SPIDER Automation | NCR18650GA 7.4V 3300mAh Li-ion Battery Pack | 2S1P
The NCR18650GA 7.4V 3300mAh Li-ion Battery Pack is a rechargeable lithium-ion power source designed for equipment requiring a 7.4V battery supply. It uses two NCR18650GA cells connected in a 2S1P configuration, providing a higher output voltage while maintaining the capacity of the individual series string.
This battery pack can be integrated into compatible portable electronics, custom battery-powered equipment, robotics projects and DC power systems. Its rechargeable construction makes it suitable for applications where a reusable battery supply is required.
Product Overview & Battery Configuration
The pack uses two lithium-ion cells connected in series. In a 2S1P arrangement, the voltage of the two cells adds together, while the amp-hour capacity remains the same as that of one cell or parallel string.
The resulting pack provides a 7.4V nominal output and a 3300mAh capacity. The battery must be charged using a compatible 2S lithium-ion charging system.
Technical Features & Functional Characteristics
- Rechargeable Li-ion Chemistry: Designed for repeated charging and discharging using an appropriate lithium-ion charging system.
- 2S1P Cell Arrangement: Two cells connected in series provide the required higher nominal voltage.
- 3300mAh Pack Capacity: Provides the stated capacity for compatible battery-powered equipment.
- NCR18650GA Cell Model: Uses the specified 18650 cell model.
- Stated 3C Rate: The supplied description identifies a 3C rate; the permitted continuous and peak current limits should be established from the pack specifications.
- Compact Battery Format: Suitable for integration into compatible equipment and custom battery-powered designs.
Electrical Configuration & Charging Requirements
This is a 2S lithium-ion battery pack. Its nominal voltage is 7.4V, and its fully charged voltage is 8.4V. Charging must be performed with a dedicated 8.4V CC/CV lithium-ion charger designed for a 2S pack.
A compatible 2S battery management system (BMS) should be used where required by the pack design to manage cell-level voltage limits and battery protection. The BMS does not replace the dedicated charger.
Applications
The battery pack is suitable for electronic and electrical systems specifically designed for a 7.4V nominal lithium-ion supply.
- Portable Electronics: Power source for compatible rechargeable electronic equipment.
- Robotics Projects: Battery supply for suitable small robotic platforms and electronic assemblies.
- Automation Prototypes: Suitable for compatible portable control and automation projects.
- DIY Electronics: Can be integrated into custom battery-powered electronic designs.
- Embedded Systems: Power source for compatible embedded equipment requiring a 2S Li-ion supply.
- Portable DC Equipment: Suitable for devices designed around a 7.4V nominal battery pack.
Package Contents
- 1 × NCR18650GA 7.4V 3300mAh 3C 2S1P Li-ion Battery Pack
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Rechargeable Battery Pack |
| Battery Chemistry | Lithium-Ion (Li-ion) |
| Cell Model | NCR18650GA |
| Nominal Pack Voltage | 7.4V |
| Full-Charge Voltage | 8.4V |
| Pack Capacity | 3300mAh |
| Cell Configuration | 2S1P |
| Number of Cells | 2 |
| Stated Discharge Rate | 3C |
| Charging Method | 2S Li-ion CC/CV charging |
| Recommended Charger Voltage | 8.4V CC/CV |
| Rechargeable | Yes |
Connection & Operating Recommendations
Correct charging and electrical integration are important for the safe operation and service life of a lithium-ion battery pack. Use a charging and protection arrangement specifically designed for a 2S Li-ion configuration.
- Use a Dedicated 2S Charger: Charge the pack using an 8.4V CC/CV lithium-ion charger. Do not use a 4.2V single-cell charger or a charger intended for a different battery chemistry.
- Use a Compatible 2S BMS: Select a BMS suitable for the pack’s cell configuration and actual charge and discharge requirements.
- Observe Load Current: Keep the connected load within the battery pack’s verified continuous and peak discharge limits.
- Check Equipment Voltage: Confirm that the connected equipment is designed to operate from a 7.4V nominal lithium-ion pack, including its voltage range from charged to discharged conditions.
- Maintain Correct Polarity: Match the battery positive and negative terminals with the equipment’s input connections.
- Avoid Short Circuits: Prevent exposed battery terminals or wiring from coming into contact with conductive objects.
- Use Suitable Wiring: Select wire, connectors and protection components according to the expected operating current.
- Store Appropriately: Keep the battery in a dry location away from excessive heat and direct sunlight.
