Eztronics Corp GS300
Instruction Manual
Product: 4/5SC 2000mah NiMH Battery Pack
Model: GS300 Type 3 (3.6 v) Grass Shears Battery
Brand: Eztronics Corp
1. Introduction
This manual provides essential information for the safe and effective use of your Eztronics Corp 4/5SC 2000mah NiMH Battery Pack. This battery pack is specifically designed as a replacement for the Black & Decker GS300 Type 3 (3.6 volt) Cordless Grass Shears, model 387051-00. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of the product.
2. Product Overview
The Eztronics Corp 4/5SC 2000mah NiMH Battery Pack consists of three 4/5 Sub C NiMH cells configured to provide 3.6 Volts. It features a pre-attached connector for direct installation, eliminating the need for soldering.

Figure 2.1: Eztronics Corp 4/5SC 2000mah NiMH Battery Pack. This image displays the three individual 4/5 Sub C battery cells, wrapped in brown paper, connected in series by metal tabs. One end of the battery pack shows a metal connector tab, indicating it is ready for direct installation into compatible devices.
3. Setup and Installation
This battery pack is designed for self-installation and requires no soldering. Follow these steps for proper installation:
- Safety First: Ensure the Black & Decker GS300 Grass Shears are turned off and unplugged from any charging source before beginning the installation process.
- Access Battery Compartment: Locate and open the battery compartment of your Black & Decker GS300 Grass Shears. This may involve removing screws or clips. Refer to your original grass shears manual if unsure.
- Remove Old Battery: Carefully disconnect and remove the old battery pack from the compartment. Note its orientation for correct installation of the new pack.
- Insert New Battery: Place the new Eztronics Corp battery pack into the compartment, ensuring the connector aligns correctly with the device's terminals. The battery pack is designed with a connector for easy, direct fit.
- Secure Compartment: Close and secure the battery compartment.
- Initial Charge: It is recommended to fully charge the new battery pack before its first use. Refer to the charging instructions for your Black & Decker GS300 Grass Shears.
4. Operating Instructions
Once installed, the battery pack operates in conjunction with your Black & Decker GS300 Grass Shears. Follow the operating instructions provided with your grass shears for proper usage.
- Charging: Use only the charger specifically designed for the Black & Decker GS300 Grass Shears. Overcharging or using an incompatible charger can damage the battery. NiMH batteries benefit from a full charge cycle.
- Discharging: Operate your grass shears as intended. The battery will provide consistent power until its charge is depleted.
- Storage: If storing the battery for an extended period, it is advisable to charge it to approximately 50% capacity and store it in a cool, dry place. Avoid extreme temperatures.
5. Maintenance
Proper maintenance ensures the longevity and performance of your battery pack:
- Cleaning: Keep the battery pack and its contacts clean and free from dust or debris. Use a dry cloth for cleaning.
- Temperature: Avoid exposing the battery to extreme temperatures (below 0°C / 32°F or above 45°C / 113°F) during operation, charging, or storage.
- Regular Use: For optimal NiMH battery health, regular use and full charge/discharge cycles are beneficial. Avoid frequent partial discharges followed by recharges.
- Disposal: Do not dispose of battery packs in household waste. NiMH batteries contain recyclable materials. Consult your local regulations for proper battery recycling and disposal.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging. | Charger not connected, faulty charger, or battery not seated correctly. | Ensure charger is properly connected. Test charger with another compatible battery if possible. Re-seat the battery pack firmly in the grass shears. |
| Short operating time. | Battery not fully charged, aging battery, or operating in extreme conditions. | Ensure battery is fully charged before use. NiMH batteries may experience reduced capacity over time. Avoid heavy use in very cold or hot environments. |
| Grass shears not turning on. | Battery not installed correctly, battery fully discharged, or issue with the grass shears itself. | Verify battery installation. Charge the battery. If the issue persists, consult the Black & Decker GS300 Grass Shears manual for device-specific troubleshooting. |
7. Specifications
- Battery Type: NiMH (Nickel-Metal Hydride)
- Cell Configuration: 3x 4/5 Sub C cells
- Nominal Voltage: 3.6 Volts
- Capacity: 2000mAh / 2.0AH
- Compatibility: Specifically designed for Black & Decker GS300 Type 3 (3.6 volt) Cordless Grass Shears, model 387051-00.
- Installation: With connector, no soldering required, easy installation.
- Manufacturer: Eztronics Corp
- Country of Origin: China
- Reusability: Rechargeable
8. Warranty and Support
For product support or inquiries, please contact Eztronics Corp directly. Information regarding specific warranty terms for this battery pack should be obtained from the point of purchase or Eztronics Corp. Please note that standard return policies may apply, such as a 30-day return window from the date of purchase.
Disclaimer: This battery pack is a replacement part and is not manufactured by Black & Decker. "Black & Decker" is a registered trademark of Stanley Black & Decker, Inc.