoaringTop stands behind the quality of its products. For warranty claims or technical support, please contact RoaringTop customer service through the retailer where the product was purchased or visit the official RoaringTop website.
Please have your product model number (350mAh 2S 7.4V LiPo Battery Pack) and purchase details ready when contacting support.
For more information, you may visit the RoaringTop Store on Amazon.